辣椒多倍体诱导的初步研究  

A PRELIMINARY STUDY ON INDUCED POLYPLOID BUSH REDPEPPER CAPSICUM ANNUUMS L

作　　者：江洪如[1] 涂艺声[1] 奚昕[1] 

机构地区：[1]江西省科学院生物资源研究所,南昌330029

出　　处：《江西科学》1993年第3期183-186,共4页Jiangxi Science

摘　　要：辣椒是二倍体植物(2n=24),本实验用秋水仙素水溶液处理辣椒种子和幼苗,获得了四倍体(2n=48).实验表明:四倍体辣椒的叶、茎、花、果和种子等各个器官均表现了肥大特征,但四倍体现蕾比二倍体晚5—7d.用四倍体做母本,二倍体做父本,进行杂交,获得了同源三倍体(2n=36).子叶的宽长比值可作为多倍体鉴定的指标.Bush redpepper Capsicum annuum L. is a diploid,2n = 24. The tetraploid ( in - 48 ) form has been obtained by treating the Bush redpepper seeds and seedlings with aqueous solutions of colchicine. The results show: some organs of tetraploid, such as leaf, stein flower, fruit and seed etc., have exhibited hyperplasia, but the floral initiation of tetraploids is 5-7 days later than that of diploids. The autotriploid ( 3n=36 ) form has been got by hybridizing the diploid ( parent) with tetraploid ( parent). The breadth-length rate of cotyledon can be used to identify polyploid plants.

关 键 词：多倍体诱导 四位体 辣椒 育种 

分 类 号：S641.303[农业科学—蔬菜学]