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The Growth and Yield of Corn. IV. Environmental Effects on Grain Yield Components of Mature Ears 1
Author(s) -
Hatfield A. L.,
Benoit G. R.,
Ragland J. L.
Publication year - 1965
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1965.00021962005700030023x
Subject(s) - yield (engineering) , agronomy , grain yield , moisture , biology , environmental science , inheritance (genetic algorithm) , chemistry , materials science , metallurgy , biochemistry , organic chemistry , gene
Synopsis Corn was grown in 6 environmental combinations in each of 2 years. Grain yield was related to emergence date and to total hours of daylight during the grain formation period. The correlation of ear components with yield and with themselves was drastically affected by environmental factors associated with season of growth and soil moisture. The variations in the numerical values due to environmental changes suggest that ear component analysis in a suboptimum environment is of little value for determining genetic inheritance.