苦瓜果实发育过程中的主要营养成分变化及种子生活力演进

Changes in content of nutritional components and vigor of seed during fruit development of bitter gourd

为明确苦瓜的果实和种子的适宜采收时期,采用"翠中翠"苦瓜为研究对象,对苦瓜果实发育过程中的可溶性蛋白、总可溶性糖、维生素C的含量及种子生活力的变化进行动态监测。结果显示:(1)花后第14天至第26天,随着果实的迅速膨大,可溶性蛋白、总可溶性糖及维生素C含量也迅速增长;(2)种子干物质迅速积累,含水量迅速下降,种子生活力迅速提高,至花后第22天至第26天,种子生活力基本稳定。

In order to determine the proper harvesting stage for fruit and seed of bitter gourd, the study was conducted to monitor the changes in the content of total soluble protein,total soluble sugar,vitamin C and the seed germinability during fruit development. The results showed that： （1）the fruit enlarged rapidity from 14 to 26 days after anthesis（DAA）in coincide with the increase of total soluble protein, total soluble sugar and vitamin C contents;（2）from 14 to 22 DAA, seeds dry matter accumulated in a fast rate associated with the decline of seed moisture content. Seed showed germinability since 14 DAA,and enhanced thereafter,the highest germination percentage was obtained in 22 to 26 DAA.