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A Geometrical Approach to Yield Models in Upland Cotton ( Gossypium hirsutum L.) 1
Author(s) -
Maner B. A.,
Worley S.,
Harrell D. C.,
Culp T. W.
Publication year - 1971
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1971.0011183x001100060042x
Subject(s) - lint , gossypium hirsutum , yield (engineering) , biology , fiber crop , malvaceae , agronomy , selection (genetic algorithm) , horticulture , gossypium , botany , mathematics , physics , artificial intelligence , computer science , thermodynamics
Yield models were developed for selected Upland cotton ( Gossyplum hirsutum L .) genotypes. Yield was equated with the volume of a rectangular parallellepiped having the following dimensions: bolls per square meter (X), seeds per boll (Y), and seed cotton per seed (Z). Axis (Z) was divided into its two fractions: lint per seed (L) and weight per seed (S). Yield components of selected genotylpes were expressed as a percentage of ‘Coker 201,’ when the variance was set at zero. BolIs per square meter (X axis) had the gxeatest influence on yield. We expect that the greatest gain in yield improvement should come from exerting selection pressure on this character. Concurrent selection pressure should also be placed on seeds per boll (Y) and seed cotton per seed (Z) to maintain these components at levels similai to those of leading commercial varieties grown in the ecological area.