Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Pakistan Journal of Biological Sciences
  Year: 2009 | Volume: 12 | Issue: 6 | Page No.: 486-491
DOI: 10.3923/pjbs.2009.486.491
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail
Heterosis in Some Crosses of Bread Wheat under Irrigation and Drought Conditions
M.A. Abdel-Moneam

Abstract:
Five bread wheat varieties with different characteristics were crossed in a half-diallel model in 2005/2006 season. The five parents and their 10 F1 hybrids were evaluated under normal and water stress conditions during 2006/2007 season, to estimate heterosis of some wheat crosses for drought tolerance and selecting the crosses which could be useful in breeding programs for drought tolerance. The results indicated that, the best crosses over their mid parents at water stress condition for days to heading was Sakha-61xSakha-93; for flag leaf area were Giza-168xGemmeiza-9 and Sakha-61xGemmeiza-9 and for plant height was Sakha-61xSakha-93. The best crosses over their mid parents at both normal and stress conditions for days to maturity was Sakha-61xGemmeiza-9; for flag leaf area were Giza-168xSakha-61, Sakha-8xGemmeiza-9 and Sakha-93xGemmeiza-9; for spikes/plant were Sakha-8xSakha-61, Sakha-8xGemmeiza-9 and Sakha-61xSakha-93; for kernels/spike were Giza-168xSakha-8, Giza-168xSakha-61, Giza-168xSakha-93 and Sakha-8xGemmeiza-9; for 100-kernel weight were Giza-168xGemmeiza-9, Sakha-61xSakha-93 and Sakha-93xGemmeiza-9 and for grain yield/plant were Giza-168xSakha-93, Sakha-8xGemmeiza-9 and Sakha-93xGemmeiza-9. The best crosses over their better parents at water stress condition for flag leaf area were Giza-168xSakha-8, Giza-168x Gemmeiza-9 and Sakha-8xGemmeiza-9; for plant height were Giza-168xGemmeiza-9 and Sakha-8x Sakha-61. The best crosses over better parents at both normal and stress conditions for plant height were Giza-168xSakha-8, Sakha-8xGemmeiza-9 and Sakha-93xGemmeiza-9; for spikes/plant were Sakha-8xSakha-61, Sakha-61xSakha-93 and Sakha-8xGemmeiza-9; for kernels/spike were Giza-168xSakha-61 and Giza-168xSakha-93 and for grain yield/plant were Sakha-61xSakha-93 and Sakha-93xGemmeiza-9. Estimation of useful heterosis over better parent for grain yield/plant proved that it never exceeds 10.16% at normal condition (cross Giza-168xGemmeiza-9) and 12.76% at stress condition (cross Sakha-93xGemmeiza-9). Useful segregate could be selected from such hybrids as hybrids wheat are still under experimentation in Egypt.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Phenotyping and Genotyping through F1 and F2 Generation the Promising Crosses
How to cite this article:

M.A. Abdel-Moneam , 2009. Heterosis in Some Crosses of Bread Wheat under Irrigation and Drought Conditions. Pakistan Journal of Biological Sciences, 12: 486-491.

DOI: 10.3923/pjbs.2009.486.491

URL: https://scialert.net/abstract/?doi=pjbs.2009.486.491

 
COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 

       

       

Curve Bottom