Seed pelleting with leaf powders of two botanicals viz., pungam (Pongamia glabra) and prosopis (Prosopis juliflora) was done to study the effect of botanical seed pelleting on seedling quality, gas exchange, growth, yield and resultant seed quality parameters of black gram in the laboratory and field. From the results, it was found that, seeds pelleted with pungam leaf powder @ 150 g kg-1 recorded higher germination percentage (93.00), root length (18.35 cm), shoot length (19.34 cm), dry matter production (0.48 mg seedling-10) and vigour index (3505.10). The yield parameters such as pod length, number of pods plant-1, pod yield plant-1, number of seeds pod-1 and 100 seed weight were also found higher in pungam leaf powder pelleting treatment @ 150 g kg-1. The control recorded the least values in all these growth and yield parameters of black gram.
The present investigations were carried out to study the influence of various seed hardening treatments on growth and yield parameters in black gram under drought condition. The black gram cv.VBN 3 was imposed with various seed hardening treatments (i.e.,) MnSO 4 @ 100 ppm, ZnSO 4 @ 100 ppm, Cobalt nitrate @ 1 %, Sodium molybdate @ 100 ppm, KCl @ 100 ppm, Pungam leaf extract @ 1 %, Prosopis leaf extract @ 1% and GA 3 @ 40 ppm. The above treated seeds along with control were evaluated for their seed quality parameters, growth, gas exchange and yield parameters under laboratory and drought field condition. The study revealed that seeds hardened with prosopis leaf extract @1% recorded higher seed yield, yield attributing characters and many seed quality characters as compared to other treatments and control under drought condition.
Pulses are one of the most important legume crops in India contributing significantly high quality protein. Among the legumes, black gram (Vigna mungo L. Hepper), is an important legume crop in our country belonging to the family leguminoceae. The low productivity in pulses may be due to the fact that they are normally grown in marginal lands with inadequate soil moisture and poor fertility status. To increase yield under these circumstances, integrated seed treatment is given as a presowing treatment. Hence, a study was attempted to find out the influence of integrated seed treatments on growth and yield parameters in black gram. The seeds of black gram cv VBN 4 were subjected to various seed treatments and treated seeds along with the control were evaluated for their seed quality, growth, gas exchange and yield parameters both in laboratory and field trials. The study revealed that seeds fortified with MgSO4 + polykote + carbendazim + dimethoate + bioinoculant (Pseudomononas fluorescens) + Rhizobium + Azophos + pelleting with DAP recorded higher seed yield and other parameters when compared to control.
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