抗旱节水型玉米种质的构建及鉴定  

Construction and Identification of Germplasm for Drought Resistant Water-saving Maize

作　　者：张文忠[1] 王振华[1] 宋殿珍[1] 芦明[1] 王慧慧[1] 杨国英[1] 申海斌[1] 

机构地区：[1]山西省农业科学院谷子研究所,山西长治046011

出　　处：《安徽农业科学》2015年第29期127-129,共3页Journal of Anhui Agricultural Sciences

摘　　要：随着全球性缺水问题日益尖锐,干旱对农作物造成的损失在所有非生物胁迫中占首位.我国约有50％以上的土地处于干旱缺水状态,严重制约着我国农业和经济的发展.近年来,由于干旱缺水导致的玉米减产约占玉米总产量的20％～ 30％.为充分挖掘玉米的抗旱节水特性,采用杂交、复合杂交、回交等多种手段对现有玉米种质资源进行改良,并进行抗旱性鉴定,培育出具有抗旱节水特性突出、一般配合力高、适应性广的2个类群F5Q和F5P,对于提高玉米的抗旱性和水分利用效率及新品种选育具有重要意义.With the growing problem of water shortage in the world, the loss caused by drought is the first place in all non biological stress. About more than half of China＇ s land is dry and lack of water, which seriously restricts the development of agriculture and economy in China. In recent years, the corn yield caused by drought and water shortage is about 20% - 30% of the total output. To fully exploit the maize drought resistance characteristics, this study through the improvement of existing corn germplasm resources, and drought resistance identifica- tion based on hybrid composite cross and backcross, bred with drought resistance and water saving characteristic is outstanding, generally with high power, wide adaptability of two groups F5 Q and F5 P. To improve the drought resistance of maize and water use efficiency and breeding of new varieties has important significance.

关 键 词：玉米 种质资源 抗旱节水 新品种选育 

分 类 号：S502.4[农业科学—作物学]