三、加大母本行数两年来的实践证明,制种田的父母本行比,对不孕系的败育、授粉等影响很大。现有的不孕系(母本)基本上都是矮秆的,如果恢复系(父本)是高秆的,则邻近父本行的母本败育多、植株矮、授粉差、产量低,中间行的母本表现则相反(如表5)。 Third, to increase the number of mother banks practice over the past two years have proved that the system of farming parents than the line, infertility abortion, pollination and other great influence. The existing infertility lines (maternal) are basically dwarfed. If the restorer line (paternal) is tall, the maternal abortions in the adjacent line will be aborted, with short plants, poor pollination and low yield , The middle row of the mother of the performance of the opposite (as shown in Table 5).