掖单2号制种花期不遇的补救措施

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掖单2号(掖107×黄早4)玉米单交种,高产、抗病,国内需求量很大,目前已打入国际市场。今年我县种子公司在西八里乡阎家房村采取与蔬菜套种的方式,制种1200亩,在父本偏晚的情况下,通过积极补救,除亩产1500公斤青蒜外,种子亩产仍达250公斤左右,最高单产达450公斤,收到了良好的经济效益。在制种过程中,由于掖107苞叶过长,吐丝缓慢,而黄早4散粉集中,对气候条件要求严格,容易出现花期不遇。现将我们采取的几种补救措施介绍如下: 一、安排采粉区。在安排生产计划时,要安排 Yedan 2 (Ye 107 × Huang Zao 4) corn single cross, high yield, disease resistance, domestic demand is great, has now entered the international market. This year, our county seed company adopted a vegetable intercropping method in Yanjiabang Village, Xibalili Township. Seed production was 1,200 mu. In the case of late male parents, through active remedial measures, in addition to 1,500 kg of green garlic per mu, the seed mu yield still reached 250 Kg, the highest yield of 450 kg, received a good economic returns. In the process of seed production, due to tuck 107 leaves too long, slow silking, and yellow as early as 4 scattered powder concentrated on the climatic conditions demanding, prone to flowering not happen. Now we take several remedial measures introduced as follows: First, arrange powder area. Arrange the production plan, to be arranged
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