安徽农业大学学报2017，Vol.44Issue(1)：114-118,5.DOI:10.13610/j.cnki.1672-352x.20170208.010
不同生态条件下玉米单倍体自然加倍率及除草剂加倍效果
Effects of the ecological condition and herbicide on chromosome doubling of haploid maize
摘要
Abstract
A low chromosome doubling rate of haploids becomes the limiting factor in maize haploid breeding at present.The purpose of this experiment was to improve the doubling rate of maize haploid in two ecological systems and through the herbicide application.Two herbicides,amiprophos-methyl (APM) and trifluralin at different concentrations with different methods were tested.The 2-year experimental result showed that the natural doubling rate of maize haploids grown in Jiusuo,Hainan Province was much higher than that in Guiyang,Guizhou Province.The doubling rates of haploid Yayu889 and Jingnuo208 were significantly improved with the application of herbicides.The doubling rate was also significantly affected by the haploid genotype.The doubling rate was the highest when APM and trifluralin at 80 μmol/L were applied with the rate of APM treatment being higher than that of trifluralin treatment at the same concentration.There is no obvious difference in the doubling rate between the soaking seed method and the dripping interior leaf whorls from the 3-leaf stage method with the same herbicide.If the natural doubling method was adopted,the haploid of maize should be planted in Jiusuo,Hainan;if herbicide application was adopted,APM at 80 μmol/L should be chosen using the method of dripping interior leaf whorls or seed-soaking for doubling Yayu889 and Jingnuo208 haploids.关键词
玉米/单倍体/自然加倍/除草剂Key words
maize/haploid/natural doubling/herbicide分类
农业科技引用本文复制引用
程江,郑常祥,潘敏娜,陈柔屹..不同生态条件下玉米单倍体自然加倍率及除草剂加倍效果[J].安徽农业大学学报,2017,44(1):114-118,5.基金项目
贵州省农业科学院研究生创新基金项目[黔农科合(创新基金)09010号]资助. （创新基金）
