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本文研究了不同选择指数用于杂种株行产量选择的实际效果。在较低的选择强度下,不包括产量的特殊指数和两种非特殊指数Ⅰ的实际选择效果,均比直接产量选择法好,而两种非特殊指数Ⅱ相应较差。包括产量指数的实际选择效果则低于或近于对应不包括产量的指数。建议应用不包括产量的指数作株行选择,选择强度以较低为宜。各指数的实际进度均不能由理论进度作可靠的预测。
In this paper, we studied the practical effects of different selection indices on yield selection of hybrid lines. At lower selection intensities, both the special index that does not include yield and the actual selection effect of two non-special index I are better than the direct yield selection method, while the two non-special index II are correspondingly poor. The actual selection effect, including the production index, is below or near the corresponding index excluding production. It is recommended that the application does not include the index of production for plant selection, and the selection of intensity should be lower. The actual progress of each index can not be reliably predicted by the theoretical progress.