Study on the effect of water stress and nitrogen on rice growth

Rice genotypes including Liufu A,Fengyou NO2,Lianjing NO11 grew under different water stress condition and the impact of different forms of nitrogen were observed and analyzed on the changes arising from its seedling.The results showed that: nitrate content of different varieties of rice leaf and root increased with increasing nitrate nitrogen concentration in the nutrient solution.Water stress(10% PEG solution) could significantly increase the contents of leaves and roots of nitrate.Ammonia nitrogen and nitrate have the same anti-trend; certain degree of water stress on root growth was beneficial,due to accelerating the growth of root system,but the increases of all varieties of rice increased differed.