Insufficient Soil Moisture Effects on Plant Leaf Area and Methods for Reducing Water Consumption In the long-term evolutionary process of cultivated rice, two ecotypes, rice planted in suitable paddy fields and upland rice (upland rice) planted in dryland were formed. Upland rice can achieve its growth cycle when it is not irrigated during its whole growth period or when it is supplemented with adequate irrigation during severe drought. It has strong drought resistance capacity, and its total water use per unit area during the entire growth period is less than 20% of rice. What kind of measures can be used to offset the shortage of dry rice?
By using the handheld leaf area meter to measure the leaf length and leaf width of upland rice, it was found that under water stress conditions, the variation of leaf length was greater than the leaf width, and in the case of drought, the leaf length was greater than the leaf width. Drought at the same time also affects the leaf speed of new leaves, slowing down the leaf speed and reducing the leaf age. However, there is a certain relationship between the yield of upland rice and the leaf area of ​​rice. The soil moisture measurement instrument is used to measure soil moisture in dry fields, and scientific and reasonable irrigation is conducted according to the actual conditions of soil moisture.
Under drought stress, the leaf area decreased significantly, and the decrease in leaf area was positively correlated with plant height in paddy field cultivation. There was a linear relationship between leaf area reduction and plant height in paddy field cultivation. Under drought conditions, transpiration can be effectively reduced by reducing plant height and leaf area, which is a manifestation of drought resistance of rice. Therefore, in the case of drought, it is possible to appropriately reduce the leaf area of ​​rice so as to reduce the transpiration of rice, thereby reducing the waste of soil moisture in rice.
In arid regions, when rice is planted, those species that have relatively high drought resistance capacity can be used to reduce the loss caused by insufficient moisture. However, during the planting process, a soil moisture temperature detector is used to measure soil moisture and change according to moisture. The situation for proper irrigation.
By using the handheld leaf area meter to measure the leaf length and leaf width of upland rice, it was found that under water stress conditions, the variation of leaf length was greater than the leaf width, and in the case of drought, the leaf length was greater than the leaf width. Drought at the same time also affects the leaf speed of new leaves, slowing down the leaf speed and reducing the leaf age. However, there is a certain relationship between the yield of upland rice and the leaf area of ​​rice. The soil moisture measurement instrument is used to measure soil moisture in dry fields, and scientific and reasonable irrigation is conducted according to the actual conditions of soil moisture.
Under drought stress, the leaf area decreased significantly, and the decrease in leaf area was positively correlated with plant height in paddy field cultivation. There was a linear relationship between leaf area reduction and plant height in paddy field cultivation. Under drought conditions, transpiration can be effectively reduced by reducing plant height and leaf area, which is a manifestation of drought resistance of rice. Therefore, in the case of drought, it is possible to appropriately reduce the leaf area of ​​rice so as to reduce the transpiration of rice, thereby reducing the waste of soil moisture in rice.
In arid regions, when rice is planted, those species that have relatively high drought resistance capacity can be used to reduce the loss caused by insufficient moisture. However, during the planting process, a soil moisture temperature detector is used to measure soil moisture and change according to moisture. The situation for proper irrigation.