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Correlation of Factors Affecting Yield in Hard Red Spring Wheat 1
Author(s) -
Bridgford R. O.,
Hayes H. K.
Publication year - 1931
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/agronj1931.00021962002300020002x
Subject(s) - agricultural experiment station , mathematics , horticulture , library science , biology , computer science , agriculture , ecology
In planning for the production of an improved variety, the smalI grain, breeder may cross two or more varieties with the hope of combining in a single variety the desirable characters of several. It is a common practice to use as one parent, at least, a variety which excels in yielding ability as determined by yield trials. The other parent should be selected because it contains a certain desired character or characters which are lacking in the standard variety! Yield in small grains is apparently a complex character influenced .by such factors as plumpness of grain, number of kernels per spike or panicle, reaction to disease, lodging, number of spikes or panicles per unit area, and period of maturity. Insufficient information is available concerning the extent to which various characters influence yielding ability and the extent to which two or more of these agronomic characteristics are conditioned by the same genetic factor or factors. This report comprises a statistical study of the relation between various plant characteristics and yielding ability of hard red spring wheat grown in rod rows at the Morris, Minnesota, Branch Experiment Station during the crop season of ~929.