【摘要】 对广西及来源于IRRI的部分南亚国家的深水稻种质进行了分类研究并经耐淹性试验分析和抗稻纹枯病特性鉴定,认为深水稻应属于籼亚种一类有别于普通水稻、陆稻的特异生态种群。极有可能蕴藏其他稻类缺乏的抗稻纹枯病新抗源基因。其耐无氧呼吸能力因种质来源地域而有别。更多还原

【Abstract】 The deep-water rice varieties from the countries of South Asia offered by IRRI and from Guangxi province were analyzed in classification, submerge tolerance and resistance to rice sheath blight during 2000-2003 in Nanning. The results indicated that being different from ordinary submerge rice and up-land rice, the deep-water rice ought to be classified into a special ecologic group under Indica subspecies. The results showed that the group possessed possibly some new resistant factors, which were lack in the rest of rice varieties. And the anaerobic abilities of the deep-water varieties were different in terms of their ecologic origins.更多还原