利用1964年甜菜研究所建造的种子库,从1965年起进行了甜菜种子保存年限与发芽关系的调查。试验1:采用1965年产二倍体多胚种“月寒”,将种子含水率调整为14.8％、11.7％、6.4％三种,各取20g装入聚乙稀袋中密封及装入纸袋(牛皮纸信封)中,贮藏于种子库(温度5℃,湿度40％),每年 Using the seed bank constructed by the Beet Research Institute in 1964, a survey was conducted from 1965 on the relationship between the number of years of beet seed storage and germination. Test 1: The polygloid seed embryo “Moony cold” produced in 1965 was used to adjust the seed moisture content to 14.8%, 11.7% and 6.4% respectively, each 20g was packed in a polyethylene bag, sealed and packed in a paper bag Kraft envelope), stored in a seed bank (temperature 5 ° C, humidity 40%) per year