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近年来,汕优63制种在各地的面积一直很大,有些单位和农户在母本种子紧缺时盲目使用低纯度种子制种,抽穗期又不能及时去杂,配制出的杂交种纯度很低,给大田生产造成了很大损失。针对此种情况,我们用了两年时间进行汕优63制种不同母本纯度与去杂方法对杂交种纯度影响的试验,初步明确和掌握了生产上可以应用的最低纯度母本及穗期最佳去杂方法。 1 材料与方法
In recent years, the Shanyou 63 seed production in various areas has been very large, some units and farmers in the shortage of the mother of the seeds blindly use low-purity seed production, heading can not be timely to miscellaneous, preparation of hybrids of very low purity , Caused a great loss to the field production. In view of this situation, we spent two years to Shanyou 63 different varieties of female parent Purity and impurity method hybrid purity test, the initial clear and mastered the production of the lowest purity can be applied to the mother and the ear The best method to go to miscellaneous. 1 materials and methods