安徽农业科学Issue(18)：9613-9614,9625,3.
玉米单倍体在春夏不同播期条件下的自然加倍效果研究
Study of the Natural Doubling Effect of Maize(Zea mays L.) Haploid under Different Sowing Times in Spring and Summer
芦连勇 1王海莉 1董文恒 1宋俊乔1
作者信息
- 1. 河南省安阳市农业科学院,河南安阳455000
- 折叠
摘要
Abstract
[Objective] The aim was to study the natural doubling effect of different genotype maize haploid under different sowing times in spring and summer, and provides a reference for applying of maize haploid breeding. [ Method] Haploid grains- to-be obtained by crossing of using different genotypes of maize hybridized combinations, 178/137, Zheng 58/7319, 8102/6213, 478/6231, 7922/TI38, 5312/4122 as female and Gaoyou No. 1 as male were chose according to mark after maturity. Haploid grains-to-be were planted in May 2th and June 15th, 2011, and then shedding rate of flower, sterility natural recovery rate and fruiting plant ratio and so on. [ Result] The different genotypes of maize haploids' natural doubling effect at sowing times in spring and summer had obvious differences: The maximum of shedding rate of flower 57.72%, the minimum 5.83% , the average 31. 81% ; The maximum of self-fertilized seed setting rate 6. 8% , the minimum 3.3% , the average 5.1%. Shedding rate of flower of different maize haploids planting in summer and spring were 34. 24% , 29. 37% respectively, and that of planting in summer was more than that of planting in spring by 4. 87% ; The self-fertilized seed setting rate planting in summer was also higher than that of planting in spring. [ Conclusion ] Summer planting is more conducive to natural doubling of maize haploid.关键词
玉米/单倍体/春播/夏播/自然加倍Key words
Maize/Haploid/Planting in spring/Planting in summer/Natural doubling分类
农业科技引用本文复制引用
芦连勇,王海莉,董文恒,宋俊乔..玉米单倍体在春夏不同播期条件下的自然加倍效果研究[J].安徽农业科学,2012,(18):9613-9614,9625,3.
