Analysis of Cucumber Stalk Cracking
Recently, many vegetable farmers have reported that the stems of the lower rootstocks of cucumber seedlings that have not been planted soon have cracked, resulting in slow plant growth, and in severe cases, the plants will wilt and die. In general, this situation is a physiological problem of cucumbers, which has a greater relationship with the current temperature and humidity environment and agricultural management.
Symptoms
1. The rootstock at the base of the stem is cracked: the rootstock at the base of the stem is whitish and cracked.
2. For severely cracked plants, the growth of plants is relatively slow due to poor transportation of water and nutrients.
3. When the humidity in the shed is high, the cracked parts are prone to infestation by pathogens such as vines and bacteria, causing the diseased parts to turn yellow and rot, and in severe cases, the plants will wilt and die.
Cause analysis
1. Uneven dryness and wetness in the shed, uncoordinated plant growth. When the temperature is high, the water evaporates quickly, and it is easy to dry and wet in the shed, which will lead to the inconsistent growth of the plant and the inconsistent growth of the stem inside and outside, which will cause the occurrence of stalk cracking.
2. The drastic change in temperature affects the growth of the plant, which will cause the plant to wilt and cause damage to the outside of the stalk. In severe cases, the stalk may even appear white. These damaged stalks are prone to cracking later.
3. The damage caused by other factors will damage the cortex of the rootstock, and it will not be able to form new tissues normally during the later growth, and the uncoordinated internal and external growth will lead to cracking.
Mitigation suggestions
1. Select strong seedlings and remove weak seedlings with damaged rootstocks at the base.
2. Try to avoid sudden dry and wet conditions: water properly according to weather conditions and soil humidity, water for planting water thoroughly, the second and third water should be small and timely, and the water should be properly controlled after slowing the seedling.
3. Shade in time to avoid high temperature and strong light from scorching the plants, especially at noon on a sunny day and when the weather is suddenly sunny.
4. For plants with cracked stalks, control watering and reduce the humidity in the shed.
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