Studies on Feasibility for Utilization of Improved Lines of Maize Huangzao 4

doi:10.3321/j.issn:1000-7091.1995.z1.005

Abstract

Abstract: Combining ability of Huangzao 4 and its nine improved line hybrids and the yields of these lines per se were evaluated in the present paper.It was indicated that general combining ability for yield per plant of Ji 35 was the highest among the nine improved lines,while the variance of special combining ability was high for Huangzhao 4-15 and D Huang 212,and middle for Ji 35.Among the improved hybrids.it was only the Ji 35×Ye 107 that increased significantly in yield, compared with the original hybrid.Among the improved lines the yields of Ji 45,Ji 35 and D Huang 212 were remarkably higher than that of Huangzao 4.Disease-resistance was also improved to some extend for all of the lines tested.It is necessary for the improved hybrids to be tested before it is spread for commercial purpose.

Key words: Maize, Huangzao 4, Improved lines, Combining ability, Improved hybrids

CLC Number:

S513

Zheng Jide, Cui Shaoping, Li Hongjie. Studies on Feasibility for Utilization of Improved Lines of Maize Huangzao 4[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1995, 10(S1): 22-27. doi: 10.3321/j.issn:1000-7091.1995.z1.005.

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