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为了探求玉米种子安全渡夏的贮藏技术,在实验室条件下研究了种子水分和贮藏温度对衰老速度的影响。12.1％～17.8％范围内不同水分的种子密闭在玻璃瓶中,在室温和20、25、30℃恒温箱中,经不同天数后取样测定发芽率,提出了种子水分、贮藏温度和保持85％发芽率的贮藏天数之间的回归方程。在辽宁省不同地区开展的实际贮藏试验表明,玉米种子渡夏安全贮藏的最大水分是14％,以水分13％为理想。采用自然低温密闭贮藏的方式,可以降低种子衰老的速度和削弱外界夏季高温的影响,更有利于安全渡夏贮藏。不同的杂交组合和种子的原始发芽率也是影响玉米种子安全渡夏贮藏的技术参数。
In order to explore the safe storage technology of maize seed crossing in summer, the effect of seed moisture and storage temperature on the aging speed was studied under laboratory conditions. Seeds with different moisture contents in the range of 12.1% ~ 17.8% were sealed in glass bottles. The germination rate was determined by sampling after different days at room temperature and 20, 25, 30 ℃ incubators. The seed moisture, storage temperature and 85% The regression equation between storage days for germination rate. Actual storage tests carried out in different areas of Liaoning Province showed that the maximum moisture content of maize seeds in summer storage is 14% and the moisture content is 13%. The use of natural low-temperature closed storage methods, can reduce the rate of seed aging and weakening the impact of summer heat outside, more conducive to safe summer storage. The initial germination rate of different hybrid combinations and seeds is also a technical parameter that affects the safe storage of maize seeds in summer.