【摘要】 在甜菜良种繁育中 ,影响种子产量和发芽率的原因很多 ,而种株后期倒青则是降低种子产质量的主要原因之一。种株倒青除因后期多水和施氮肥过多以外 ,还与中、前期土壤水分状况有密切关系更多还原

【Abstract】 Seed yield and germination percentage were influenced by many factors in beet seed breeding One of the major reasons which make seed quality go down is seed plant fruitlees grower in latter period. Seed plant fruitlees grower is not only related to over watering and over fertilizing in latter stage , but is interrelated to soil moisture content in earlier stage and middle period as well .更多还原