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The Effect of Moisture Stress on the Yield and Yield Components of Several Wheat Cultivars and their F 1 Hybrids
Author(s) -
Labuschagne M. T.,
Deventer C. S.
Publication year - 1992
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1992.tb00993.x
Subject(s) - yield (engineering) , moisture stress , cultivar , moisture , agronomy , hybrid , water content , field experiment , kernel (algebra) , mathematics , biology , chemistry , materials science , geotechnical engineering , organic chemistry , combinatorics , metallurgy , engineering
The effect of moisture stress on yield and yield components of five winter wheats and their F 1 , hybrids were investigated by maintaining the material at 80 % and 50 % field capacity respectively. Yield, kernel number, and kernel mass of the secondary tillers were affected severely by moisture stress. Kernel number and kernel mass of both primary and secondary tillers were correlated to yield significantly (r > 0.75) at both moisture levels. The rankings of the characters most significantly correlated to yield remained much the same at moisture levels despite a significant cultivar X moisture level interaction.