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------------------------------------------------------------------------------TITLE: Plant monitoring techniques for analyzing yield differentiation
between cotton fields and improving crop management.
ACCESSION NO: 20000706653
AUTHOR: Crozat, Y.; Kasemsap, P.;
AU's AFFILIATION: Annual Crop Department, CIRAD, DORAS Centre, Kasetsart
University, Bangkok 10900, Thailand.
SOURCE: Kasetsart Journal, Natural Sciences
Year: 1997 Vol:31 Issue: 5 Pages: 74-82 Ref: 24 ref.
CLASSIFICATIONS:
FF100 Plant Production
FF005
ZZ900 Techniques and Methodology
SUBJECT HEADINGS: cotton; crop management; monitoring; fruiting; yields;
yield correlations;
ORGANISM DESCRIPTORS: Gossypium;
BROADTERM: Malvaceae; Malvales; dicotyledons; angiosperms; Spermatophyta;
plants; South East Asia; Asia; Developing Countries; ASEAN Countries;
GEOGRAPHIC LOCATION: Thailand
LANGUAGE: English
PUBLICATION TYPE: Journal article
ISSN: 0075-5192
------------------------------------------------------------------------------ABSTRACT :
Plant structure components related to variation in yield between 25
cotton fields were investigated in the cotton growing area of Chaibadan
District, Lop Buri Province during 1994 and 1995. Survival of P1 fruits
(first flower bud on a sympodium) of the first-ten fruiting nodes
together with the change in height to node ratio (HNR) were relevant
criteria for analysing yield differentiation. The relevance or this was
validated with yield data from 75 plots surveyed in 1993. It showed that
monitoring the production and survival of P1 fruits, together with the
changes in node number and height of the main stem provided a meaningful
appraisal of the origin and the cause of yield differentiation. From this
type of monitoring, standards were generated with the aim of improving
crop management through a better adjustment of inputs to actual plant
structure.
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