The study attempts to measure the total benefits from rice varietal improvement research in China and India using variety adoption and performance data over the last two decades. It then uses genetic or pedigree information to partition the total benefits between these two countries and IRRI....

Intensive double or triple monocropping of rice has caused degradation of the paddy micro environment and reductions in rice yield growth in many irrigated areas in Asia. Problems include increased pest infestation, mining of soil micronutrients, reductions in nutrient-carrying capacity of the...

This paper examines the sensitivity of rice yield in Nepal to changes in climate variables and the magnitude of potential impacts on rice productivity in the future. Our findings draw attention to the differential impacts on rice yield depending on which stage of rice development is affected. We...