Anatomic Study of Female Sterility of Pinus tabulaeformis Carr.

编号 zgly0000303646

文献类型 期刊论文

文献题名 Anatomic Study of Female Sterility of Pinus tabulaeformis Carr.

学科分类 220.99;林学其他学科

作者 ChengPengjun  LiFenglan  ZhengCaixia 

作者单位 CollegeofBiologicalSciencesandBiotechnology 

母体文献 Forestry Studies in China;中国林学: 英文版 

年卷期 2003,5(1)

页码 13-19

年份 2003 

分类号 S791.254 

关键词 油松  雌性不育  解剖结构  胚珠退化  有丝分裂  游离核  大孢子 

文摘内容 The anatomic research on the mutant clone of Pinus tabulaeformis Carr.in the seed orchard in Xingcheng,Liaoning Provinces was carried out.The female cone of the mutant clone looked like normal,but its ovules degenerated in early stage.This paper trics to find out the reason and time of ovule abortion.It seems that the ovule abortion is probably caused by female sterility because the microspores of this mutant clone were normal.Through the serial observations on the one-year-old macrosporangiates and the ovules of two-year-old female cones of mutant and normal clone,it is found that the reason of ovule abortion in mutant clone is the failure of the mitosis of free nuclei in the female gametophyte,and the time is about in the early April。