Fairway Overseed Turfgrass Trials
1996-1997 Season
D.M. Kopec, J.J. Gilbert and D.E. Kerr
Abstract
Twenty-three overseed entries (and a non-overseed check) were evaluated from November 1996 to
June 1997 for turf performance over Tifgreen (328) bermudagrass. Entries varied for turfgrass
establishment, color, quality, density, texture and uniformity on all evaluation dates. One annual
ryegrass and three intermediate ryegrass Lolium hybridium entries were included. The intermediate
type >Hybrid X-NC= had better performance than >Froghair= or >Hybredium= intermediate hybrids in
most cases, except for early transition. Entries which consistently had the darkest green genetic color
included >Citation III=, >LPQ-N3', >EP-20', >Charger II=, >84-91', >WX-140', and >Roadrunner=. Entries
which consistently ranked high in overall turfgrass performance included >Citation III=, >2-DLM=, >8491', >Roadrunner=, >Charger II=, >WX-140', >93-7', and >LPQ-N3'.
Introduction
Each year, many superintendents in the Southwest elect to overseed golf courses in order to maintain a green, year- round
playable surface on greens, tees and fairways. The fall overseed actually becomes the dominant grass feature of the golf
course, since the golf course may feature the cool season overseed turf from October until mid-July of the following year.
Ideally an overseed grass should germinate quickly and provide a uniform stand of turf with adequate density and
uniformity. Color selection is based more on choice, but the color must be uniform throughout the turf itself. Finally, an
ideal turf should gracefully yield to the underlying bermudagrass completely by late June. The sum of these qualities are
highly desirable from a turfgrass managers perspective. This test included twenty-three (23) entries of either perennial
ryegrass, intermediate hybrid ryegrass (Lolium hybridium), or annual ryegrass for evaluation as overseeded turf.
Materials and Methods
A five year old stand of Tifgreen (328) hybrid bermudagrass was prepared one and one-half months before actual
overseeding on October 24, 1996. At six and three weeks before overseeding the bermudagrass was treated with Rubigan
(fenarimol) at 6 ounces/product/1000 ft2 on each application date for pre-emergence control of Poa annua. A final
fertilizing at 1/4 lb. -N-/1000 ft2 was applied six weeks prior to seeding. At eight days prior to overseeding, water
application levels were decreased from 85% to 55% of reference Eto provided by a weather station on site. The green
was then allowed to elongate with three days of growth, followed by an extremely light verticutting in one direction.
Plots were then seeded in three directions at 20 lbs. per 1000 ft2 with hand shakers (coffee cans with small holes drilled in
the base). Plot size was 5' by 6' feet. Entries were then top dressed with approximately 1/4" of sand, followed by double
rolling with a 840 lb. roller. The test site was then irrigated four times daily for germination and emergence. Plots were
first mowed on November 3 at 1.25" and then decreased to 3/4" mowing height on November 15. The turfs received a
total of 6, 3 and 4 lbs. of N, P and K per 1000 ft2 from 9 applications from November 1996 to June 1997. A total of 12
ounces/1000 ft2 of Ferromec were applied on 4 occasions from November 15 to June
_____________________________
This is a part of the University of Arizona College of Agriculture 2001 Turfgrass and Ornamental Research Report, index
at: http://ag.arizona.edu/pubs/crops/az1246/
Individual plots were visually scored for emergence (vigor), turfgrass color, quality, texture, density, uniformity, spring
stress (from poor mowing and heat tolerance) and early June transition.
The test was a randomized complete block field design with three replications. All data was subjected to the analysis of
variance technique using SAS software and least significant difference (LSD) values were calculated as a mean
separation statistic for comparison purposes. LSD values are provided when the treatment (overseed entry) effect F ratio
had a probability of P=0.05, or less.
Results and Discussion
Establishment:
On November 12, 1996, plots were scored for emergence vigor which was a combined visual estimate of stand cover and
overall growth. The scoring scale was 1-6, whereas 1=none, 4=moderate, 6=complete. Mean vigor emergence scores
ranged from low values of 2.0 (slight) to 6.0 (highest possible). The intermediate ryegrass entries >Froghair=,
>Hybredium=, >Hybrid X-NC=, and annual ryegrass (Lolium multiflorum) had mean vigor establishment scores or 4.3 to
6.0. >Froghair= and >annual= had the greatest vigor, with mean scores of 6.0. Five entries had mean scores of 2.0 (Table 1).
Percent plot cover (0-100%) ranged from 35% (MVF 4-1) to 63% for >annual ryegrass=. The perennial ryegrass entries
>Partner= and >93-3', >ELP=, >92-4', >Hybredium= and 'Mix #1' had 45% or greater percent ground cover (Table 1). By
December 18, all plots had achieved 100% ground cover.
Turfgrass Color:
Turfgrass color scores were assigned monthly, from December 1996 to June 1997, using a visual scale of 1-9 (1=straw,
9=darkest possible). Overseed entry effects were significant on all dates of evaluation. ACool season@ color scores were
calculated as the average of individual scores for the months of December, January and February, while Aspring color@
average scores were calculated from individual monthly scores of March, April, May and June.
For December, >Citation III=, >84-9', >EP-20', >LPQ-N3' and >WX3-92' all had color scores of 7.0, showing darker color.
Among the intermediate ryegrass, >Hybrid X-NC= scored a mean value of 6.0, followed by >Hybredium= (5.3) and
>Froghair= (4.7). >Annual= had a mean December color score of 4.0 (very light green in color) (Table 2).
On January 27, mean color scores ranged from 4.0 to 8.0, with >LPQ-N3' and >Citation III= having mean color scores of
8.0. Entries >Roadrunner=, >EP-20' and >2 DLM= had mean color scores of 7.3, followed by >WX-4-140' and >84-91', which
had mean scores of 7.0 (Table 2).
On February 26, 1997, mean color scores ranged from 3.0 to 8.7 among overseeded plots. >LPQ-N3' scored a mean color
value of 8.7, exhibiting a very dark color. >Citation III= and >EP-20' followed with mean color scores of 7.7 and 7.3,
respectively. Among the non-perennial ryegrass entries, >Hybrid X-NC= had the highest numerical color score (5.0). By
late November, the non-overseeded check (Tifgreen) had some activity showing a very slow green-up (Table 2).
ACool season color@ scores (average of December, January and February) ranged from 3.7 to 7.9 among overseed entries.
>LPQ-N3', >Citation III=, and >EP-20' had average color scores (for this period) of 7.2 or greater. >Hybrid X-NC= scored
5.3, followed by >Hybredium= (5.2). >Froghair= intermediate was slightly darker than >annual= (4.0 and 3.7, respectively
(Table 2).
On March 26, 1997, mean color scores ranged from 3.0 (>annual=) to 8.3 (>Citation III=). >LPQ-N3' and >2-DLM= PR
scored mean values of 8.0 and 7.3, respectively. Entries >84-91', >WX-140' and >EP-20' scored mean color values of 7.0 at
this time. The non-overseeded check (Tifgreen) was now green, with a mean color score of 5.7. >Hybrid X-NC=,
>Hybredium= and >Froghair= (all intermediate ryegrasses) had mean color scores of 4.7, 4.0 and 3.3, respectively (Table 3).
On April 15, mean color scores ranged from 2.3 to 8.0. Again, >Citation III= and >LPQ-N3' had mean color scores of 7.7,
or greater, along with >Charger II=, which began showing better performance under increased daytime temperatures.
Annual ryegrass had the lightest color turf (2.3)(Table 3). Mean color scores ranged from 3.0 to 8.7 on May 23, 1997.
Again,
>Citation III= and >LPQ-N3' had color scores of 8.0 or greater. The entry >2 DLM= now received an identical color score as
that of >Charger II= (7.3)(Table 3). The non-overseeded bermudagrass was darker than the >intermediate= ryegrasses, as
well as that of the annual ryegrass (Table 3).
Final color scores were assigned on June 6, 1997. Mean values ranged from 2.3 to 8.3. >Citation III= and >2-DLM= had
mean end-season color scores of 8.0, or greater. The entry >2-DLM= was noted in previous trials to exhibit very good
color, including during hot weather. >LPQ-N3' and >Charger II= had mean color scores of 7.3 and 7.0, respectively. Entries
>84-91', >93-7' and >APRX-PR= concluded the season with mean color scores of 7.0. >Hybrid X-NC= had the darker color,
among intermediates. Entries with mean values of 5.5 or less, would be noticeably light in color to the golfer, or lay
person (Table 3).
For overall Aspring color@ (March, April, May and June average), >Citation III= and >LPQ-N3' provided, in general, the
darkest green color. These two varieties tended to have the darkest color in the cooler months, as well (Table 2), (Tables
2, 3). >Hybrid X-NC= had better spring color than >Froghair= intermediate or annual ryegrass (Table 3). When comparing
Awinter@ and Aspring@ mean color scores, note that >Citation III= and >LPQ-N3' had leading rank scores in both seasons.
The entry >2-DLM= increased its relative rank performance in the spring, as did >WX3-92', >WX-4-140' and >Charger II=
(Tables 2, 3).
Total year-long averages for color ranged from 3.1 (>annual=) to 7.9 (>Citation III=), followed by >LPQ-N3' (7.8) and >2DLM= (7.1). Five other entries scored overall color scores of 6.6 to 6.8. These included >EP-20', >Charger II=, >84-91 PR=
and >WX-4-140' (Table 4). >Hybrid X-NC= scored an overall color of 4.7, followed by >Hybredium= (4.4) and >Froghair=
(3.4). >Annual= ryegrass scored an overall value of 3.2 (Table 4).
Turfgrass Quality:
Quality scores were assigned using the visual scale of 1-9, where 1=dead turf, 9=best possible, with a score of 6 or above
being acceptable for golf turf. Turfgrass quality is the visual assessment of the turfgrass appearance in terms of
smoothness, uniformity, texture, tolerance to mowing and general appeal. Plots were assigned values monthly from
December 1996 to June 1997. Color is not part of the assessment, unless the color is non-uniform (poor performance).
Turfgrass quality ratings were significant on all evaluation dates. AWinter@ mean quality scores were derived from plot
scores from the months of December, January and February, while Aspring@ quality scores were derived from the monthly
evaluation in March, April, May and June.
In December 1996, quality scores ranged from 4.3 to 6.7 among relatively juvenile turfs. The entries >Charger II=, >ELF=,
>93-3' and >Roadrunner= all had mean quality scores of 6.7, followed by >2-DLM=, >Partner=, >Citation III= and >Gator=, all
with mean scores of 6.3. >Hybrid X-NC= had a mean quality score of 5.7, which was statistically different from that of
>Hybredium= and >Froghair= intermediates (Table 5).
For January 1997, quality scores ranged from 3.7 to 7.7 among overseed entries. The entry >93-7' had a mean quality
score of 7.7, followed by >2-DLM= and >Citation III= (both with values of 7.3). Entries >WX3-92' and >MVF-4-1' were next
with mean scores of 7.0. >Hybrid X-NC= had a mean quality score of 5.7, followed by >Hybredium= (5.0), >Froghair= (4.0)
and >Annual= (3.7) (Table 5).
On January 27, mean turfgrass quality scores ranged from 3.0 to 8.0. Entries >2-DLM= and >84-91' had mean quality
scores of 8.0, followed by >WX3-92' (7.7). These entries exhibited high performance turfs from visual assessment.
Among the intermediate ryegrass entries, >Hybrid X-NC= had a mean quality score of 5.0, followed by >Hybredium= (3.7)
and >Froghair= (3.0)(Table 5).
AWinter average@ quality scores ranged from 3.7 to 7.2 among overseed entries. The entries >2-DLM= and >Citation III=
had mean winter average quality scores of 7.0, or greater. Entries >84-91', >Roadrunner=, >WX3-92' and >MVF4-1' had
overall winter quality mean scores of 6.6 to 6.9 (Table 5). Generally, those entries which ranked the highest in January
and February had the best overall Awinter@ quality average performance. Note, however, that during the single coldest
month (December), that >93-3', >Charger II= and >ELF= had relatively high scores (in rank). These three entries lost rank
somewhat in January and February, and subsequently in the overall Awinter@ quality ratings (Table 5).
Warmer and ideal conditions for cool season turfgrasses occurred in March. Mean quality scores among overseed entries
ranged from 2.7 to 8.0. The entry >Citation III= had the highest numerical quality score of 8.0, followed by >WX4-140'
(7.7), >84-91' (7.3), >LPQ-N3' (7.3). At this time, >Hybredium= intermediate ryegrass had started to mow extremely poorly,
exhibiting excessive leaf shredding, much or more so than >annual= ryegrass. >Hybrid X-NC= had better mowing
performance, better texture and thus a better overall quality score (4.3)(Table 6).
Quality scores ranged from 2.0 to 7.7 on April 15, 1997. Entries >LPQ-N3' and >Citation III= had mean quality scores of
7.7, followed by >84-91' and >Charger II= (7.3). >Hybredium= continued to decline, with poor mowing performance in
warm weather (Table 6).
On May 23, 1997, mean quality scores decreased slightly compared to the previous month. Mean quality scores ranged
from 2.7 to 7.3. >Charger II= had the highest rank score (7.3), followed closely by >Citation III= and >93-7'. Five perennial
ryegrass had entries of 5.0 or less by this time. The non-overseeded bermudagrass had a mean quality score of 5.3.
>Froghair= intermediate and >annual= ryegrass had low value quality mean scores of 2.6. These two entries exhibited a
higher shoot loss (necrosis) than >Hybredium= or >Hybrid X-NC= (observation, no data shown). The entry >Hybrid X-NC=
was the only intermediate ryegrass which did not exhibit noticeable leaf shredding among the intermediate types (Table
6).
The final quality scores were assigned on June 6, 1997. Mean entry quality scores ranged from 2.0 (>Froghair=
intermediate) to 7.7 (>Citation III=), which maintained a high level of overall turf performance in the heat of the desert
spring. Entries >84-91' and >2-DLM= ranked next, both with mean scores of 7.3. The entries >APRX-PR=, >92-4' and
>Partner= finished with means of 6.7.
ASpring@ quality season averages ranged from 2.4 to 7.6. >Citation III= had the highest rank for spring quality, with an
average quality score of 7.6, followed by >84-91' (7.2). There were four entries which had mean spring quality scores of
5.9 or less. The intermediate ryegrass >Hybrid X-NC= scored an overall quality rating of 4.1, compared to >Hybredium=
(2.7), >annual= (2.7) and >Froghair= intermediate (2.4). Throughout the spring period, some entries changed in rank
performance (March vs. June). For example, >EP-20' had its best and notable spring performance occur in March, which
declined in May and June (Table 6). Entries >92-4' and >Partner= excelled in June, with higher quality scores among these
entries, compared to performance in March, April and May. The entry >WX-4-140' had excellent quality in March, which
decreased slightly in the remaining months.
Overall yearly quality mean scores ranged from 3.1 to 7.3. The entries >Citation III=, >2-DLM= and >84-91' had yearly
overall quality ratings of 7.0, or better. Only one perennial ryegrass had a yearly overall quality score of less than 6.0
(Table 4). >Hybrid X-NC= had the highest quality rank among non-perennial ryegrass germplasm (4.7).
Uniformity:
Uniformity scores were assigned to plots on six evaluation dates, using the 1-9 scale. Uniformity incorporates the overall
consistency of the plot (within plot visual variation). It is (should) not be effected by the magnitude of other responses
(color, texture, etc.). For example, >annual= ryegrass could score highly for uniformity, if all the leaf blades appeared to
have the same leaf width (texture). The fact that the leaf texture is coarse does not affect its uniformity assessment.
Uniformity scores ranged from 5.0 to 7.0 on December 18, 1996. Entries >Partner=, >93-3' >Roadrunner= and >Charger II=
had mean uniformity scores of 6.7, or greater. >Hybrid X-NC= had a mean uniformity score of 6.3, followed by
>Hybredium= and >Froghair= intermediates (6.0). There were several perennial ryegrasses which ranked lower than annual
ryegrass for uniformity in December (Table 7).
For January, mean uniformity scores ranked from 5.0 (annual ryegrass) to 7.7 for entry >WX4-140'. >WX4-140' was
followed closely by >Mix >Hybredium=1', >2-DLM= and >APRX-PR=, which all scored mean values of 7.3. There were
three entries which scored mean uniformity value scores of less than 6.0. These included >Froghair= intermediate, >Partner=
PR, and >annual= ryegrass (Table 7). The average of the two previous months ratings was used to calculate the Awinter
uniformity average.@
By March 1997, mean uniformity scores ranged from 3.3 to 7.7, showing a greater range in turf performance as the turfs
matured. The >Citation III= entry ranked first numerically, with a mean uniformity score of 7.7, followed closely by
>WX4-140' (7.3) and >Roadrunner= (7.3). The following had mean uniformity scores of 7.0; >2-DLM=, >LPQ-N3', >APRX-
PR= and >Charger II=. >Hybrid X-NC= was more uniform in appearance than its intermediate ryegrass counter parts, with a
mean uniformity score of 4.3 (Table 8).
By April, uniformity scores were generally acceptable for most turfs. Only two perennial ryegrass entries, MVF4-1 and
>Partner= had mean uniformity scores of less than 6.0 (mean = 5.7). >Hybrid X-NC= appeared more uniform than the other
non-perennial ryegrass entries (Table 8).
By late May, uniformity mean scores ranged from 3.0 to 7.0. The entries >Citation III=, >Charger=, >93-3' and >2-DLM= had
mean uniformity scores of 6.7, or greater. As the higher daytime temperatures arrived, there were now a total of four
perennial ryegrasses which had mean uniformity scores of 5.7, or less. These included >ELF=, >Partner=, >84-91' and >EP20' (Table 8).
Final uniformity scores were assigned on June 6, 1997. Plots overall, responded to the previous nitrogen application.
Mean entry scores ranged from 2.0 to 8.0. The >Citation III= entry scored the highest numerical score of 8.0, followed by
the non-overseed bermudagrass and >84-91', both with mean uniformity scores of 7.0. At the close of this test, almost
40% of the perennial ryegrass entries had mean uniformity scores of 5.7 or less. This is due most likely to accumulated
heat stress, decreased mowing performance and differential growth of surviving tillers within the canopy (after/or during
stress). >Hybrid X-NC= ranked higher in uniformity than three perennial ryegrass entries, as well as the other
>intermediate= and >annual= ryegrass plots (Table 8).
ASpring@ uniformity average values (March - June) ranged from 2.8 to 7.5. >Citation III= ranked first with a value of 7.5.
Entries >2-DLM=, >Charger II= and >84-91' all had values of 6.7, or greater. Six perennial ryegrass entries had scores of 5.8
or lower, followed by the >intermediates= and annual ryegrass (Table 8).
Density:
Plots were assigned visual density scores using the 1-9 visual scale on six evaluation dates. Density scores are basically a
relative assessment of the apparent shoot density within a turf plot.
Density scores were first assigned on December 18, 1997. Mean performance scores ranged from 5.0 (>annual= ryegrass)
to 7.0 for >2-DLM=, >ELF=, >Gator II= and >Citation III= perennial ryegrasses. >Hybrid X-NC= ranked above the other
intermediate ryegrasses for density (Table 9).
On January 27, mean density scores ranged from 4.3 to 7.8. The entries, >WX4-140' and >2-DLM= had mean density
scores of 7.7, followed by >APRX-PR= and >Gator II= (means=7.3). All perennial ryegrass entries had mean density scores
of 6.3 or greater at this time. >Hybrid X-NC= had a noticeably denser turf than its counterparts (Table 9).
On February 26, density scores ranged from 2.7 to 8.0. Good growing conditions and moderate mowing stress allowed
the entries to express a range in shoot densities at the seeding rates (20 lbs./m) used here. The highest ranking entry was
that of >APRX-PR=, with a mean density score of 8.0, followed closely by >Gator II= and >EP-20' (means=7.7). Five other
entries scored mean density values of 7.3; >WX4-140', >84-91', >MVF4-1', >Roadrunner= and >Citation III=. >Hybrid X-NC=
intermediate ryegrass was noticeably more dense than the other intermediate types and annual ryegrass as well (Table 9).
ASpring average@ densities were assigned to plots on March 26, April 15 and June 6. Those entries which exhibited the
greatest visual densities included, >EP-20', >WX4-140', >2-DLM=, >Roadrunner=, >Citation III=, >APRX-PR= and >Charger II=
(Table 9). >Hybrid X-NC= had moderate shoot density throughout spring evaluations (5.0-5.3 range)(Table 10).
Leaf Texture:
Leaf texture scores were assigned to plots on six dates, using the 1-9 progressive scale (1=coarse, 9=finest). Texture is an
estimate of the predominate leaf width. Usually, turfgrasses with high shoot densities have the finest leaf textures.
Texture scores were first assigned to plots on December 18, 1996. Mean scores ranged from 4.7 (>Hybredium=) to 8.0
(>APRX-PR=). Entries >2-DLM=, >EP-20', >84-91' and >ELF= had mean texture scores of 7.7, showing a fine leaf texture.
Only the intermediate hybrid ryegrasses (and >annual=) had leaf texture ratings of 5.7 or less, with >annual= having finer
leaves in December than >Froghair= or >Hybredium= (Table 11). By late January, texture scores ranged only from 4.0 to
7.3, with perennial ryegrass ranging from 6.3 to 7.3. Again the intermediate ryegrasses were coarser than the perennial
germplasm, noting however, that >Hybrid X-NC= was ranked the finest among intermediate types (Table 11). The same
general trend occurred for the February ratings with >WX4-140', >2-DLM=, >APRX-PR=, >Gator II= and >Citation III= having
mean texture scores of 7.7, or greater (Table 11). Leaf texture expression was perhaps its greatest in March. Mean entry
scores ranged from 3.0 to 8.3. >EP-20' and WX4-140' exhibited very fine leaf textures, with mean scores of 8.3 and 8.0,
respectively. An additional eleven entries posted mean texture scores of 7.0 to 7.3 (Table 12).
In April 1997, almost 50% of all entries had mean texture scores of 7.0, or greater, with >2-DLM=, >84-91' and 8.0 having
mean scores of 7.7, or greater. >Hybrid X-NC= intermediate ryegrass had a mean leaf texture score of 6.0 (Table 12).
Final texture scores were done on June 6, 1997. The entries >Roadrunner=, >2-DLM=, >84-91', >EP-20', >APRX-PR= and
>Citation III= scored mean texture values of 7.0, or greater. Four perennial ryegrass entries had scores of 5.7 or less
(>Partner=, >LPQ-N3', >93-7', >93-3')(Table 12).
Throughout the spring months (spring average), >EP-20' had an average of 7.0 for leaf texture, as part of a dense canopy
of fine leaves including the month of June. >WX4-140' slowly decreased in texture from March to June, as did >93-7'
(Table 12). Along with >EP-20', the entries >2-DLM=, >84-91' and >Citation III= maintained a fine leaf texture during the
entire spring season (Table 12).
Transition:
The exit of the ryegrass and the appearance of the bermudagrass can take many forms. These range from (1) poor
mowing of cool season grass, (2) rapid death of the cool season grass and (3) the cool season grass maintaining an
acceptable appearance but being out-competed by the bermudagrass (most desirable transition). The most undesirable
scenario is case number two, without bermudagrass present under the canopy.
On June 6, 1997, plots were assigned scores on a percent plot basis (0-100%), for visual turfgrass stress. This rating
included that portion of the plot which showed accumulated heat stress symptoms, excessive leaf shredding, or both (case
1 & 2). Basically, there were three responses among the entries. >Hybredium= and >Froghair= intermediate ryegrasses
exhibited the most visible symptoms (75% and 67%, respectively), followed closely by >annual= (mean=62%). >Annual=
ryegrass and >Froghair= exhibited a large amount of plant necrosis, with the underlying bermudagrass sparingly, but
consistently, filling in. This constitutes an Aungracious transition@ to the average golfer. >Hybredium= maintained more
foliage in the canopy, but mowed worse than >annual=. >Hybrid X-NC= did not exhibit as poor mowing qualities and
maintained more of the overseed canopy than the other two intermediates, and >annual= ryegrass. Its stress score was
13%. All other entries (perennial ryegrasses) ranged from 10% to 9% plot stress.
Actual bermudagrass transition was determined in early June by observing the amount of bermudagrass in the canopy on
a percentage plot basis. A 20 inch band of an experimental herbicide, which causes chlorophyll loss in bermudagrass,
was applied across the edge of all plots. The herbicide was applied on June 1, 1997. Expression was temporary and did
not result in death of the bermudagrass. Entries which had the greatest amount of bermuda included the following;
>Annual= (78%), >Hybredium= (43%), >Froghair= (39%), >WX3-92' (28%), >2-DLM= (25%). >Hybrid X-NC=, which ranked
highest in turf attributes (generally) among the intermediates, also had the least amount of bermudagrass (among its
intermediate counterparts) on June 11 (mean=11%). Time permitting and at the sole discretion of the author, transition
may be monitored further.
FN:FAIRWAY.97 DIR:Q29
Table 1. Establishment vigor1 and percent plot2 establishment scores. 1996-1997 Fairway Overseed Trials,
University of Arizona. November 18, 1997.
ENTRY
1
VIGOR SCORE
ENTRY
% PLOT COVER
Annual Rye
6.0
Annual Rye
63
Froghair
6.0
Froghair
58
Hybredium
4.7
Hybred X-NC
53
Hybred X-NC
4.3
Partner
48
93-3
3.7
Hybredium
47
Partner
3.3
ELF
47
Roadrunner PR
3.0
93-3
47
92-4
3.0
92-4
45
Mix #1
3.0
Mix #1
45
ELF
3.0
GATOR-II (rupr)
43
Charger II PR
3.0
93-7
42
Citation III PR
2.7
Charger II PR
42
GATOR-II (rupr)
2.7
WX4-140
42
93-7
2.7
Mix #2
40
Mix #2
2.3
Roadrunner PR
40
APRX-PR
2.3
LPQ-N3
40
2-DLM
2.3
2-DLM
38
LPQ-N3
2.3
Citation III PR
38
EP-20 PR
2.0
WX3-92
38
84-91 PR
2.0
84-91 PR
38
MVF 4-1
2.0
EP-20 PR
37
WX3-92
2.0
APRX-PR
37
WX4-140
2.0
MVF 4-1
35
Non-seeded check
0
TEST MEAN3
4.0
42
LSD VALUE4
0.9
7.0
Vigor score 1-6, 1=no vigor, 4=moderate, 6=best possible response. Values are the means of three replications.
Percent plot establishment (0-100%), percent plot cover of overseed grass.
3
Test Mean = mean of all entries on each test date.
4
LSD Value = LSD mean separation statistic. Differences between treatment means must be greater than LSD value
for treatments to be statistically different from each other.
2
Table 2. Mean color scores1 for Fall/Winter 1996-1997 Overseed Trials, University of Arizona.
ENTRY
1
DEC 18
JAN 27
FEB 26
WINTER AVG.
LPQ-N3 PR
7.0
8.0
8.7
7.9
Citation III PR
7.0
8.0
7.7
7.6
EP-20 PR
7.0
7.3
7.3
7.2
Roadrunner PR
6.3
7.3
7.0
6.9
2-DLM PR
6.7
7.3
6.7
6.9
84-91 PR
7.0
7.0
6.3
6.8
WX4-140 PR
6.3
7.0
6.7
6.7
Charger II PR
6.3
6.3
6.7
6.4
MVF 4-1 PR
6.3
6.7
6.0
6.3
Mix #1
6.0
6.7
5.7
6.1
Elf PR
6.0
6.0
6.3
6.1
WX3-92 PR
7.0
4.7
6.3
6.0
93-7 PR
5.7
6.3
6.0
6.0
Mix #2 PR
6.0
6.0
5.3
5.8
APRX-PR
5.7
6.0
5.3
5.7
93-3 PR
5.3
6.0
5.3
5.6
Gator-II PR
5.0
6.0
5.0
5.3
Hybrid X-NC INT
6.0
5.0
5.0
5.3
Hybredium INT
5.3
6.0
4.3
5.2
92-4 PR
5.0
5.7
5.0
5.2
Partner PR
4.7
5.3
5.3
5.1
Froghair INT
4.7
4.0
3.3
4.0
Annual Rye
4.0
4.0
3.0
3.7
Non-seeded check
1.0
1.7
1.7
1.4
TEST MEAN2
5.7
6.0
5.7
5.8
LSD VALUE3
0.8.
1.3
0.8
0.7
Color scores 1-9, 1=dead, 9=darkest green possible. Values are the means of three replications.
Test Mean = mean of all entries on each test date.
3
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are
significantly different from each other.
2
Table 3. Mean color scores1 for Fall/Winter 1996-1997 Overseed Trials, University of Arizona.
ENTRY
1
MAR 26
APR 15
MAY 23
JUNE 6
SPRING AVG.
Citation III PR
8.3
8.0
8.7
8.3
8.3
LPQ-N3 PR
8.0
7.7
8.0
7.7
7.8
2-DLM PR
7.3
6.7
7.3
8.0
7.3
Charger II PR
6.3
7.7
7.3
7.3
7.2
WX3-92 PR
6.7
6.7
6.7
6.3
6.6
WX4-140 PR
7.0
6.3
6.7
6.3
6.6
84-91 PR
7.0
6.3
6.0
7.0
6.6
EP-20 PR
7.0
6.3
6.3
6.3
6.5
APRX-PR
6.3
6.3
6.0
7.0
6.4
93-7 PR
6.3
6.0
6.3
7.0
6.4
Roadrunner PR
6.7
6.0
6.0
6.7
6.3
MVF 4-1 PR
6.3
6.0
6.3
6.7
6.3
Elf PR
6.3
6.0
5.7
6.3
6.1
Mix #2 PR
5.3
6.0
6.3
6.0
5.9
Mix #1 PR
6.0
5.7
6.3
5.7
5.9
Gator-II PR
5.0
6.0
5.3
6.7
5.8
92-4 PR
5.0
5.3
6.3
6.0
5.7
93-3 PR
5.3
5.7
5.0
6.3
5.6
Partner PR
4.7
5.3
5.3
5.7
5.3
Non-seeded check
5.7
4.7
5.0
5.3
5.2
Hybrid X-NC INT
4.7
3.7
3.7
4.0
4.0
Hybredium INT
4.0
3.7
3.7
3.0
3.6
Froghair INT
3.3
2.7
3.0
2.3
2.8
Annual Rye
3.0
2.3
3.0
2.3
2.7
TEST MEAN2
5.9
5.7
5.8
6.0
5.9
LSD VALUE3
0.9
1.2
1.2
1.2
0.7
Color scores 1-9, 1=dead, 9=darkest green possible. Values are the means of three replications.
Test Mean = mean of all entries on each test date.
3
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are
significantly different from each other.
2
Table 4. Yearly mean color, quality, density and texture scores1 1996-1997 trials, University of Arizona.
1
ENTRY
COLOR2
ENTRY
QUALITY2
ENTRY
DENSITY2
ENTRY
TEXTURE2
Citation III PR
7.9
Citation III PR
7.3
WX4-140 PR
7.3
2-DLM PR
7.4
LPQ-N3 PR
7.9
2-DLM PR
7.1
2-DLM PR
7.3
EP-20 PR
7.4
2-DLM PR
7.1
84-91 PR
7.0
APRX-PR
7.3
APRX-PR
7.4
EP-20 PR
6.9
93-7 PR
6.7
Citation III PR
7.3
84-91 PR
7.4
Charger II PR
6.8
Roadrunner PR
6.7
EP-20 PR
7.2
WX4-140 PR
7.3
84-91 PR
6.7
Charger II PR
6.6
Roadrunner PR
7.2
Citation III PR
7.2
WX4-140 PR
6.6
WX4-140 PR
6.6
Gator-II PR
7.1
Roadrunner PR
7.2
Roadrunner PR
6.6
LPQ-N3 PR
6.5
LPQ-N3 PR
6.9
Gator-II PR
6.9
MVF 4-1 PR
6.3
Mix #2 PR
6.5
84-91 PR
6.9
WX3-92 PR
6.9
WX3-92 PR
6.3
WX3-92 PR
6.4
Charger II PR
6.8
Mix #2 PR
6.9
93-7 PR
6.2
APRX-PR
6.4
WX3-92 PR
6.7
Elf PR
6.8
Elf PR
6.1
Gator-II PR
6.4
Mix #2 PR
6.7
Charger II PR
6.7
APRX-PR
6.0
MVF 4-1 PR
6.3
93-7 PR
6.7
LPQ-N3 PR
6.7
Mix #1 PR
6.0
Mix #1 PR
6.3
MVF 4-1 PR
6.7
93-7 PR
6.7
Mix #2 PR
5.8
92-4 PR
6.1
Mix #1 PR
6.5
Mix #1 PR
6.6
93-3 PR
5.3
93-3 PR
6.1
Elf PR
6.5
MVF 4-1 PR
6.5
Gator-II PR
5.5
Elf PR
6.1
93-3 PR
6.4
92-4 PR
6.4
92-4 PR
5.4
EP-20 PR
6.1
92-4 PR
6.4
93-3 PR
6.3
Partner PR
5.2
Partner PR
5.8
Partner PR
6.2
Partner PR
6.2
Hybrid X-NC INT
4.7
Hybrid X-NC INT
4.8
Hybrid X-NC INT
5.3
Hybrid X-NC INT
5.2
Hybredium INT
4.4
Hybredium INT
3.6
Hybredium INT
4.3
Hybredium INT
4.1
Froghair INT
3.4
Annual Rye
3.3
Froghair INT
3.9
Annual Rye
3.7
Non-seeded check
3.3
Non-seeded check
3.3
Annual Rye
3.6
Non-seeded check
3.7
Annual Rye
3.2
Froghair INT
3.1
Non-seeded check
3.5
Froghair INT
3.7
TEST MEAN3
5.8
5.6
6.3
6.3
LSD VALUE4
0.5
0.7
0.7
0.6
Values are means of three replications, averaged over all evaluation dates, 1996-1997.
Color, quality, density and texture (1-9). 1=dead, 9=best.
3
Test Mean = Mean of all entries.
4
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are significantly different from each other.
2
Table 5. Mean quality1 scores for Fall/Winter 1996-1997 Overseed Trials, University of Arizona.
ENTRY
1
DEC 18
JAN 27
FEB 26
WINTER AVG.
2-DLM PR
6.3
7.3
8.0
7.2
Citation III PR
6.3
7.3
7.3
7.0
93-7 PR
5.7
7.7
7.3
6.9
84-91 PR
6.0
6.7
8.0
6.9
Roadrunner PR
6.7
6.7
7.3
6.9
WX3-92 PR
5.3
7.0
7.7
6.7
MVF 4-1 PR
6.0
7.0
7.0
6.7
APRX-PR
6.0
6.3
7.3
6.6
Gator-II PR
6.3
6.7
6.7
6.6
Mix #1 PR
6.0
6.7
7.0
6.6
Mix #2 PR
6.0
6.7
7.0
6.6
93-3 PR
6.7
6.3
6.7
6.6
WX4-140 PR
5.7
6.7
7.0
6.4
Charger II PR
6.7
6.0
6.3
6.3
92-4 PR
6.0
6.0
6.7
6.2
LPQ-N3 PR
5.3
6.0
7.3
6.2
Elf PR
6.7
5.7
6.3
6.2
EP-20 PR
5.3
6.3
7.0
6.2
Partner PR
6.3
6.0
6.0
6.1
Hybrid X-NC INT
5.7
5.7
5.0
5.4
Hybredium INT
4.7
5.0
3.7
4.4
Annual Rye
5.0
3.7
3.0
3.9
Froghair INT
4.3
4.0
3.0
3.8
Non-seeded check
1.0
1.7
1.7
1.4
TEST MEAN2
5.7
6.0
6.3
6.0
LSD VALUE3
0.9
1.0
1.3
0.7
Quality scores 1-9, 1=dead, 9=best possible. Values are the means of three replications.
Test Mean = mean of all entries on each test date.
3
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are
significantly different from each other.
2
Table 6. Mean quality scores1 for Fall/Winter 1996-1997 Overseed Trials, University of Arizona.
ENTRY
1
MAR 26
APR 15
MAY 23
JUNE 6
SPRING AVG.
Citation III PR
8.0
7.7
7.0
7.7
7.6
84-91 PR
7.3
7.3
6.7
7.3
7.2
Charger II PR
6.7
7.3
7.3
6.3
6.9
2-DLM PR
7.0
7.0
6.3
7.3
6.9
LPQ-N3 PR
7.3
7.7
6.0
6.0
6.8
WX4-140 PR
7.7
6.7
6.3
6.3
6.8
Roadrunner PR
7.0
6.7
6.3
6.3
6.6
93-7 PR
7.3
6.7
7.0
5.3
6.6
Mix #2 PR
6.3
7.0
6.0
6.3
6.4
APRX-PR
6.7
6.7
4.7
6.7
6.2
Gator-II PR
6.3
6.0
6.0
6.3
6.2
WX3-92 PR
6.7
6.3
6.3
5.3
6.2
Mix #1 PR
6.3
6.7
6.3
5.0
6.1
92-4 PR
5.0
6.3
6.0
6.7
6.0
MVF 4-1 PR
6.0
6.0
6.0
6.0
6.0
Elf PR
6.0
6.0
5.3
6.3
5.9
EP-20 PR
7.0
6.3
5.7
4.7
5.9
93-3 PR
5.7
6.0
5.7
5.3
5.7
Partner PR
5.0
5.7
5.0
6.7
5.6
Non-seeded check
3.7
6.0
5.3
5.3
5.1
Hybrid X-NC INT
4.3
4.0
4.3
3.7
4.1
Hybredium INT
2.7
2.0
3.3
2.7
2.7
Annual Rye
3.0
2.7
2.7
2.3
2.7
Froghair INT
2.7
2.3
2.7
2.0
2.4
TEST MEAN2
5.9
6.0
5.6
5.6
5.8
LSD VALUE3
1.2
1.4
1.6
1.8
1.0
Quality scores 1-9, 1=dead, 9=darkest green possible. Values are the means of three replications.
Test Mean = mean of all entries on each test date.
3
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are
significantly different from each other.
2
Table 7. Mean uniformity1 scores for Fall/Winter 1996-1997 Overseed Trials, University of Arizona.
ENTRY
1
DEC 18
JAN 27
WINTER AVG.
APRX-PR
6.0
7.3
6.7
WX4-140 PR
5.7
7.7
6.7
Mix #1 PR
6.0
7.3
6.7
Roadrunner PR
6.7
6.7
6.7
Citation III PR
6.3
7.0
6.7
Charger II PR
7.0
6.3
6.7
2-DLM PR
6.0
7.3
6.7
93-3 PR
6.7
6.7
6.7
93-7 PR
6.0
7.0
6.5
MVF 4-1 PR
6.3
6.7
6.5
84-91 PR
5.7
7.0
6.3
Hybrid X-NC INT
6.3
6.3
6.3
Elf PR
6.3
6.3
6.3
92-4 PR
6.3
6.3
6.3
Gator-II PR
5.3
7.0
6.2
WX3-92 PR
5.3
7.0
6.2
Mix #2 PR
6.0
6.3
6.2
Partner PR
6.7
5.7
6.2
EP-20 PR
5.3
7.0
6.2
Hybredium INT
6.0
6.0
6.0
Froghair INT
6.0
5.7
5.8
LPQ-N3 PR
5.0
6.3
5.7
Annual Rye
6.0
5.0
5.5
Non-seeded check
--
--
--
TEST MEAN2
6.0
6.6
6.3
LSD VALUE3
1.2
1.1
0.9
Uniformity scores 1-9, 1=dead, 9=complete uniformity. Values are the means of three replications.
Test Mean = mean of all entries on each test date.
3
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are
significantly different from each other.
2
Table 8. Mean uniformity scores1 for Fall/Winter 1996-1997 Overseed Trials, University of Arizona.
ENTRY
1
MAR 26
APR 15
MAY 23
JUNE 6
SPRING AVG.
Citation III PR
7.7
7.3
7.0
8.0
7.5
2-DLM PR
7.0
7.3
6.7
6.7
6.9
Charger II PR
7.0
7.3
6.7
6.7
6.8
84-91 PR
6.7
7.3
5.7
7.0
6.7
WX4-140 PR
7.3
6.7
6.0
5.7
6.4
Roadrunner PR
7.3
6.3
6.0
6.0
6.4
LPQ-N3 PR
7.0
7.0
6.3
5.0
6.3
APRX-PR
7.0
6.0
6.0
6.0
6.3
Gator-II PR
6.0
6.7
6.3
6.0
6.3
WX3-92 PR
6.7
6.7
6.0
5.3
6.2
92-4 PR
5.7
6.3
6.3
6.0
6.1
93-3 PR
6.0
6.0
6.7
5.7
6.1
Mix #2 PR
6.3
6.0
6.0
5.7
6.0
MVF 4-1 PR
6.0
5.7
6.0
6.3
6.0
Elf PR
6.3
6.0
5.7
5.3
5.8
Partner PR
5.3
5.7
5.7
6.3
5.8
93-7 PR
6.0
6.0
6.3
4.7
5.8
Mix #1 PR
6.0
6.7
6.0
3.7
5.6
EP-20 PR
6.7
6.0
5.3
4.3
5.6
Non-seeded check
3.7
6.0
4.3
7.0
5.3
Hybrid X-NC INT
4.3
4.3
4.3
4.7
4.4
Hybredium INT
3.3
3.3
3.0
2.7
3.1
Froghair INT
3.3
3.3
3.7
2.0
3.1
Annual Rye
3.3
3.0
3.0
2.0
2.8
TEST MEAN2
5.9
6.0
5.6
5.4
5.8
LSD VALUE3
1.3
1.4
1.3
1.8
1.0
Uniformity scores 1-9, 1=dead, 9=complete uniformity. Values are the means of three replications.
Test Mean = mean of all entries on each test date.
3
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are
significantly different from each other.
2
Table 9. Mean density1 scores for Fall/Winter 1996-1997 Overseed Trials, University of Arizona.
ENTRY
1
DEC 18
JAN 27
FEB 26
WINTER AVG.
APRX-PR
6.7
7.3
8.0
7.3
Gator-II PR
7.0
7.3
7.7
7.3
WX4-140 PR
6.7
7.7
7.3
7.2
2-DLM PR
7.0
7.7
7.0
7.2
Citation III PR
7.0
7.0
7.3
7.1
EP-20 PR
6.3
6.7
7.7
6.9
84-91 PR
6.3
6.7
7.3
6.8
Roadrunner PR
6.7
6.3
7.3
6.8
MVF 4-1 PR
6.3
6.7
7.3
6.8
LPQ-N3 PR
6.7
7.0
6.3
6.7
Elf PR
7.0
6.7
6.0
6.6
93-7 PR
6.3
6.7
6.7
6.6
WX3-92 PR
6.0
6.7
6.7
6.4
Mix #2 PR
6.3
6.3
6.7
6.4
Mix #1 PR
6.3
6.7
6.3
6.4
Charger II PR
6.7
6.3
6.3
6.4
93-3 PR
6.0
7.0
6.0
6.3
Partner PR
5.7
6.7
6.0
6.1
92-4 PR
6.3
6.3
5.7
6.1
Hybrid X-NC INT
5.7
5.7
5.0
5.4
Hybredium INT
5.0
4.7
3.3
4.3
Froghair INT
5.0
4.7
3.0
4.2
Annual Rye
5.0
4.3
2.7
4.0
Non-seeded check
--
1.0
1.0
1.0
TEST MEAN2
6.3
6.2
6.0
6.1
LSD VALUE3
0.8
1.1
1.1
0.6
Density scores 1-9, 1=dead, 9=best possible. Values are the means of three replications.
Test Mean = mean of all entries on each test date.
3
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are
significantly different from each other.
2
Table 10. Mean density scores1 for Fall/Winter 1996-1997 Overseed Trials, University of Arizona.
ENTRY
1
MAR 26
APR 15
JUNE 6
SPRING AVG.
Roadrunner PR
7.0
7.7
8.0
7.6
EP-20 PR
8.0
6.7
7.7
7.4
2-DLM PR
7.3
7.7
7.3
7.4
WX4-140 PR
8.0
7.0
7.3
7.4
Citation III PR
7.3
7.3
7.7
7.4
APRX-PR
7.7
7.0
7.0
7.2
LPQ-N3 PR
7.0
7.3
7.3
7.2
Charger II PR
6.7
7.3
7.3
7.1
84-91 PR
7.3
7.3
6.7
7.1
WX3-92 PR
7.3
6.7
7.0
7.0
Gator-II PR
7.0
6.7
7.0
6.9
Mix #2 PR
7.0
6.7
7.0
6.9
93-7 PR
6.7
6.3
7.3
6.8
92-4 PR
6.0
7.0
7.0
6.7
Mix #1 PR
6.7
6.7
6.3
6.6
93-3 PR
6.0
6.0
7.7
6.6
MVF 4-1 PR
6.3
6.7
6.7
6.6
Elf PR
6.7
6.3
6.3
6.4
Partner PR
6.7
6.0
6.3
6.3
Non-seeded check
4.7
6.0
7.3
6.0
Hybrid X-NC INT
5.0
5.3
5.3
5.2
Hybredium INT
4.7
4.3
3.7
4.2
Froghair INT
3.3
4.3
3.3
3.7
Annual Rye
3.0
4.0
2.3
3.1
TEST MEAN2
6.4
6.4
6.5
6.5
LSD VALUE3
1.2
1.4
1.6
1.0
Density scores 1-9, 1=dead, 9=complete uniformity. Values are the means of three replications.
Test Mean = mean of all entries on each test date.
3
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are
significantly different from each other.
2
Table 11. Mean texture1 scores for Fall/Winter 1996-1997 Overseed Trials, University of Arizona.
ENTRY
1
DEC 18
JAN 27
FEB 26
WINTER AVG.
APRX-PR
8.0
7.0
7.7
7.6
Gator-II PR
7.7
7.0
7.7
7.4
WX4-140 PR
7.7
7.3
7.3
7.4
2-DLM PR
7.0
7.0
8.0
7.3
Citation III PR
6.7
7.3
7.7
7.2
EP-20 PR
7.7
7.0
7.0
7.2
84-91 PR
7.3
7.0
7.0
7.1
Roadrunner PR
7.3
7.0
7.0
7.1
MVF 4-1 PR
7.0
6.7
7.7
7.1
LPQ-N3 PR
7.0
7.0
7.0
7.0
Elf PR
7.7
6.3
6.7
6.9
93-7 PR
6.7
7.0
7.0
6.9
WX3-92 PR
6.7
6.7
7.3
6.9
Mix #2 PR
6.7
6.7
7.0
6.8
Mix #1 PR
7.0
6.3
6.7
6.7
Charger II PR
6.7
6.3
7.0
6.7
93-3 PR
6.3
6.3
7.3
6.7
Partner PR
6.3
7.0
6.0
6.4
92-4 PR
6.0
6.7
6.3
6.3
Hybrid X-NC INT
5.7
5.3
5.0
5.3
Hybredium INT
4.7
4.7
3.3
4.2
Froghair INT
5.0
4.0
2.7
3.9
Annual Rye
4.7
4.0
2.7
3.8
Non-seeded check
--
2.0
1.7
1.8
TEST MEAN2
6.7
6.2
6.3
6.3
LSD VALUE3
1.2
1.1
1.3
0.8
Texture scores 1-9, 1=dead, 9=finest. Values are the means of three replications.
Test Mean = mean of all entries on each test date.
3
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are
significantly different from each other.
2
Table 12. Mean texture scores1 for Fall/Winter 1996-1997 Overseed Trials, University of Arizona.
ENTRY
1
MAR 26
APR 15
JUNE 6
SPRING AVG.
EP-20 PR
8.3
7.3
7.0
7.6
2-DLM PR
7.7
7.7
7.0
7.4
84-91 PR
7.3
7.7
7.0
7.3
Citation III PR
7.0
8.0
7.0
7.3
WX4-140 PR
8.0
7.0
6.7
7.2
Roadrunner PR
7.3
7.0
7.3
7.2
APRX-PR
7.3
7.3
7.0
7.2
WX3-92 PR
6.7
7.0
6.7
6.8
Mix #2 PR
7.0
6.7
6.7
6.8
Elf PR
7.0
7.0
6.3
6.8
Charger II PR
7.0
7.3
6.0
6.8
Gator-II PR
7.3
6.7
6.0
6.7
LPQ-N3 PR
7.3
7.0
5.7
6.7
93-7 PR
7.3
6.7
5.7
6.6
MVF 4-1 PR
6.3
7.3
6.0
6.6
Mix #1 PR
6.7
6.3
6.0
6.3
92-4 PR
6.3
6.0
6.3
6.2
Partner PR
6.0
6.3
5.7
6.0
93-3 PR
6.3
6.0
5.0
5.8
Non-seeded check
5.3
5.3
6.0
5.6
Hybrid X-NC INT
5.0
6.0
4.0
5.0
Hybredium INT
3.7
5.0
3.3
4.0
Froghair INT
3.0
5.0
2.7
3.6
Annual Rye
3.7
4.3
2.7
3.6
TEST MEAN2
6.5
6.6
5.8
6.3
LSD VALUE3
1.1
1.0
1.3
0.8
Texture scores 1-9, 1=dead, 9=finest. Values are the means of three replications.
Test Mean = mean of all entries on each test date.
3
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are
significantly different from each other.
2
Table 13. Percent stressed turf (heat/mow stress) and percent plot bermudagrass 1996-1997 Overseed Fairway Trials,
University of Arizona. June 6, 1997.
ENTRY
1
% STRESSED TURF1
ENTRY
% BERMDAGRASS2
Hybredium
75
Non-seeded check
100
Froghair
66
Annual Rye
78
Annual Rye
61
Hybredium INT
43
Hybred X-NC
13
Froghair INT
39
EP-20 PR
8
WX3-92 PR
28
Mix #1
8
2-DLM PR
24
93-7
5
APRX-PR
23
WX4-140
5
84-91 PR
22
Gator-II (rupr)
5
Gator-II PR
22
LPQ-N3
5
Roadrunner PR
20
MVF 4-1
4
LPQ-N3 PR
16
APRX-PR
4
Mix #2 PR
16
Mix #2
4
EP-20 PR
15
93-3
3
Partner PR
15
Partner
3
Citation III PR
14
Elf
2
WX4-140 PR
13
WX3-92
2
92-4 PR
13
Roadrunner PR
2
93-7 PR
13
Charger II PR
2
Charger II PR
11
Citation III PR
1
Hybrid X-NC INT
11
2-DLM
1
MVF 4-1 PR
11
84-91 PR
1
93-3 PR
10
92-4
1
Mix #1 PR
8
Non-seeded check
1
Elf PR
8
TEST MEAN3
12
24
LSD VALUE4
11
22
Percent stressed turf (0-100%). Percent showing heat and/or mowing stress values are the mean of three
replications.
2
Percent bermudagrass (0-100%). Values are the mean of three replications.
3
Test Mean = mean of all entries on each test date.
4
LSD Value = LSD mean separation statistic. Entry means which differ in value greater than the LSD value are
significantly different from each other.
Appendix Table -AOverseed Entries, 1996-1997 Overseed Trials, University of Arizona
ENTRY NAME
SEED RATE LBS./1000 FT2
COMPOSITION
APRX
20
Experimental perennial ryegrass
Gator II
20
Perennial ryegrass
WX3-92
20
Experimental perennial ryegrass
WX4-140
20
Experimental perennial ryegrass
Mix #1
20
40% Seville perennial ryegrass
40% Vivid perennial ryegrass
20% Cathedral II perennial ryegrass
Mix #2
20
20% Cathedral II perennial ryegrass
40% Vivid perennial ryegrass
20% Cathedral perennial ryegrass
20% Seville perennial ryegrass
Pic 84-91
20
Experimental perennial ryegrass
Hybrid X-NC
20
Experimental intermediate ryegrass
LPQ-N3
20
Experimental perennial ryegrass
Hybredium
20
Experimental intermediate ryegrass (SCH-96)
Elf
20
Perennial ryegrass
Partner
20
Perennial ryegrass
EP-20
20
Experimental perennial ryegrass
Roadrunner
20
Perennial ryegrass
Citation III
20
Perennial ryegrass
Charger II
20
Perennial ryegrass
2-DLM
20
Experimental perennial ryegrass
92-4
20
Experimental perennial ryegrass
93-3
20
Experimental perennial ryegrass
93-7
20
Experimental perennial ryegrass
MVF 4-1
20
Experimental perennial ryegrass
Froghair
20
Intermediate ryegrass
Annual
20
Annual ryegrass
Unseeded check
--
Hybrid bermudagrass
Perennial ryegrass = Lolium perenne
Annual ryegrass = Lolium multiflorum
Intermediate ryegrass = Lolium multiflorum x Lolium perenne