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Studies on seed viability and vigour in pearl millet [Pennisetum glaucum (L.)R. Br]

KrishiKosh

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Title Studies on seed viability and vigour in pearl millet [Pennisetum glaucum (L.)R. Br]
 
Creator Ananda, H.A.
 
Contributor Deswal, D.P.
 
Subject Economic systems, Animal husbandry, Livestock, Dairy farms, Diseases, Biological phenomena, Area, Productivity, Marketing, land resources
 
Description Twenty genotypes of pearl millet were evaluated for seed quality by various viability, vigour
tests with three replications and observations were recorded on standard germination, seedling length,
seedling dry weight, seed weight, seed density, vigour index-I, Vigour Index-II, accelerated ageing test,
electrical conductivity, tetrazolium test, dehydrogenase activity test, pH exudates test, field emergence
index, seedling establishment and mean emergence time .Significant mean squares values showed the
wide variation among the genotypes for all studied parameters. The hybrids were superior for most of
the vigour and viability parameters than their parental lines. The hybrids namely HHB 216 and HHB
226 ranked at top in almost all parameters. Among ‘R’, ‘A’, and ‘B’ lines HTP 3/13, HMS 7A and
HMS 37B respectively were found superior, based on majority of viability and vigour tests.on the other
hand ‘A’ line ICMA 97111 and ICMA 94555 has shown lowest rank in most of parameters.
All the parameters were significantly positively correlated with standard germination except
seedling dry weight, seed density and pH exudates test whereas, field emergence also showed the
positive correlation with all parameters except seedling dry weight and pH exudates test. The electrical
conductivity was negatively correlated with standard germination and field emergence. Tetrazolium test
followed by vigour index-II showed highest reliability for prediction of standard germination whereas
standard germination followed by tetrazolium showed the highest reliability for prediction of field
emergence. Correlation coefficient analysis and regression analysis revealed that vigour and viability
parameters viz., tetrazolium test, Dehydrogenase activity test, vigour indices, electrical conductivity and
accelerated ageing, can be used as reliable predictors of standard germination and field emergence in
pearl millet. The tetrazolium test and electrical conductivity test should be most preferred as they are
not only quick and cost effective but also easy to perform.
 
Date 2016-11-08T10:49:53Z
2016-11-08T10:49:53Z
2011
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/84366
 
Language en
 
Format application/pdf
 
Publisher CCSHAU