为筛选适合湖南双季稻区冬季种植的双低早熟油菜品种,2010 ～2011年在长沙引进12个油菜品种进行比较试验.结果表明:青杂3号和青杂7号生育期最短,为195 d,比对照(杂1613)早4d,但产量较低,而G-11产量最高,达3 122.55kg,/hm2,比对照增产18.76％,生育期比对照短2d.通过对12个参试品种的综合考察,2010 - 14、早0902、G-7和G-11产量优势明显,早熟性强,适宜在湖南地区种植.%Twelve rapeseed varieties introduced from several institutes were used for comparison test in order to understand the related traits of early - maturing Brassica napus L. and screen early - maturing double - low rapeseed varieties suitable for double cropping rice areas of Hunan. The results showed that growth duration of Qingza 3 and Qingza 7 was shortest, 195 days, which was earlier 4 days than CK, while their yield was lower because of many reasons. Yield of G -11 was highest, 3 122.55kg/hm2, which was increased by 18. 76% than CK, and it' s growth duration was shorter 2 days than CK. Comprehensive evaluation on ail tested varieties showed that 2010 - 14, Zao0902, C - 7 and G -11 were suitable for Hunan province because of high yielding and early - maturing.
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