Abstract: In order to understand the drought resistance of Euphorbia tirucalli and reveal its differences between the clones and the individuals,so as to selecting and breeding drought resistance Euphorbia tirucalli clones,the drought resistance of 7 clones of Euphorbia tirucalli were studied.The results showed that the clones of the Euphorbia tirucalli had very strong drought resistance.The wilting points of the clones were between 0.9%-2.6%,Shamolv was the most drought resistant line,its wilting point was 0.9%,followed by Haida 5^# and Haida3^#,the wilting coefficient was 1.5%,while the Biganlv was the worst drought resistance line,its wilting point was 2.58%;The wilting points of the individuals were between 0.3%-4.43%,Haida3^#-7 was the most drought resistant individual,the wilting coefficient was 0.3%,followed by the Shanghai-2,the wilting coefficient was 0.4%.There is large difference in drought resistant between the tested Euphorbia tirucalli clones and the individuals of the clones.

Key words: Efficiant energy plant, Euphorbia tirucalli, Drought resistance, Differences

CLC Number: 

• S793.9