种子含水量高,呼吸作用旺盛,水、热、二氧化碳等积累在种子堆内,容易发热,丧失发芽能力;种子水分含量过高,遇到严寒受冻害,也会丧失发芽能力。上述两个方面达到危害种子发芽力的程度,有一个水分含量的界限。在这个界限上下,含水量每增减1%,都有明显的影响。所以储藏种子时要准确地掌握种子含水量,储藏期间也要经常测定种子水分的变化。 Seeds with high water content, strong respiration, water, heat, carbon dioxide and other accumulation in the seed pile, easy to heat, loss of germination capacity; seed moisture content is too high, encountered cold frost damage, will also lose the ability to germinate. The above two aspects to achieve the degree of endanger the seed germination, there is a limit of the moisture content. Above this limit, the water content increases or decreases by 1% each, which has a significant impact. Therefore, when storing seeds to accurately grasp the seed water content, seed storage should also be measured during the regular changes in water.