Study of growth and physiological response of Frankia primed tomato seed under peg-induced drought stress
Student name: Mr Saurav Singh Chilwal
Guide: Dr Sonika Gupta
Year of completion: 2017
Host Organisation: DIBER, Haldwani, Uttarakhand
Supervisor (Host Organisation): Dr S. M. Gupta
Abstract: Low agricultural productivity in the degraded lands due to poor nutrients (nitrogen) in the soil has been a result of human disturbance, and other living disturbances such as fungi or harmful insects and stressors often, intangible, factors such as intense sunlight or wind.
Among the abiotic stresses, natural calamity such as draught is the main reason for the loss. Drought affects plant growth badly and results in poor productivity. Nitrogenous bacteria such as Frankia are grown symbiotically with actinorhizal plants in such dissipated lands so as to renew or increase the soil fertility. It has been seen that the symbiosis of Frankia and these actinorhizal plants can extenuate the effects of stressors. On the whole, PGPR, alleviated the growth of plants by supplying the minerals such as nitrogen, phosphorus, etc. or by regulating the hormone levels or circuitously by tapering off the effects of various disease causing agents and raising the use of Frankia which lowers the risk of assorted bio-chemicals which ill the agro-ecosystems. This study was carried for the isolation, identification and molecular characterization of the Frankia spp strains from the root nodules of the Casuarina plant of Kumaon area of Uttarakhand, India and also to evaluate the effect of Frankia isolates on growth and germination, physiochemical response and photosynthetic pigments under PEG mediated drought tolerance. The significant increase in various growth parameters of Frankia primed tomato seeds was obtained as compared to non-primed seeds (control) under different PEG concentrations.
