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Evaluation of selected core collection lines for fodder yield and quality traits in sorghum (Sorghum bicolor (L.) Moench)

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Title Evaluation of selected core collection lines for fodder yield and quality traits in sorghum (Sorghum bicolor (L.) Moench)
 
Creator Vijay Luxmi
 
Contributor Pahuja, S.K.
 
Subject Yields, Diseases, Planting, Genotypes, Sorghum, Biological phenomena, Genetics, Drying, Developmental stages, Proteins
 
Description The present study was conducted on 61 sorghum genotypes grown in Randomized block desigen
during Kharif 2014 to evaluate, categorize and classify them for fodder yield and quality traits.
Observations were recorded on thirty one variables involving morphological, quality and biotic
resistance. Sufficient variability exhibited by all variablles except leaf breadth. High estimates of
heritability were recorded for most of characters except leaf length. Likewise high estimates for genetic
advance as per cent of mean were recorded for most of characters except NDF, Cellulose and ADF.
Phenotypic Coefficient of Variation (PCV) was higher than the corresponding Genotypic Coefficient of
Variation (GCV) for all the traits denoting environmental factors influencing their expression to some
degree. Genetic divergence study classified genotypes into six major clusters containing one to forty
eight genotypes. Cluster I and II had most favourable characters as plant height, number of tillers, stem
girth, green fodder yield, dry fodder yield, crude protein, DDM, Mn, IVDMD, Fe, Zn, K and brix.
Though cluster VI had mostly inferior characters yet it had good characteristics which are desirable for
biotic resistance as low incidence of shoot fly, stem borer and less intensity of sooty stripe. Principal
component analysis was done which explained 75.77 % variability through first 11 principal
components. In principal factor analysis, all the variables exhibited high loading on different factors.
Genotypes IS 651, IS 23890, SSG 59-3 and ICSV 700 were found to be better performers, considering
fodder yield characters and minerals, IVDMD, tannin, disease and insect resistence. Correlation study
indicated positive association of fodder yield with plant height, leaf length, total soluble sugar,
digestible dry matter, Fe, Mn, Cu and brix and negative correlation with tannin, HCN and NDF.
IVDMD was found to be positively correlated with DDM, number of leaves, crude protein and brix and
negative with lignin and HCN.
 
Date 2016-10-21T11:51:32Z
2016-10-21T11:51:32Z
2015
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/81218
 
Language en
 
Format application/pdf
 
Publisher CCSHAU