ALLEVIATING THE DETRIMENTAL IMPACTS OF SALT STRESS ON MORPHO-PHYSIOLOGICAL AND YIELD CHARACTERS OF RICE PLANTS {ORYZA SATIVA L.) USING ACTOSOL, NANO-Zn AND NANO-Si

摘要

Pot experiments were conducted during 2017 and 2018 seasons to study the effect of Actosol, Actosol+Zinc and Actosol+Silica nanoparticles on Morpho-physiological and yield characteristics of two rice varieties (Giza 177 salt-susceptible and Giza 179 salt-tolerant) under salinity conditions. Application of Actosol, Actosol+Nano Zn and Actosol+Nano Si minimized the bad effect of salinity in salt stressed treated plants compared with control of two rice varieties in both seasons. Giza 179 gave the best results of root fresh weight, root length, plant height, number of tillers, panicle number, 1000-grain weight, number of filled grains and grain yield plant-1 of the treated plants with Actosol under salinity level at 4000 ppm, while salinity (6000 ppm) recorded the lowest values of the most studied characters compared with Actosol+Nano Zn and Actosol+Nano Si treatments. The highest levels of CAT and POX were obtained with Actosol+Nano Si compared with other treatments in Giza 179.