摘要
为研究化学药剂诱导玉米孤雌生殖获得纯系的可操作性,选取6个自交系组建唐四平头群体,从不同诱导时间和不同化学药剂2个方面探讨最佳诱导条件,并对孤雌生殖系后代进行稳定性和配合力分析。结果表明:最佳诱导时间为雌穗吐丝3d,诱导率为0.098%;0.20mg·kg-1 Col诱导率最高,诱导率为0.192%,比对照(0.023%)高8.3倍;通过田间表型鉴定及自交,共获得玉米孤雌株系112份;从各个组合一般配合力和特殊配合力的相对平均值来看,P1亲本中T239和T298特殊配合力表现最好。
In order to study the operationally of the pure line of maize through the chemical induced parthenogenetic method,taking six inbred lines form Tangsipingtou groups as materials,two aspects of different time and different chemicals induced were studied to explore optimum induced condition,parthenogenetic progeny of stability and combining ability were analyzed.The results showed that the best inducement time for chemical was on the third day of spike and the induction rate was 0.098%;0.2mg·kg-1 Col induced the highest rate,induction rate was 0.192% which was 8.3times than control（0.023%）;through field phenotypic identification and selfing,a total of 112 copies of corn maize parthenogenesis were received;From relative mean value of general combining ability and special combining ability of each combination,the yield of T239 and T298had the best general marth cooperation.
出处
《黑龙江农业科学》
2015年第10期10-13,共4页
Heilongjiang Agricultural Sciences
关键词
玉米
孤雌生殖
化学药剂
配合力
maize
parthenogenesis
chemical recipe
combining ability
作者简介
王俊强（1981-），男，黑龙江省齐齐哈尔市人，硕士，助理研究员，从事玉米育种研究。E—mail：august-wjq@163．com。
