杂交水稻产量形成与气象关系的模式

来源 :江苏农业科学 | 被引量 : 0次 | 上传用户:hegang520
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构成水稻产量的各个因素均在一定程度上受气象条件的制约。现根据武进县1982和1983两年对汕优2号和泗优2号137块田的观测资料,结合武进县的气象资料,分析和讨论气象条件对杂交水稻产量形成的影响,求得有关模式,并据此探讨常州市杂交水稻栽培的气候年型,供生产参考。 气象条件对有效分蘖期的影响 杂交水稻的分蘖优势强,分蘖穗在总穗中占主要部分,分蘖的发生速度与单株分蘖数对产量的影响甚大,因此有效分蘖期的长短是掌握群体动态与 The factors that make up rice yield are to some extent constrained by weather conditions. Based on the observation data of 137 fields of Shanyou 2 and Siyou 2 in 1982 and 1983 in Wujin County and the meteorological data of Wujin County, the influence of meteorological conditions on the yield formation of hybrid rice was analyzed and discussed. , And to explore the climatic dating of hybrid rice cultivation in Changzhou for reference. The effect of meteorological conditions on the effective tillering stage The hybrid rice has strong tillering ability, tillering spike is the main part of total spike, tillering speed and tillering number per plant have a great influence on the yield. Therefore, the effective tillering stage is the master of group dynamics versus
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