1Department of Biochemistry, Punjab Agricultural University, Ludhiana, 141004, India
2Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, 141004, India
*Author for correspondence: E-mail: suchetasharma_pau@pau.edu
Online published on 6 November, 2013.
The hardseededness in 10 genotypes of three Vigna species varied from 14-82% at 24 h and 8-68% at 48 h of soaking and decreased with storage of seeds up to 180 days under ambient conditions. The lignin content in seed coats and reducing sugars and total lipid content in cotyledonary tissues varied significantly. Germination and vigor index were higher in soft lines as compared to hard lines at harvest and these traits increased with the storage period in hard lines at room temperature. Activity of lipid peroxidation in seeds increased significantly with storage period whereas catalase and peroxidase activities decreased. The total lipid content in seeds of all the Vigna species decreased, whereas phenolic content increased with the storage period.
Vigna species, hardseededness, biochemical parameters, lipid peroxidation, antioxidant enzymes
