VINOD KUMAR*, T. P. MALIK, AMIT KUMAR AND S. K. TEHLAN
Department of Vegetable Science, CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail : email@example.com)
(Received : January 4, 2017; Accepted : March 14, 2017)
In the present investigation, three seed lots of 15 varieties/genotypes of coriander viz., DH-333-1, DH-336, DH-337, DH338, DH-339, DH-340, DH-341, DH-343, DH- 344, DH-345, DH-352-1, Hisar Anand, Hisar Sugandh, Hisar Bhoomit and Hisar Surbhi were subjected to study the effect of natural ageing on different seed quality parameters. All the seed lots were analyzed for tetrazolium test (viability %), pH exudate test (%), dehydogenase activity test (OD/g/ml), electrical conductivity test (µS/cm/seed) and field emergence (%). Results revealed that tetrazolium test (viability %), pH exudate test (%), dehydogenase activity test (OD/g/ml) and field emergence (%) decreased significantly as the age of the seed increased and electrical conductivity (µS/cm/seed) increased significantly as the age of the seed increased due to loss of membrane integrity. Among all the varieties/genotypes, genotypes DH 339 and Hisar Surbhi were found most promising for various parameters of viability and vigour and can be used for further breeding programmes.
Key words :Ageing, coriander, viability, electrical conductivity, vigour, seed lots