水稻热害研究综述

Review on High-temperature Stress to Rice

热害已成为影响水稻生产的主要灾害之一。开花期高温会造成水稻颖花不育、结实率降低,灌浆期高温会导致籽粒灌浆不饱满、粒重减轻。水稻热害不仅影响水稻的光合作用、质膜透性、淀粉合成、可溶性糖及脯氨酸等生理生化指标,还会影响水稻的产量和品质。

High-temperature stress is one of the major disasters to rice production.If high temperature stress occurred at heading stage,rice glumous flower will be infertility and fruit bearing percentage decreasing.If high-temperature stress meet at filling stage,grain-filling would fail and grain weight would be lessen.High temperature stress not only has the impact on the physiological and biochemical indexes,such as,rice photosynthesis,membrane permeability,starch synthesis,soluble sugar,proline and so on,but also on rice yields and quality.