CAJ | 학술논문

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3 d ,诱导率为0 .098% ;0 .20 mg·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T 239和T 298特殊配合力表现最好.
위연구화학약제유도옥미고자생식획득순계적가조작성 ,선취6개자교계조건당사평두군체 ,종불동유도시간화불동화학약제2개방면탐토최가유도조건 ,병대고자생식계후대진행은정성화배합력분석.결과표명 :최가유도시간위자수토사3 d ,유도솔위0 .098% ;0 .20 mg·kg-1 Col유도솔최고 ,유도솔위0 .192% ,비대조(0 .023% )고8 .3배 ;통과전간표형감정급자교 ,공획득옥미고자주계112빈 ;종각개조합일반배합력화특수배합력적상대평균치래간 ,P1친본중T 239화T 298특수배합력표현최호.
In order to study the operationally of the pure line of maize through the chemical induced parthenoge-netic 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 sta-bility 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 .2 mg·kg-1 Col induced the highest rate ,induc-tion rate was 0 .192% which was 8 .3 times 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 T298 had the best general marth cooperation .