tailieunhanh - Nutrient content in grain and straw of different wheat genotypes as affected by moisture stress

Macronutrient specially K and micronutrient malnutrition, and particularly deficiency in zinc (Zn), iron (Fe) and manganese (Mn), afflicts over three billion people worldwide. A pot culture experiment was conducted to study the effect of water stress on potassium and some micronutrient accumulation in straw and grains of wheat genotypes. Eight wheat genotypes were grown, 4 tolerant and 4 susceptible against water stress for the experiment. Moisture stress treatment to plants was given at anthesis through withdrawal of water. Soil moisture status of pots subjected to stress treatment was maintained throughout the grain growth period. Schedule routine of irrigation was practiced for control plants throughout the crop growth period. Moisture stress caused changes in nutrient balance of the plants. K, Zn, Fe and Mn concentration were measured both in straw and grain under control and water stress condition at the time of harvesting. Harvest index and 1000 grain weight were also recorded. Mean reduction in harvest index and test weight (1000 grain weight) of seeds was noted in all the genotypes. | Nutrient content in grain and straw of different wheat genotypes as affected by moisture stress