杂交油菜新品种黔油22号的丰产稳产性分析

Study on High and Stable Yield and Utilization of New Brassica napus Variety of Qianyou 22

为给黔油22号的推广应用提供科学依据,以2005～2007年贵州省油菜新品种区域试验和生产试验结果为分析资料,采用高稳系数法,结合产量变异系数和适应度,对黔油22号的丰产稳产性进行了分析.结果表明：在2005～2006年、2006～2007年区域试验中,黔油22号的平均产量分别为2 707.60 kg/hm^2、2 972.54 kg/hm^2,分别比对照油研10号增产8.22％、15.90％；高稳系数分别为96.28％、104.19％,均大于对照；产量变异系数分别为2.13％、1.12％,均较小；适应度分别为87.5％、100％,均大于对照.说明,黔油22号是一个高产稳产、丰产性好的杂交油菜新品种,具有较好的广适性,增产潜力大,适宜在长江上游地区种植.

The study aimed to provide evidence for rational utilization of Qianyou 22 in practical production. With the regional experiments resuits of new rape variety in Gaizhou Province in 2005 - 2007 as analyzing data and combined with the yield variation coefficient and fitness, the Qianyou 22 and the control of Youyan 10 were compared by using High Stability Coefficient Method （HSC）. In 2005 - 2007 regional experiment,the average yield of Qianyou 22 were 2 707.60 kg/hm^2 ,2 972.54 kg/hm^2 resp. ,increasing by 8.22% ,15.90% than that of the control;their high stability coefficients were96.28% , 104.19% resp,being all higher than that of the control;their yield variation coefficients were 2.13% ,1.12% resp. ,being low ;fitness were87.5% ,100% resp. ,being all higher than that of the control. Qianyou 22 was a new variety with high and stable yield and good fertility ,which had better wide adaptability ,large increasing production potential and it was suitable to plant in the upper reaches of the Yangtze River producing areas.