Location of Repository

D.Shivani*, Ch. Sreelakshmi and C.V. Sameer Kumar

By 

Abstract

The results of the experiment on the magnitude of heterosis and inbreeding depression in 38 genotypes (15 F1s, their 15 F2s and 8 parents) for yield and its attributes revealed highly significant variations for all the genotypes and for all the characters studied. Two hybrids for earliness and four hybrids for short stature exhibited significant negative standard heterosis, while four hybrids for number of capitula per plant, seven hybrids for number of seeds per capitulum, five hybrids for test weight and three hybrids for seed yield exhibited significant positive standard heterosis. There was positive inbreeding depression in F2 generation for all the characters in majority of the hybrids. There was non significant heterosis and inbreeding depression for oil content in F1 and F2 generations respectively. Key words: Safflower, heterosis, inbreeding depression Of the various options available, the genetic enhancement is one of the important tools to improve the productivity of any crop. The hybrid technology, a modern approach to enhance the genetic potential, has been widely acclaimed and established in various crop species. In F2 generation the segregation and reduction in heterozygosity adversely affect th

Year: 2010
OAI identifier: oai:CiteSeerX.psu:10.1.1.187.7483
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://sites.google.com/site/e... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.