Home           Contact us           FAQs           
 
   Journal Page   |   Aims & Scope   |   Author Guideline   |   Editorial Board   |   Search
    Abstract
2011 (Vol. 3, Issue: 6)
Article Information:

Generation Means Analysis of Seed Sucrose Content in Cowpea (Vigna unguiculata L. Walp.)

J.B. Noubissie Tchiagam, E. Youmbi, N.Y. Njintang, J.M. Bell and A. Nassourou Maina
Corresponding Author:  NOUBISSIE TCHIAGAM Jean Baptiste 

Key words:  Genetic improvement, heritability, sweet flavour, Vigna unguiculata, , ,
Vol. 3 , (6): 475-480
Submitted Accepted Published
2011 August, 11 2011 October, 07 2011 November, 15
Abstract:

The sucrose concentration of seeds is an important component of the taste in cowpea (Vigna unguiculata L. Walp.). The objective of this research was to estimate the heritability, to investigate the mode of genetic control and to evaluate the potential for genetic improvement of sucrose content in cowpea using generationís means analysis. F1 and F2 generations as well as backcross populations (BCP1 and BCP2) were produced in three hybrid combinations by crosses of four selected cultivars. The sucrose level was measured via a High Performance Liquid Chromatography (HPLC) system. The range of variation in sucrose content among tested varieties was from 1.88 mg/g (Lori) to 5.32 mg/g (C93W-24-125). Broad-sense heritability (h2) was of a moderate 58.50% to high 68.12% value and no transgressive segregation was observed. Narrow-sense heritability (39.47 to 47.83%) and heterosis (-20.00 to - 5.94%) values and gene effects analysis suggested that the sucrose content is controlled by additive and non-additive genes. At 10% level of selection, an increase of 19.60 to 33.64% was predicted after one cycle. Epistasis was significant in most of crosses and at least five genes affected the sucrose accumulation in cowpea seeds. These results suggested that breeding for increased sucrose content in the seeds of cowpea can be quite successful through recurrent selection in later generations.
Abstract PDF HTML
  Cite this Reference:
J.B. Noubissie Tchiagam, E. Youmbi, N.Y. Njintang, J.M. Bell and A. Nassourou Maina, 2011. Generation Means Analysis of Seed Sucrose Content in Cowpea (Vigna unguiculata L. Walp.).  Asian Journal of Agricultural Sciences, 3(6): 475-480.
    Advertise with us
 
ISSN (Online):  2041-3890
ISSN (Print):   2041-3882
Submit Manuscript
   Current Information
   Sales & Services
   Contact Information
  Executive Managing Editor
  Email: admin@maxwellsci.com
  Publishing Editor
  Email: support@maxwellsci.com
  Account Manager
  Email: faisalm@maxwellsci.com
  Journal Editor
  Email: admin@maxwellsci.com
  Press Department
  Email: press@maxwellsci.com
Home  |  Contact us  |  About us  |  Privacy Policy
Copyright © 2009. MAXWELL Science Publication, a division of MAXWELLl Scientific Organization. All rights reserved