Effects of Nitrogen and Water Deficiency on Agronomic Properties, Root Characteristics and Expression of Related Genes in Soybean

Drought and insufficient nutrient supply are the main limiting factors for field crop production; therefore, present study aimed to investigate responses of four registered soybean varieties limited nitrogen (N) in combination with drought stress. Plants were grown tubes filled silica sand, under open-air conditions. Water shortage was initiated at three-leaf stage by providing 50% water, N deficiency obtained reducing content half-strength Hoagland solution 50%. did not influence grain yield, while it significantly increased root dry biomass Boglár Pannónia Kincse. Compared supply, effects water dominant development. The expression levels investigated genes also showed genotypic variations. Inducible nitrate reductase1 gene N-deficient conditions decreased Kincse level aldehyde dehydrogenase abscisic acid 8’-hydroxylase 3 combined stress Summarising agronomic physiological characteristics, Sinara sensitive drought, Bagera but produced highest yield watering each treatment, tolerant well-watered