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种质资源是玉米育种的基础材料。要培育高产优质的玉米杂交种,就要以丰富的种质资源作基础。以往大多数育种单位是在自然条件下保存种质资源的,但玉米种子的使用寿命仅为2～3年。鉴于种子的寿命有限,种质资源材料每隔2～3年就要复种一次,不仅浪费了财力物力,而且又不利于种质的保持。现在介绍一种玉米种质资源的保存方法。众所周知种子的保存寿命受种子的含水量和贮藏室的温度影响,适当降低种子含水量及贮藏温度有利于延长种子寿命。本人于1980～1989年用普通冰箱贮存
Germplasm is the basic material of corn breeding. To breed high-yielding and high-quality maize hybrids, we must base ourselves on abundant germplasm resources. In the past, most breeding units conserved germplasm resources under natural conditions, but the service life of maize seeds was only 2-3 years. In view of the limited life expectancy of seeds, germplasm resources should be re-planted every 2 to 3 years, not only wasting financial and material resources, but also not conducive to the maintenance of germplasm. Now introduce a corn germplasm preservation methods. It is well-known that the storage life of seeds is affected by the moisture content of the seeds and the temperature of the storage room. Properly reducing the seed water content and storage temperature is beneficial to prolonging the seed life. I used ordinary refrigerator from 1980 to 1989