A STUDY ON THE HEREDITY OF PHOTOSYNTHETIC PRODUCTION RATE IN CORN

doi:10.3321/j.issn:1000-7091.1987.03.003

Abstract

Abstract: By determing the photosynthetic production rates in the 46 hybrids and 21 parental inbred lines,the results show that the dominancy of average photosynthetic production rate in F1 is 16.4%;when the parent of high photosynthetic production rate is used as female parent,the dominancy of the photosynthetic production rate in F1 is over its parent by 8.8%,otherwise,used as male parent,by 0.9%.The hereditary capacity of female parent is 11 times greater than that of male.The hereditary capacity of low photosynthetic production rate in parent is 1.6 times greater than that ot high,the additive hereditary capacity reaches 42.1% in parent of low pho tosynthetic production rate used as female.Therefore,it is the best combination that parent of high photosynthetic production rate used as female is combined with that of low.

Key words: Corn, Photosynthetic production rate, Hybrid vigor, Hereditary capacity

Sun Jingzhang, Zheng Yaozhen. A STUDY ON THE HEREDITY OF PHOTOSYNTHETIC PRODUCTION RATE IN CORN[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1987, 2(3): 13-17. doi: 10.3321/j.issn:1000-7091.1987.03.003.

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