Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Inner Mongolia Institute of Agriculture and Animal Husbandry》 2003-04
Add to Favorite Get Latest Update

STUDY ON THE FERTILITY OF Elymus dahuricus, Hordeum brevisubulatum AND THEIR HYBRID F_1 AND BC_1

LI Zao-zhei~1,YU Zhuo~2, YUN Jin-feng~1,MA Qing-zhi~3 (1.College of Ecology and Environmental Science;2.College of Agronomy; 3.College of Bioengineering, Inner Mongolia Agricultural University, Huhhot010019,China)  
The pollen fertility rates and seed sets of Elymus dahuricus, Hordeum brevisubulatum and their hybrid F_1 and BC_1 were determined. The results showed that the pollen fertility rates of Elymus dahuricus and Hordeum brevisubulatum were 87.1% and 89.2% respectively, the seed sets were 39.4% and 34.8% respectively. The hybrid F_1 was highly infertile. The fertilities of BC_1 were enhanced in different degree, the pollen fertility rates and seed sets were varied among BC_1 lines;the pollen fertility rates and seed sets of some BC_1 lines were still low, the pollen fertility rate was only 0.3% and seed set was 0; the pollen fertility rates and seed sets of some BC_1 lines were high, the pollen fertility rate reached to 74.9%, seed set reached to 14.6%, which indicated that backcross is an effective way to restore fertility to wide cross hybrid F_1.
【Fund】: 国家自然科学基金项目(30260074)
【CateGory Index】: S334
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved