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近年来我省甜菜秋栽露地越冬采种,除自用外,每年还给黑龙江、内蒙等代繁8000—9000亩,种子1600—1800吨。一般单产种子200公斤,高者达350—400公斤,实践证明,甜菜秋栽露地越冬采种,其产质量均优于害存春栽。一般越冬采种的种子千粒重为20—23克,比窖存春栽提高1—3克;发芽率95—96％,提高3—4％;种子产量提高17—18％;并能提早成熟8—10天,繁育系数可达1200—1300倍;每亩可节省12个工日;用越冬种子生产原料甜菜,能提高根中含糖0.3—0.5度。
In recent years, the province of beet autumn planted winter harvest, in addition to their own use, each year back to Heilongjiang, Inner Mongolia and other Fan 8000-9000 acres, 1600-1800 tons of seeds. The general yield of 200 kg of seeds, the highest of 350-400 kg, the practice proved that the beet autumn planted open-cut winter planting, the quality of its production are better than Harm stored in spring. Generally overwintering seeds of seed weight of 20-23 grams, than the cellar stored in spring increased by 1-3 grams; germination rate of 95-96%, an increase of 3-4%; seed yield increased 17-18%; and early maturity 8- 10 days, breeding coefficient of up to 1200-1300 times; per mu can save 12 days; overwintering seed production of sugar beet, sugar can improve the root 0.3-0.5 degrees.