摘要
根据2001—2008年国家水稻品种区试、审定及推广情况统计资料,对长江中下游稻区籼型两系与三系杂交水稻组合的比较分析表明,两系组合总体上产量高于三系、米质略优于三系、抗病虫性与三系相当,但不同熟期类型表现不尽相同;审定组合数、推广种植面积以三系为主,但两系审定组合数、推广种植面积及所占比率呈现逐步提高的趋势。
Based on the statistical data of national rice variety regional trials, registration and application in China from 2001 to 2008, the registration, yield, resistance, grain quality and extension between two-line and three-line indica hybrid rice in the middle and down area of the Yangtse Valley were compared. It was found that the yield of two-line hybrid rice was generally higher than that of three-line hybrid rice, the grain quality of two-line hybrid rice was a little hit superior to that of three-line hybrid rice, and the resistance of main diseases and pests of two-line hybrid rice was similar to that of three-line hybrid rice, but the performance varied with different types of rice to some extent. Most of registry combinations were three-line type and the planting area of three-line hybrid rice was much more than that of two-line hybid rice. However, the registry number, planting area of two-line hybrid rice and the rate of two-line hybrid rice gradually increased from 2001 to 2008.
出处
《杂交水稻》
CSCD
北大核心
2009年第5期61-65,共5页
Hybrid Rice
基金
中央级公益性科研院所专项资金项目(2006RG002
2006RG003)
农业部国家水稻品种区域试验项目(2001-2008)
关键词
长江中下游稻区
两系杂交水稻
三系杂交水稻
比较分析
the middle and down area of the Yangtse Valley
two-line hybrid rice
three-line hybrid rice
comparison analysis
