Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
Pakistan Journal of Biological Sciences
Year: 1998  |  Volume: 1  |  Issue: 3  |  Page No.: 159 - 162

Heterotic Effects in Spring Wheat (Triticum aestivum L.) Under Saline Conditions

M. Ahsan and D. Wright    

Abstract: Heterotic effects in spring wheat was investigated using the six basic generations (P1, P2, F1, F2 and back crosses, BC1 and BC2) of cross between Alexandria (salt sensitive) and KRL1-4 (salt tolerant) varieties. Heterotic effects were greatly pronounced as F1, means fall outside the parental range for all physiological and most of the agronomic traits except number of spikes per plant and average grain weight. The significantly different estimates of the dominance components in F2 for Na+, K+, K+/Na+ ratio, number grains per spikes and grain weight per spike than that obtained from F1 indicate spurious overdominance exhibited by the F1 generation for these traits. Gene dispersion or non-allelic interaction or involvement of modifier are suggested from the transgressive segregation in the F2 population. It is also suggested from the F2 population frequency distributions for all traits that they were quantitatively inherited.

Cited References   |    Fulltext    |   Related Articles   |   Back
   
 
 
 
  Related Articles

 
 
 
 
 
 
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility