我国油菜化学杀雄+细胞质雄性不育的应用研究  

Discussion on Applied Researches of Chemical Hybridizing + Cytoplasmic Male Sterility in Rape Breeding of China

作　　者：尚毅[1] 李殿荣[1] 李永红[1] 张耀文[1] 田建华[1] 

机构地区：[1]陕西省杂交油菜研究中心,陕西大荔715105

出　　处：《西北农业学报》2005年第1期27-29,共3页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：陕西省科学技术研究发展计划项目 ( 2 0 0 2 K0 1 -GZ-1 )

摘　　要：对化学杀雄 +细胞质雄性不育 ( CH+ CMS)的油菜杂种优势利用途径进行了探讨。CH+ CMS不仅具有用药量少、安全、对 CMS的不育性要求低、杀雄彻底、技术难度低易掌握 ,易推广等特点 ,同时克服了 CH杀正常油菜用药量大 ,易产生药害、技术难度高、且杀雄不彻底和 CMS初花期出现微粉的问题。CH+ CMS既可以降低不育系的选择难度 ,易于选出强优势组合 ,又可提高制种纯度 。A new approach using heterosis of rapeseed (Brassica napus L) , Chemical hybridizing+Cytoplasmic male sterility (CH+CMS) was discussed. CH+CMS has the following characters: less dosage of Chemical Hybridizing Agent (CHA) ,safety ,low sterility demand for CMS , thoroughly male sterility induced , low techniques difficulty so easy mastering and releasing widely and so on. CH+CMS could overcome main disadvantages of CH and CMS , such as: medical harm due to higher dosage of CHA, high techniques difficulty as well as un-thoroughly male sterility induced of CH and trace pollen problem of CMS in early blooming period. CH+CMS could not only reduce difficulty of choosing CMS, facilitate getting superiority combinations, but also raise purity of hybrid seeds. So it has good prospects.

关 键 词：油菜 化学杀雄 细胞质雄性不育 CMS 用药量 初花期 杂种优势利用 CH 生药 性要求 

分 类 号：S565.4[农业科学—作物学] S512