小麦粒重形成的气象条件研究Ⅰ 粒花乳熟期适宜灌浆的气象条件分析

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试验结果表明 ,小麦粒花期平均日较差和日照时数是影响该发育期灌浆速度的主要因子 ,温度和相对湿度是次要因子 ;小麦乳熟期的灌浆速度和最大灌浆速度主要受制于该发育期日照时数、日较差、平均温度和相对湿度 ,前两者为正效应 ,后两者呈负效应 ;同时指出了小麦粒花期和乳熟期适宜灌浆的综合气象指标。生产上采取“一早二保三补”的栽培措施 ,有利趋利避害 ,增强麦株后期活力 ,提高粒重。 The results showed that the average daily inflorescence of wheat and the sunshine duration were the main factors that affected the grain filling rate during the developmental period. Temperature and relative humidity were the secondary factors. The grain filling rate and the maximum grain filling rate during milky milky day were mainly controlled by The sunshine duration, the diurnal variation, the average temperature and the relative humidity during the developmental period were the positive ones and the latter two ones were negative. The meteorological indexes suitable for grain filling and milky ripening were also pointed out. Take the production of “one early morning, two guarantees three subsidies” cultivation measures conducive to profit and avoid disadvantages, enhance the late wheat vitality and improve grain weight.
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