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20 0 0年初季 ,在河南驻马店市用 6个黄淮夏大豆后代材料进行日光温室加代繁殖试验。结果表明 ,1月中旬和 2月上旬播种 ,成熟期基本相同 ,均能在 5月下旬至 6月上旬正常成熟。与正常夏播比较 ,日光温室冬繁加代生育期显著延长 ,营养体变小 ,产量降低。虽然冬繁种子的发芽率低于正常夏播的 ,但仍能满足育种要求。本文还分析了冬季加代时气候因子对植株等的影响 ,提出了如何有效利用日光温室进行大豆冬繁加代的方法
In the first quarter of 2000, 6 Huanghuai summer soybean progeny materials were used to carry out the solar greenhouse additive test in Zhumadian, Henan. The results showed that mid-January and early February sowing, the same maturation period, both in late May to early June mature normally. Compared with the normal summer sowing, the growth of winter and spring in the greenhouse was significantly prolonged, the nutrition body became smaller and the yield decreased. Although the germination rate of winter-flowering seeds is lower than that of normal summer sowing, it still can meet the breeding requirements. This paper also analyzes the influence of climatic factors on the plants and so on in the winter plus the generation, and proposes how to make effective use of the solar greenhouse for the addition and subtraction of the soybean