Studies on the Genetic Model of Main Quality Characters in Wheat

doi:10.3321/j.issn:1000-7091.1996.03.002

Abstract

Abstract: A diallel cross involving 6 wheat parents was made by using Griffing methods to study the genetic model of grain protein and other main quality characters.The genetic parameters of the traits involved were estimated.The results indicated that (1) the inheritance of grain protein content,test weight,dry gluten content,wet gluten content,falling number and sedimentation value fit the model of additive dominance.(2)The high value of falling number was related to recessive genes,and the low value was related to dominant genes.The high value of grain protein content,test weight,wet gluten content,dry gluten content and sedimentation value were related to dominant genes,and the low value was related to recessive genes.(3)Except that the inheritance of sedimentation value performed over dominant gene,the rest were mainly controled by the additive gene,and also the mean dominant degree (H₁/D)were less than 1,and performed partial dominance.(4)Except the falling number,the narrow heritability of the rest traits performed higher.It indicated that they could be selected in early generations.

Key words: Wheat, Quality characteristics, Genetic model, Gene effect, Heritability

CLC Number:

S512.101

Huo Qingtao, Lu Debin, Cui Dangqun, Xia Baigen, Zhang Chuanmei. Studies on the Genetic Model of Main Quality Characters in Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1996, 11(3): 8-14. doi: 10.3321/j.issn:1000-7091.1996.03.002.

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