一、水稻种子干燥处理水稻种子含水量过高(种子含水量超过17%)在高温条件下呼吸作用加强,大量消耗物质会使种子发芽能力降低;温度偏低时原生质体容易受冻凝固,也同样会使种子丧失发芽能力。吉林省秋季收获时期气温偏低.种子含水量一般都在20%以上,脱水慢,冬季气温寒冷时期长,很容易造成种子受冻现象。因 First, the rice seed drying rice seed water content is too high (seed moisture content of more than 17%) under high temperature respiration strengthened, a lot of consumption of material will reduce the ability of seed germination; low temperature protoplasts susceptible to freezing solidification also The same will make the seed lose germination ability. The autumn harvest temperature in Jilin Province is low, and the seed water content is generally above 20%. The dehydration is slow and the winter temperature is cold. It is easy to cause the seeds to be frozen. because