Bookcover of Common Bean Improvement
Booktitle:

Common Bean Improvement

Improving resistance to Fusarium root rot (Fusarium solani f. sp. Phaseoli) in Common bean (Phaseolus vulgaris L.)

LAP LAMBERT Academic Publishing (2011-03-02 )

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ISBN-13:

978-3-8383-8925-7

ISBN-10:
3838389255
EAN:
9783838389257
Book language:
English
Blurb/Shorttext:
Fusarium root rot (FRR) is an important soil-borne disease of common bean worldwide. In Africa, minimal or no control measures are applied resulting in heavy yield losses. Popular varieties are susceptible and resistant ones have undesirable traits. Four isolates were tested for pathogenicity and one, FSP-3, subsequently utilised in screening trails to identify resistant varieties. Two soil compositions, i) 50% swamp soil:50% forest soil composition and ii) forest soil, and two irrigation schedules i) once a week and ii) daily, categorized varieties most distinctly according to their reaction to FRR. 147 common bean varieties were evaluated in a screenhouse and 46 of these in the field. Nine varieties were selected as sources of resistance. Evaluation of 66 F1 and F2 populations plus reciprocals showed that FRR resistance was mainly governed by additive genes with a few crosses displaying significant SCA effects. Significant maternal effects and non-maternal were observed. Number of resistance genes varied from 2-9, allelism test suggested presence of many loci governing this trait. Heritability (H) varied from 0.22-0.69 and h2 was estimated at 0.35-0.49.
Publishing house:
LAP LAMBERT Academic Publishing
Website:
https://www.lap-publishing.com/
By (author) :
Clare Mukankusi
Number of pages:
204
Published at:
2011-03-02
Stock:
Available
Category:
Genetics
Price:
79.00 €
Keywords:
Genetic Resistance, Fusarium root rot, Genetic Analysis, Genotypic variability, Common Bean, genetics analysis, common bean

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