优质杂稻中优117在贵州的种植表现及栽培技术

Performance of Zhongyou 117(a Quality Hybrid Rice Variety) and Its Cultivation Technique in Guizhou

优质杂稻新组合中优117在贵州种植的表现:农艺性状好,生长优势强,米质优,产量高,适应性广。2005-2006年在贵州水稻区试中,平均产量达650.69 kg/667 m2,比对照(Ⅱ优838)增产9.44%。其生育期155 d,株型松紧适中,株高116.75 cm,结实率74.91%;食味品质综合分优于对照;栽培上要培育壮秧,合理密植,科学施肥、综合防虫治病,并合理布局品种,避开稻瘟病区和海拔1 200 m以上秋风冷害频繁地区。

Zhongyou 117 is a new hybrid rice variety with better agronomic characters, strong growth vigor, quality rice, high yield and wide adaptability in Guizhou. The average yield reached 650.69 kg/667 m^2 , 9.44% higher than II You 838 （CK） in the regional tests from 2005 to 2006. The growth period, plant height and setting rate of Zhongyou 117 is 155 d, 116.75 cm and 74.91% respectively and its rice quality is better than CK. The cultivation measures for Zhongyou 117 should include culturing healthy seedlings, proper close planting, rational fertilization, comprehensively controlling diseases and pests, rational varieties distribution and avoiding planting in rice blast areas and areas at an elevation of above 1200 m.