1日光温室灾害性天气及对蔬菜生长的历响①冻害一般情况下温室气温达一2～－3℃时，性能好的温室也只有4～5℃，使得温室内喜温性蔬菜如黄瓜、番茄等肴30％一40％植株受冻，上部叶片及生长点结冰，天晴后，揭去草帘，植株象开水烫过一样，叶片失水萎蔫，严重时整株萎蔫下垂死亡 1 solar greenhouse disaster weather and the history of vegetable growth ① frost damage under normal circumstances greenhouse temperature of a 2 ~ -3 ℃, good performance of the greenhouse only 4 ~ 5 ℃, making the greenhouse thermophilic vegetables such as cucumber, Tomato and other dishes 30% to 40% of the plants are frozen, the upper leaves and the growing point of freezing, clear the weather curtain, the plants removed like boiling water, wilt leaves wilt, severe wilt death drooping