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Interrelation in Common Winter Wheat of Cold Hardiness and Emergence in Dry Soils 1
Author(s) -
Morrison K. J.,
Patterson F. L.,
Bula R. J.,
Nyquist W. E.
Publication year - 1981
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/agronj1981.00021962007300060011x
Subject(s) - hardiness (plants) , heritability , agronomy , biology , germination , winter wheat , cultivar , common wheat , moisture stress , sowing , seedling , poaceae , moisture , horticulture , geography , biochemistry , genetics , meteorology , gene , chromosome
Rapid emergence is important for wheat ( Triticum aestivum L. em Thell.) establishment in semiarid winter wheat areas. Ability to germinate and emerge under low moisture stress may involve physiological processes in common with those of cold hardiness of young seedlings. A germinated‐seed technique was used to determine whether a relationship exists between cold hardiness of very young plants and emergence ability of winter wheat under moisture stress. Four parental cultivars and nine populations from crosses among them were used to evaluate these relationships. Cold hardiness measured by percent survival and emergencerate index had relatively high heritability values. Phenotypic and genotypic correlation coefficients between measures of cold hardiness and emergence ability suggest that these responses in winter wheat are controlled in small part by the same genetic system.