Variability assessment and identification of early cassava (Manihot esculenta Crantz) genotypes

Thirteen early maturing cassava genotypes were evaluated along with M4, a high yielding variety at College of Horticulture, Kerala Agricultural University, Thrissur, India. All the fourteen genotypes differed with respect to quantitative and qualitative trait. Variability was more for aerial parts....

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Main Author: Hilario Ernesto Magaia*, Jiji Joseph*, Rose Mary Francies*and Santhoshkumar A.V
Format: Article
Language:English
Published: Indian Society of Plant Breeders 2014-09-01
Series:Electronic Journal of Plant Breeding
Subjects:
Online Access:https://sites.google.com/site/ejpb2011/vol-5-3/EJPB_V5_N3_495-503.pdf?attredirects=0&d=1
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author Hilario Ernesto Magaia*, Jiji Joseph*, Rose Mary Francies*and Santhoshkumar A.V
author_facet Hilario Ernesto Magaia*, Jiji Joseph*, Rose Mary Francies*and Santhoshkumar A.V
author_sort Hilario Ernesto Magaia*, Jiji Joseph*, Rose Mary Francies*and Santhoshkumar A.V
collection DOAJ
description Thirteen early maturing cassava genotypes were evaluated along with M4, a high yielding variety at College of Horticulture, Kerala Agricultural University, Thrissur, India. All the fourteen genotypes differed with respect to quantitative and qualitative trait. Variability was more for aerial parts. Genotypes showed variable response to cassava mosaic disease (CMD) and cassava leaf spot. Three genotypes were resistant to CMD. Tuber yield had strong correlation with stem girth, tuber length, biomass and dry matter. Plant height, branch height and stem girth exhibited high heritability. Based on the biometric traits, genotypes could be grouped in to five clusters. High yielding varieties and local accessions fall in to the same cluster indicating the superiority of local accessions. Ranking of the accessions was done by construction of selection index indicated that CSV COH 1 a local accession collected from Malappuram district was the best followed by Sree Jaya a high yielding variety.
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spelling doaj.art-95015cc5084148879fcedb2d4a29c3c52022-12-21T17:56:17ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2014-09-0153495503Variability assessment and identification of early cassava (Manihot esculenta Crantz) genotypesHilario Ernesto Magaia*, Jiji Joseph*, Rose Mary Francies*and Santhoshkumar A.VThirteen early maturing cassava genotypes were evaluated along with M4, a high yielding variety at College of Horticulture, Kerala Agricultural University, Thrissur, India. All the fourteen genotypes differed with respect to quantitative and qualitative trait. Variability was more for aerial parts. Genotypes showed variable response to cassava mosaic disease (CMD) and cassava leaf spot. Three genotypes were resistant to CMD. Tuber yield had strong correlation with stem girth, tuber length, biomass and dry matter. Plant height, branch height and stem girth exhibited high heritability. Based on the biometric traits, genotypes could be grouped in to five clusters. High yielding varieties and local accessions fall in to the same cluster indicating the superiority of local accessions. Ranking of the accessions was done by construction of selection index indicated that CSV COH 1 a local accession collected from Malappuram district was the best followed by Sree Jaya a high yielding variety.https://sites.google.com/site/ejpb2011/vol-5-3/EJPB_V5_N3_495-503.pdf?attredirects=0&d=1CassavavariabilitycorrelationheritabilityCassava mosaic disease
spellingShingle Hilario Ernesto Magaia*, Jiji Joseph*, Rose Mary Francies*and Santhoshkumar A.V
Variability assessment and identification of early cassava (Manihot esculenta Crantz) genotypes
Electronic Journal of Plant Breeding
Cassava
variability
correlation
heritability
Cassava mosaic disease
title Variability assessment and identification of early cassava (Manihot esculenta Crantz) genotypes
title_full Variability assessment and identification of early cassava (Manihot esculenta Crantz) genotypes
title_fullStr Variability assessment and identification of early cassava (Manihot esculenta Crantz) genotypes
title_full_unstemmed Variability assessment and identification of early cassava (Manihot esculenta Crantz) genotypes
title_short Variability assessment and identification of early cassava (Manihot esculenta Crantz) genotypes
title_sort variability assessment and identification of early cassava manihot esculenta crantz genotypes
topic Cassava
variability
correlation
heritability
Cassava mosaic disease
url https://sites.google.com/site/ejpb2011/vol-5-3/EJPB_V5_N3_495-503.pdf?attredirects=0&d=1
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