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Winter Hardiness in Oat Populations Derived from Reciprocal Crosses 1
Author(s) -
Muehlbauer F. J.,
Marshall H. G.,
Hill R. R.
Publication year - 1970
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/cropsci1970.0011183x001000060010x
Subject(s) - biology , hardiness (plants) , transgressive segregation , avena , heritability , reciprocal , resistance (ecology) , poaceae , reciprocal cross , horticulture , botany , agronomy , quantitative trait locus , genetics , cultivar , hybrid , gene , linguistics , philosophy
Significant differences in freezing resistance and winter hardiness occurred between the F 3 populations of certain reciprocal crosses in oats ( Avena sativa L. and A. byzantina K. Koch). Heritabilities were high and selection for both freezing resistance and winter hardiness should be effective. Specific combining ability of parents and differences among F 3 lines within crosses were important sources of variation for winter snrvival, but general combining ability, maternal effects, and reciprocal effects over all populations were relatively unimportant. The contribution of parents was consistent over locations, but lines within crosses were inconsistent over locations. Transgressive segregation for winter hardiness was common in the F 3 populations derived from crosses between the winter and spring parents.