Morphological characterization of sorghum (Sorghum bicolor (L.) Moench) germplasm for fodder yield and DUS traits
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Date
2016
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Publisher
CCSHAU
Abstract
A total of 75 germplam lines of sorghum were characterized on the basis 27 qualitative and 12
quantitative characters provided by PPV & FRA for DUS testing in sorghum. Results revealed that
maximum variation was present among genotypes on the basis of glume colour (6 groups), neck of
panicle (5 groups), length for flower with pedicel (5 groups), time of panicle emergence (4 groups),
colour of dry anther (4 groups), panicle length of branches (4 groups), panicle shape (4 groups) and
caryopsis colour (4 groups). Classification of genotypes on the basis of DUS traits provided
identification of key characteristics of various genotypes. High GCV and high PCV were observed
for traits like plant height (cm), number of tillers per plant, green fodder yield per plant (g), 1000
seed weight (g) and panicle length without peduncle (cm). High heritability coupled with high
genetic advance was found for the traits viz., number of tillers per plant, green fodder yield per plant
(g), dry fodder yield per plant (g), 100 seed weight (g), 1000 seed weight (g) and panicle length
without peduncle (cm). Dry fodder per plant was found significant positive association with plant
height, leaf width, leaf length, stem diameter, number of leaves per plant of leaves and green fodder
yield. Based on path coefficient analysis at the genotypic level high direct and positive effects were
observed for 1000 seed weight, stem diameter, green fodder yield while 100 seed weight had high
negative direct effects. Using Toucher’s method employed on the Mahalanobis euclidation2 distance
(D2) values genotypes were grpuped into seven cluser. The intra and inter cluster distance were
ranging from 3.21-4.31 and 4.32-6.36 respectively. The inter cluster distance were higher than intra
cluster distances. Total of five components were extracted on the basis of Eigenvalues (> 1) and
these components explained upto 71.35% variability
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Keywords
Biological phenomena, Economic systems, Animal husbandry, Productivity, Markets, Milk products, Economics, Beverages, Fats, Agreements