Effect of Water on Leaf Shedding of Euonymus japonicus
As a landscaping material, Euonymus japonicus can not ignore its ornamental quality while controlling its growth. The leaves of Euonymus japonicus are green and extremely resistant to pruning, which is a common hedgerow species in the garden. Due to its highly adaptable nature, the provinces across the country are generally cultivated. In addition, Euonymus japonicus has strong resistance to carbon dioxide and has a strong ability to trap dust, which has great advantages for purifying air. Therefore, studying the growth of Euonymus japonicus is a hot topic in recent years. This article mainly through the multi-point soil temperature and humidity recorder to study the effect of soil moisture on Euonymus japonicus leaves, the following is the result of the study.
Leaf shedding is a common response strategy when plants are subjected to drought stress. The effect of moisture on leaf shedding of Euonymus japonicus was divided by moderate stress. There were two kinds of situations. One of them was mild stress and almost no effect on leaf shedding. Under moderate stress, leaf had shedding phenomenon, and the stress increased, shedding number decreased. However, the number of leaf shedding was generally small. The average number of shedding at the 8th week was 3.4. The second shedding phenomenon was severe leaf shedding. The shedding number was nearly twice that of moderate stress. The number of leaf shedding in each stage of the two processes was also significantly different (P less than 0.01). Through daily observation, under heavy stress, there was more leaf shedding of Euonymus japonicus, especially to the late period of stress, the plants were paralyzed to death, and the leaves were scarce, which was not conducive to ornamental. If the plants were planted as ground, they could not cover the loess. Although the moderate stress leaves have fallen off, they are basically in balance with the newly-developed leaves, which has little effect on their ornamental value.
Therefore, it is very necessary to monitor soil moisture with a soil temperature and humidity recorder. Knowing the dynamic changes of soil moisture in time will help promote the growth of Euonymus japonicus, and it will have a greening effect on the city.