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一、目的沙打旺无限开花,种子成熟不一致,荚果易裂,种子易落,后期植株易倒伏,因此大田草种收获困难,种子浪费严重。目前在沙打旺的草种生产中普遍采用人工剪收法,此法收种成本高,践踏严重,收种不易及时,耗损率可达50%以上。为了降低成本、减少浪费,增加种子产量,对沙打旺开花结子规律进行探讨,寻找其适宜的采种时期及其简便方法,为此,我们于1980年和1981年在河南省宁陵县草种场和我所观察的情况及结
First, the purpose of sand flowering infinite blossom, inconsistent seed maturity, pod easy to crack, easy to fall off the seeds, the late plant lodging, the field of grass grasses difficult to harvest, serious waste of seeds. At present, artificial straw harvesting is widely used in the production of gramineous plants. This method has the disadvantages of high cost of receiving seeds, serious trampling, difficult and timely harvesting, and a loss rate of over 50%. In order to reduce the cost, reduce the waste, increase the seed yield, explore the law of flowering and fruiting, and find the suitable period of seed-picking and its convenient method. For this reason, in 1980 and 1981 in Ningling County, Henan Province, Field and what I observed and knot