小麦新品种川农16产量评价和分析

Yield Evaluation of New Wheat Cultivar Chuannong 16

利用AMMI模型对2001年和2002年国家小麦区域试验资料进行了分析。结果表明,川农16稳定性和丰产性好,适应性广。采用逐步回归法获得川农16产量的多元回归方程为:y=-415 2685+16 0237x1+7 9396x4+8 0625x5-1 4065x6。结合偏相关和通径分析表明川农16是典型的穗数型品种。其有效穗对产量贡献最大,千粒重和穗粒数次之。有效穗与千粒重易协调,而与穗粒数协调较困难。

The data in state cultivar comparison trials was analyzed through AMMI model. The results indicate that AMMI is a good model to analyze the variety in the regional trial, and Chuannong 16 is the variety with wide adaptability, high yield and higher stability. The equation of the yield of Chuannong 16 is y=(-415.2685)+16.0237x2+7.9396x4+8.0625x5-1.4065x6. The partial correlation and path analysis show that the spike numbers per hectare, compared with other yield components, have more contribution to and more influence on the yield. Therefore, Chuannong 16 is the typical variety with very high spike numbers per hectare.