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A Six‐Parent Diallel Cross Analysis for Protein in Avena sterilis L. 1
Author(s) -
Ohm H. W.,
Patterson F. L.
Publication year - 1973
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/cropsci1973.0011183x001300010009x
Subject(s) - diallel cross , biology , heterosis , avena , cultivar , hybrid , epistasis , agronomy , zoology , horticulture , genetics , gene
Six Arena sterilis L. introductions were crossed in a diallel to study groat protein level and to estimate heterosis and types of genetic effects for percent protein and protein yield. Parents, one set of F l 's, and two adapted commercial check cultivars were grown for three seasons (1969‐1971) along with reciprocal F l 's in 1970 and with F 2 's in 1970 and 1971. The A. sterilis parents averaged 25.6% groat protein and the two check cultivars, 17.9% groat protein. The adapted check cultivars produced twice as much seed yield, which resulted in a higher yield of protein. Percent groat protein in the F 1 and F 2 was similar to the midparent values. Heterosis for protein yield averaged 10.7% in the F 1 but was much reduced in the F 2 generation. Reciprocal F 1 hybrids did not differ for percent groat protein or protein yield. General combining ability predominated for all characters. Partial dominance occurred for percent groat protein in this group of genotypes. Epistasis and environmental factors were important for protein yield. The relationship between protein and protein yield was generally not significant, but tended to be negative.