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Subject: Vegetable Science × Author: Anil Kumar × End date: 2009 × Start date: 2002 × Type: Thesis ×
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    ThesisItemOpen Access
    “Seed quality assessment in naturally aged seed of coriander (Coriandrum sativum L.)
    (CCSHAU, 2007) Anil Kumar; Tehlan, S.K.
    The present study was carried out on ten genotypes of coriander (DH-202, DH-205, DH-206, DH-208, DH-228, DH-234, DH-242, DH-266, Hisar Anand and Pant Haritma with the objectives to study the effect of natural ageing on seed quality parameters in coriander by various tests and parameters viz ; test weight, standard germination test, tetrazolium test, seedling length, seedling dry weight, electrical conductivity of seed leachates, speed of germination, vigour index-I, vigour index-II, dehydrogenase activity test and field emergence index and, to determine the association of various seed quality parameters with field emergence. The viability and vigour of seeds declined to varying degrees in different genotypes of coriander during xv ambient storage. Genotypes DH-208 and DH-266 were found most promising for various parameters of vigour and viability. Genotypes DH-205, DH-206, DH-208, DH-266, Hisar Anand and Pant Haritma retained standard germination above 60 % in the one year old seed lot. During natural ageing, the standard germination, seedling length, dry weight, vigour index-I and vigour-II, viability percentage and test weight decreased significantly and progressively with ageing period. The interaction among genotypes and ageing period was found significant for all the characters under study except standard germination test, vigour index II and tetrazolium test (seed viability). The test weight, standard germination test, vigour index-I, dehydrogenase activity test and tetrazolium test emerged as reliable predictors of field emergence index.