Additional file 2: Analysis of variance table for lowland drought stress experiments conducted with early (E), medium
(M), and late (L) duration lines including means of parents and progenies and P values.
Trait name
Plant height (cm)
Increase of canopy temperature
Canopy temperature
Reduction of NDVI (early stress)
Reduction of NDVI (severe stress)
NDVI
Absolute amount of sap
Bleeding rate (g sap g -1 shoot)
Number of tillers m -2 (mid-stress)
Shoot biomass at mid-stress
Leaf area at mid-stress
Leaf:Stem ratio at mid-stress
Specific leaf area at mid-stress
Days to flowering
Root mass density (0-15 cm)
Root mass density (15-30 cm)
Root mass density (30-45 cm)
Root mass density (45-60 cm)
Percentage deep roots
Grain yield (kg ha -1 )
Number of tiller m -2 at harvest
Number of panicle m -2 at harvest
73
0.33
36
-0.004
169
81
0.4585
0.1133
0.0257
0.0032
5
619
300
204
-0.02
0.40
2.4
0.26
14
11
1098
3
Experiment 1(A)
Mean
Progeny Moroberekan
102
0.34
37
-0.01
-0.02
0.40
2.3
0.34
5
7
540
2
110
95
0.1659
0.1006
0.0818
0.0007
11
180
106
58
Swarna
54
0.37
37
P a
****
****
****
Progeny Moroberekan
73
0.69
34
-0.004 NS -0.003
-0.03 NS -0.001
0.37 NS 0.58
2.3 NS
0.34 ****
14
8
****
****
1103 ****
5 ****
1.5
0.14
12
12
917
1
188
99
****
****
152
86
0.6285 NS 0.3957
0.1017 NS 0.0902
0.0162 NS 0.0266
0.0004 NS 0.0047
3 * 6
311
303
231
****
****
****
1680
257
218
Experiment 1(B)
Mean
91
0.65
35
-0.004
0.003
0.59
1.6
0.19
5
10
652
2
109
95
0.3141
0.1614
0.0408
0.0112
6
950
119
92
Swarna
54
0.72
34
0.00003
-0.004
0.56
1.4
0.15 ****
15
9
1027 ****
2
167
93
0.3024 NS 0.4105
0.0712 *
0.0242
0.0003 **
7
2136 **** 1910
297
259
P
****
****
*
NS
NS
NS
****
****
**
****
****
****
NS
NS
****
****
Experiment 1(C)
Mean
Progeny Moroberekan Swarna
NA NA NA
0.33
34
0.0
0.30
33
0.01
0.34
35
P
NA
**
***
0.01 NS
0.0
0.37
1.2
0.10
12
14
900
1
151
88
0.0827
0.0255
0.0056
6
280
241
-0.05
0.33
1.1
0.08
6
14
680
1
94
93
0.1629
0.0629
0.0251
0.0027
8
1215
114
95
-0.03 NS
0.42 NS
1.3 ***
0.10 ****
15
14
***
****
1095 ****
1 ****
158
92
***
****
0.2332 ***
0.1329 NS
0.0286 NS
0.0037 NS
5 NS
2363 ****
356 ****
286 ****

Spikelet fertility (Percentage by weight)
Weight of 1000 grains (g)
Panicle length at harvest (cm)
Leaf:stem ratio at harvest
59
16
18
0.8
72
25
18
0.6
41
13
18
0.8
****
****
****
**
62
19
19
0.7
67
28
21
0.6
63
17
18
0.9
***
****
****
****
84
19
19
0.6
90
30
20
0.6
NS: Non-significant, NA: Data not available, a: probability of difference between genotypes *, **, ***, **** significant at 5, 1,
0.1, 0.01% P levels, respectively, NDVI: normalized difference vegetation index
86
17
18
0.7
****
****
****
****