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Studies on seed viability and vigour in naturally aged seeds of coriander (Coriandrum sativum L.)

KrishiKosh

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Title Studies on seed viability and vigour in naturally aged seeds of coriander (Coriandrum sativum L.)
 
Creator Vipesh Kumar
 
Contributor Verma, Sher Singh
 
Subject Packaging, Productivity, Biological phenomena, Economics, Economic systems, Fruits, Imports, markets, marketing, statistical methods
 
Description In the present investigation three seed lots of eight varieties/genotypes of coriander viz., DH-224,
DH-226, DH-228, DH-242, DH-259, DH-294, DH-296 and Hisar Anand, were subjected for different viability and
vigour parameters with the objectives to study the effect of natural ageing on seed quality parameters. All the seed
lots were analyzed for standard germination test (%), root length (cm), shoot length (cm), seedling dry weight
(mg), vigour index-I, vigour index-II, accelerated ageing test (%), seed density (g/cc), electrical conductivity
(S/cm/seed) of seed leachates, dehydrogenase activity test (O D g-1 mL-1), field emergence index and field
establishment (%) and, the association of various seed quality parameters with field emergence rate index were
determined. Results revealed that all the varieties/genotypes showed the germination percentage above the
Minimum Seed Certification Standards (60%) in Lot-A and Lot-B. It was also observed that for standard
germination test (%), root length (cm), shoot length (cm), seedling dry weight (mg), vigour index-I, vigour
index-II, accelerated ageing test (%), seed density (g/cc), dehydrogenase activity test (O D g-1 mL-1), field
emergence index and field establishment (%) decreased significantly and progressively as the ageing period
increased. The electrical conductivity was found negatively and significantly correlated with all seed viability and
vigour parameters. Results also revealed that viability and vigour of seeds declined with faster rate in Lot-C (2½
years old seed). Among all the varieties/genotypes, genotypes DH-224 and DH-228 were found most promising for
various parameters of viability and vigour. The standard germination test, vigour index-I, accelerated ageing test
and vigour index-II emerged as reliable predictors of field emergence rate index.
 
Date 2016-11-10T14:06:50Z
2016-11-10T14:06:50Z
2010
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/84883
 
Language en
 
Format application/pdf
 
Publisher CCSHAU