1999/2 0 0 0年度 ,澳大利亚昆亚兰州北部棉区遭受了较严重的日灼伤问题 ,一些棉花的大部分叶子干枯脱落。最高温度为 1 7℃左右的阴雨、强风天气过后 ,天气骤晴 ,为害症状很明显 ,既使棉花叶片局部被灼伤 ,但后来整片叶子就变干枯了 ,这可能是由于光合作用的通道被中断所引起 In 1999/2, the northern cotton quarantine area of ​​Queensland, Australia, suffered more serious sunburn problems, with most of the leaves of some cotton plants wilting off. The maximum temperature is about rain at about 17 ℃. After the strong windy weather, the weather became clear and the damage symptoms were obvious. Even if the cotton leaves were partially burned, the whole leaves became dry and dry afterwards. This may be due to the photosynthesis pathway being blocked Disruption caused