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植物失水,细胞不能维持正常紧张所表现的症状叫做萎蔫。由于植物在吸收水的同时也在散失水(如蒸腾),当土壤的水势低于某一数值时,这种水的吸收和散失就不能平衡,散失的水分将多于吸收的水分,植物将失去膨压而发生萎蔫。此时若减少水的散失,水分又可达到新的平衡,因此植物膨压恢复,萎蔫现象消失。从光照、干旱、涝渍、温度、土壤、施肥和病虫害防治等方面来阐述导致盆栽花木萎蔫的原因,并提出相应的防治策落。
The symptoms of dehydration, the cells can not maintain normal tension is called wilting. Since plants also lose water (such as transpiration) while absorbing water, when the water potential of the soil is below a certain value, the absorption and dissipation of such water are not balanced and the amount of water lost will be greater than the absorbed moisture. Loss of turgor and wilting. At this point if you reduce the loss of water, water can reach a new balance, so plant turgor recovery, wilting disappear. The causes of wilting of potted flowers and plants were described from the aspects of light, drought, waterlogging, temperature, soil, fertilization and pest and disease control, and the corresponding countermeasures were put forward.