核农学报2017，Vol.31Issue(6)：1076-1085,10.DOI:10.11869/j.issn.100-8551.2017.06.1076
人工诱导的同源四倍体西瓜种子形态结构变异研究
Variation of the Induced Autotetraploid Watermelon Seeds
摘要
Abstract
Tetraploid watermelon plays an important role in triploid seedless watermelon breeding as the female parent,especially the seed traits of tetraploid watermelon effect the seed germination rate,seedling rate and seed amount of triploid watermelon varieties.In order to research the traits of tetraploid watermelon seeds,lines of 41 T6 autotetraploid seeds induced by colchicine were used in this research,the original diploid was used as the control,the germination rate,single fruit seeds,hundred-grain weight and morphological structure difference were compared.The result showed that the germination rate of tetraploid watermelon seeds were lower and the single fruit seeds is fewer than their original diploid,the tetraploid watermelon seeds had bigger hundred-grain weight,length,width,thickness and width of beak.The number of seeds in single tetraploid watermelon was significantly correlated with that of the original diploid watermelon.And the hundred grain weight,related significantly with the length and width neither for the diploid nor the tetraploid watermelon,the seed shell thickness of tetraploid watermelon has significant correlation with multiple characters,the seed germination rate of tetraploid watermelon correlated only with beaks wide and had no correlation to any characters.Through the comparisons between the characteristics of tetraploid seeds and diploid seeds,a certain theoretical basis would be provided for tetraploid watermelon breeding.关键词
人工诱导/二倍体/同源四倍体/西瓜/种子Key words
artificial induction/diploid/autotetraploid/watermelon/seed引用本文复制引用
路绪强,朱红菊,赵胜杰,何楠,刘文革..人工诱导的同源四倍体西瓜种子形态结构变异研究[J].核农学报,2017,31(6):1076-1085,10.基金项目
国家自然科学基金面上项目(31471893),中国农业科学院科技创新工程专项经费项目(CAAS-ASTIP-2016-ZPRI),现代产业产业技术体系建设专项(CARS-26-03) （31471893）
