Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Pakistan Journal of Biological Sciences
  Year: 2003 | Volume: 6 | Issue: 23 | Page No.: 1945-1948
DOI: 10.3923/pjbs.2003.1945.1948
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Gene Action in a Five Parent Diallel Cross of Spring Wheat (Triticum aestivum L.)

Abdus Salam Khan and Imran Habib

Abstract:
In the present study graphic analysis was made for 5x5 diallel cross involving wheat varieties/lines viz., Tobari-66, SARC-1, 4943, 4072 and 4770 to determine genetic mechanism controlling some important yield components during crop season 2001-2002. Number of tillers per plant and grain weight per spike were governed by over-dominance type of gene action while plant height and peduncle length were controlled by partial dominance with additive type of gene action. Whereas, 1000-grain weight exhibited partial dominance type of gene action. Genotype Tobari-66 possessed maximum dominant genes for plant height and peduncle length and SARC-1 for number of tillers per plant. While genotype 4072 had maximum dominant genes for traits like grain weight per spike and 1000-grain weight. Epistasis was absent for all the above mentioned traits. For the traits like plant height, peduncle length and 1000-grain weight, selection in early generation will be fruitful whereas delayed selection should be preferred for the traits like number of tillers per plant and grain weight per spike.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Gene Action and Combining Ability in a Six Parent Diallel Cross of Wheat
  •    Gene Action for Plant Height, Grain Yield and Its Components in Spring Wheat
  •    Gene System Governing Plant Height and Some Drought Related Leaf Characteristics in Spring Wheat
  •    Study of Genetic Architecture of Some Important Agronomic Traits in Durum Wheat (Triticum durum Desf.)
  •    Genetic Analysis of Some Yield Contributing and Quality Characters in Spring Wheat (Triticum aestivum)
How to cite this article:

Abdus Salam Khan and Imran Habib , 2003. Gene Action in a Five Parent Diallel Cross of Spring Wheat (Triticum aestivum L.). Pakistan Journal of Biological Sciences, 6: 1945-1948.

DOI: 10.3923/pjbs.2003.1945.1948

URL: https://scialert.net/abstract/?doi=pjbs.2003.1945.1948

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 

Curve Bottom