Record Details

Evaluation of mini core collection of sorghum (sorghum bicolor (L). Moench) for fodder yield and seed quality

KrishiKosh

View Archive Info
 
 
Field Value
 
Title Evaluation of mini core collection of sorghum (sorghum bicolor (L). Moench) for fodder yield and seed quality
 
Creator Dharmveer
 
Contributor Naresh kumar
 
Subject Biological phenomena, Livestock, Animal developmental stages, Planting, Groundnuts, Soybeans, Productivity, Extraction, Plant products, Crops
 
Description The present study was conducted on 104 forage sorghum genotype with two checks (HJ-541 and SSG-
59-3) grown in Augmented design-II during kharif 2012-2013 to evaluate, categorize and classify them and for
computation of principal components to determine the relative importance of principal components and
characters involved them. Observations were recorded on thirteen variables involving morphological and fodder
yield attributes.
The study revealed that on the basis of seedling anthocyanine colourtion of coleoptiles, the genotypes
were divided into two groups: yellow green (Fifty eight genotypes) and grayed purple (forty eight genotypes).
The lemma arista formation, genotypes were categorized into two groups each, forty genotypes had presence of
lemma arista formation and remaining sixty six genotypes had absence of lemma arista formation. On the basis
of panicle shape, genotypes were classified into five categories viz., symmetrical, panicle broader in upper part,
panicle broader in lower part and pyramidal. Fifty one genotypes had symmetrical, thirty genotypes had panicle
broader in lower part, ten genotypes had panicle broader in upper part and fifteen genotypes had pyramidal in
their panicle shape. On the basis of panicle density, genotypes were classified into five categories viz., very
loose, loose, semi loose and semi compact and compact. Seven genotypes had very loose, thirty two seven
genotypes had loose, fifty one genotypes had semi loose, two genotypes had semi compact and seven genotype
had compact panicle at maturity. On the basis of flag leaf yellow colouration of midrib, genotypes were
classified into two categories viz., absence and presence of yellow colouration. Forty five genotypes had white
midrib and remaining 61 genotypes had yellow green midrib colour. On the basis of 1000-grain weight,
genotypes were classified into four categories viz., low, medium, high and very high. Thirty five genotype low
(16-25 g), 59 had medium (26-35 g), six had high (36-45 g) and remaining two (IS- 608, IS- 995) had very high
(>45 g) 1000-grain weight.
Analysis of variance revealed substantial amount of variability for all the characters. Broad sense
heritability, GCV, PCV, Correlation and path analysis were also carried out in these 104 genotypes. To know
the relative importance and usefulness of variables and genotypes, principal component analysis was done
which explained 89.46% variability through first five principal components. Data were further analyzed using
principal factor analysis to offset the limitations of principal components analysis. All the variables exhibited
high loading on different factors in such a manner that they could be designated as seedling vigour index, green
fodder yield/plant factor and dry fodder yield/plant factor, etc. depending upon the type of variables loaded on a
particular factor. Principal factor scores were obtained to know the performance of different genotypes in
different factors that ascribe to a particular set of characters. Genotypes IS-4631, IS-12937, IS-20727, IS- 8012
and IS-473 were identified superior for both the characters (seedling vigour index and fodder yield) collectively
and genotypes IS-473, IS-4631, IS-12937, IS- 8012 and IS-20727 were identified superior for both the
characters (TSS content and fodder yield) collectively. These genotypes may prove better parents in
hybridization programme when both the factors are to be considered together.
 
Date 2016-09-14T09:23:52Z
2016-09-14T09:23:52Z
2013
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/76513
 
Language en
 
Format application/pdf
 
Publisher CCSHAU