Biochemical Studies of Selected Pulses in Response to Heat, Photoperiods and Carbon Nanoparticles

Abstract

The productivity of the pulses in India is sufficiently low even less than 1 ton per hectare compared to wheat and rice. Among all other pulses, Chickpea comprises of 45-50% of the total pulses production of India and shares approx. 75% of global chickpea production. Under the present investigation, two crops of pulses were taken e.g. blackgram (Urd bean) and chickpea. Among pulses, Black gram Vigna mungo or urad is one of the most highly prized pulses of India. Blackgram is very sensitive to phptothermoperiods and high temperature. Yield variation in blackgram across the location is primarily caused by photoperiods and thermoperiods followed by high temperature and drought. Photo-thermo-insensitivity in blackgram is very rare. For wider adaptation, and optimum production it is essential to develop thermo-photoinsensitive varieties with adequate thermotolerance. High temperature exceeding 350C coupled with drought lead to poor biomass accumulation, retards pollen germination, flower abortion, poor grain filling and grain yield.of blackgram. With an objective to improve blackgram productivity, development of photo-thermoinsensitive varieties is necessary, therefore the paper was undertaken to understand the biochemical basis of photothermosensitivity. Similarly wild chickpea germplasm need to be explored to develop tolerant varieties to abiotic stresses.