应用AMMI模型评价水稻区试点对品种的判别力

Evaluation of the Discriminating Ability of Locations for Rice Cultivars Trial by AMMI Model

以AMMI模型中达显著水平的主成分轴上的环境分量Dj作为衡量区试点对品种的判别力的参数指标 ,对 1999年南方稻区水稻区试早籼早中熟组 16个区试点进行了分析。依据Dj值大小 ,可将 16个区试点对品种的判别力大致分为强。

The AMMI model was used to analysis the locations for crop cultivars trial with parameter D j which was got from the environmental value of significant IPCA. The discriminating ability of 16 locations of early season indica rice cultivars trial in southern China in 1999 was analysed. The discriminating ability of the 16 locations could be divided into high, middle and general levels according to D j value.