Abstract: The purpose of this study was to study the effects of TSINGKE water retaining agent on physiological and biochemical characteristics and plant morphology of indoor greening plant Epipremnum aureum, so as to provide reference for the application of water retaining agent in drought resistance of indoor greening plants. The method was to use Epipremnum aureum as the experimental object, under natural drought stress, using water control pot culture method, make the dosage of water retaining agent and the weight ratio of basin to soil 0(control), 0.05%, 0.10%, 0.15%, 0.20% concentration gradient respectively, to detect the changes of external morphological indexes and internal physiological indexes of Epipremnum aureum. The results showed that after the application of different concentrations of water retaining agent, the performance of lüluo was different in different periods, the difference of each index in the early stage was small, and the difference in the later stage was large. The index change time of the control group was earlier than that of the experimental group, and the overall performance was as follows 0.10% treatment>0.15% treatment>0.20% treatment>0.05% treatment>0 treatment, it cluld be seen that a certain concentration of water retaining agent could delay the decline of green pineapple and improve the ability of water retaining and drought resistance, and the water retaining agent with the concentration of 0.10% had the best performance. The results showed that under drought stress, the growth and biomass of Epipremnum aureum were inhibited under different conditions. In the experimental group with water retaining agent, the inhibition effect was significantly less than that of the control group. The results showed that the addition of TSINGKE water retaining agent had a certain effect on the external morphology and physiological indexes of Epipremnum aureum. After the application of different concentrations of water retaining agent, the growth and physiological indexes of Epipremnum aureum would show varying degrees of change. The application of water retaining agent could improve the ability of water absorption and water retention, slow down the senescence process and improve the resistance to drought stress. Therefore, in the later stage of the water retaining agent into the practical application process, we need to combine different plants to develop different water retaining agent application scheme, in order to give full play to the water retaining and drought resistance ability of water retaining agent.

Key words: Epipremnum aureum, TSINGKE water retaining agent, Water absorption and water retention, Natural drought stress, External morphology, Physiological index

CLC Number: 

• TU985