摘要
广西地处热带,是双季稻区。根据气候特点,全区划分为桂南、桂中、桂北及高寒山区四个稻作区。解放四十年来,水稻栽培品种的演变,经历了高秆农家品种当家,高秆、矮秆品种交替,矮秆品种当家,矮秆品种更换四个时期。本文主要研究当地水稻主栽品种的演变过程,分析种质的特点与亲本血缘的关系,总结育种的经验与教训,提出今后常规育种工作的设想。
Guangxi Zuang Autonomous Region is situated in the subtropics, belonging to the double-cropping rice area. According to the climatic characteristics, Guangxi could be divided into four rice plantaion areas: the South Guangxi, the Central Guangxi, the North Guangxi and the Cold Highland Areas. Since liberation, during the past forty years, the rice production has undergone four periods in Guangxi for u-sing the rice cultivars: the period dominated by the local long-stalked varieties, the period alternated by the long or short-stalked varieties, the period dominated by the short-stalked varieties and the period in which the old short-stalked varieties were replaced by the new ones. In this article, the developmental processes of the main rice cultivars iu Guangxi and the relationship between the characteristics of the rice germplasm and the parental consanguinities are discussed, and the ideas for improving the conventional rice breeding are suggested.
出处
《西南农业学报》
CSCD
1989年第2期7-14,共8页
Southwest China Journal of Agricultural Sciences
关键词
水稻
品种
系谱
广西
Rice
Regional planning of rice plantation
Pedigree
Conventional rice breeding
Guangxi
