search
for
 About Bioline  All Journals  Testimonials  Membership  News  Donations


African Crop Science Journal
African Crop Science Society
ISSN: 1021-9730
EISSN: 2072-6589
Vol. 1, No. 1, 1993, pp. 15-23
Bioline Code: cs93003
Full paper language: English
Document type: Research Article
Document available free of charge

African Crop Science Journal, Vol. 1, No. 1, 1993, pp. 15-23

 en Influence of the Environment on the Performance of some Onion Cultivars in Kenya
Kimani, P.M; Kariuki, J.W; Peters, R & Rabinowitch, H.D

Abstract

Eight introduced and three local onion ( Allium cepa check for this species in other resources ) cultivars were evaluated at four locations for two seasons in Kenya to determine genotype x environment interactions and stability for bulb yield and other agronomic characters. The genotype x environment interactions and stability were investigated by regression analysis. Genotypic effects were highly significant for all traits except days to maturity. Bulb yields for the 11 cultivars varied between 16.2 and 35.6 t ha-1; introduced cultivars out-yielded the local ones. Environment (E) and genotype (G) x environment interaction effects were highly significant for all traits. A considerable portion of genotype x environment interaction effects for bulb yield was linear. The significant G x E (linear) variance indicated that there were genetic differences among the cultivars in their response to the environment.

Keywords
Adaptability, days to maturity, shape index, stability analysis

 
© Copyright 1993 - African Crop Science Society

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2022, Site last up-dated on 10-Dec-2021.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Internet Data Center of Rede Nacional de Ensino e Pesquisa, RNP, Brazil