부산대학교 도서관

Temperature stress (cold, heat) during reproductivedevelopment is one of the serious constraints to the productivityof grain legumes as their cultivation is expanding to warmerenvironments and temperature variability is increasing due toclimate change. Grain legumes exposed to temperature below10-15°C or above 30°C show flower abortion, pollen andovule infertility, impaired fertilization, and reduced seedfilling, leading to substantial reduction in grain yield. Formanaging these effects of temperature extremes, it is importantto improve the resistance of grain legumes by usingimproved breeding and genetic engineering tools. In thisreview article, the impact of both high and low temperaturestress on different phases of the reproductive stage, frommeiosis to grain filling, and the sensitivity of differentreproductive organs to temperature extremes are discussed. The review also covers the management options to improveresistance to temperature stress in grain legumes. Furthermore,innovative breeding, genetic and molecular strategies ingrain legumes against temperature stress are also discussed.