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In the present investigation, three seed lots (L1 - Freshly harvested seed, L2 - One year stored seed , L3 - Two year stored seed) of fifteen varieties/genotypes of coriander viz., DH-333-1, DH-336, DH-337, DH-338, DH-339, DH-340, DH-341, DH-343, DH- 344, DH-345, DH-352-1 and Hisar Anand, Hisar Sugandh, Hisar Bhoomit and Hisar Surbhi were subjected to study the effect of natural ageing on different seed quality parameters. Correlation coefficient analysis was employed to find out the association among various seed viability and vigour parameter viz., Test weight, Standard germination, seedling length, seedling fresh weight, seedling dry weigth, seedling vigour index-I, seedling vigour index- II, accelerated ageing test, Tetrazolium test, dehydrogenase activity test, electrical conductivity test, pH exudates test and field emergence (%). Test weight was found non significant with field emergence and standard germination. Field emergence (%) was positively and significantly correlated with seedling length (0.765), standard germination (0.853), seedling fresh weight (0.525), seedling dry weight (0.531), vigour index-I (0.826), vigour index-II (0.743), tetrazolium test (0.866), accelerated ageing test (0.693), dehydrogenase activity test (0.817), pH exudates test (0.808) while negatively and significant correlation with electrical conductivity (0.757). Among all the seed quality parameters standard germination and tetrazolium test were found highly correlated with field emergence for all the seed lots hence they can be used as reliable predictors of field emergence (%).
Keywords: Ageing, coriander, correlation, seed quality, seed lots, field emergence (%)