Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Pakistan Journal of Biological Sciences
  Year: 2006 | Volume: 9 | Issue: 12 | Page No.: 2333-2337
DOI: 10.3923/pjbs.2006.2333.2337
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Analysis of Combining Ability in Brassica napus L. Lines for Yield Associated Traits

Abdul Wahab Nassimi, Raziuddin , Naushad Ali , Sardar Ali and Jehan Bakht

Abstract:
For determination of good combiners in Brassica napus L. genotypes, a study was conducted 8x8 diallel during 2004-05 and 2005-06. F1s and parents were evaluated for combining ability for yield associated traits. Analysis of variance revealed highly significant differences (p≤0.01) for all traits. Components of combining ability analysis exhibited that, GCA was highly significant (p≤0.01) for number of seeds/plant, while significant (p≤0.05) for number of pods/plant and pod length whereas non-significant for 1000 seed weight and seed yield/plant. SCA and RCA effects were highly significant for all traits. GCA effects were higher than SCA and RCA for number of pods/plant and number of seeds/pod indicating that additive gene effects controlled the expression of these traits. The SCA effects were of greater magnitude than GCA effects for 1000 seed weight showing the contribution of non-additive gene effects. RCA effects were greater than GCA and SCA for number of pods/plant and seed yield/plant showing that reciprocal crosses have higher potential than direct crosses for these traits. The parent genotypes NUR1, NUR3, NUR4 and NUR9 and hybrids NUR1xNUR7, NUR2xNUR1, NUR2xNUR8, NUR3xNUR1, NUR3xNUR9, NUR4xNUR7, NUR5xNUR2, NUR5xNUR8, NUR7xNUR4 and NUR8xNUR1 had higher GCA and SCA effects, respectively therefore could be exploited for further selection of high yielding progenies. The overall study revealed the importance of both additive and non-additive genetic variability suggesting the use of integrated breeding strategies which can efficiently utilize the additive as well as non-additive genetic variability.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Combining Ability and Standard Heterosis Analysis of Two-Line System Hybrid Rice
  •    Combining Ability Analysis in Sunflower (Helianthus annuus L.)
  •    Estimation of combining ability for grain yield and its components in 4 x 4 diallel cross of Maize (Zea mays L.)
  •    Combining Ability Analysis in Linseed (Linum usitatissimum L.)
How to cite this article:

Abdul Wahab Nassimi, Raziuddin , Naushad Ali , Sardar Ali and Jehan Bakht , 2006. Analysis of Combining Ability in Brassica napus L. Lines for Yield Associated Traits. Pakistan Journal of Biological Sciences, 9: 2333-2337.

DOI: 10.3923/pjbs.2006.2333.2337

URL: https://scialert.net/abstract/?doi=pjbs.2006.2333.2337

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 

Curve Bottom