摘要
2008年在美国阿肯色大学潘布拉夫分校农场（海拔70．7m），对美国生产广泛应用的3个水稻品种和20个育成的水稻新品系进行了栽培试验。结果表明：多数品种和品系在其抽穗前后，受到高温（≥35℃）的影响，表现结实低，产量下降。但仍有1个推广品种和6个新品系表现了良好的耐高温性，结实较好（70．4％～87％），产量较高（7018．8～9881．3kg／hm^2）。这些品种和品系可在高温的条件下进一步试验和示范应用。
A rice yield trial was conducted to investigate the effects of high temperature on the yields of 3 rice cultivars and 20 new strains at UAPB （University of Arkansas at Pine Bluff） farm, with an elevation of 70.7 m, in 2008. The results showed that the yields of the most cultivars and new strains were reduced for the high temperature at rice reproductive stage. However 1 cultivar and 6 new strains showed good tolerance to high temperature, and with the yields of 7 018.8-9 881.3 kg/ hm^2. The grain setting rate of those cultivar and strains were 70.4%-87%. These 6 new breeding strains may be used for research of rice production under high temperature condition in the future.
出处
《贵州农业科学》
CAS
北大核心
2009年第7期26-29,共4页
Guizhou Agricultural Sciences
关键词
水稻
生殖期
高温
产量
rice
reproductive stage
high temperature
yield
