Influence of Seasons and Nutrient Invigoration on Seed Quality in Greengram

The influence of seed invigoration on seed yield and quality was studied in two seasons, i.e., summer and kharif. Among the seasons studied, seed quality parameters significantly differed for both seasons. Summer recorded the highest values in growth and yield parameters, viz., field emergence and plant population at harvest (91.75 and 87.75 %, respectively), number of nodules (35.71), seed yield (q/ha) (3.49), and seed quality parameters, viz., seed germination (%) (g) (91.7), and seedling vigour index I and II (3392 and 2252, respectively). But the lowest hard seeds were recorded in kharif (71.71%). Among treatments studied, 1 % ZnSO4 recorded the highest values in growth and yield parameters, viz., field emergence and plant population at harvest (96.50 and 91.17 %, respectively), number of nodules (38.50), pod length (cm), and number of seeds per pod (11.00 and 12.23, respectively). also in seed quality parameters, viz., seed germination (%) and 100 seed weight (g) (94.7 and 3.78, respectively), shoot length and root length (25.93 and 14.51 cm, respectively), mean seedling length (cm) and mean seedling dry weight (mg) (40.44 and 278, respectively), seedling vigour index I and II (3829 and 2636, respectively), and total dehydrogenase activity (A480nm) (1.825).