籽瓜果实和种子生长发育的动态研究

对籽瓜果实及种子的生长发育动态实验研究表明：籽瓜果实和种子发育可分为３个阶段，花后２０天之前为第一阶段；花后２０～４０天为第二阶段；花后４０天至采收为第三阶段，果实和种子发育的两个高峰期则分别在第一和第三阶段内。第一高峰期决定着籽瓜果实和种子的大小，第二高峰期决定着籽瓜种子的产量和品质。

The Growth and Develoment Dynamics of Fruit and Seed of Seed-using Watermelon

According to the experimental results,the developmentof fruit and seed of seed-usingwatermelon might be divided into three stages;the first stage was from blossom to 20 days after flow er,the second stage was from 20 days to 40 days after flower,the third stage was from 40 days afterflower to hasvest .Two peak time for development fruit and seed would be within the first and thirdstage,respectively ,The first pead time determined the of fruit of seed-ustng watermeoln .the sec ond peak time determined the output and quality of seed of seed-using watermelon We should pay attention to these two key stages in cultivation and take appropriate technical meaasures in order to raisethe output and quality of seed-using watermelon.