沙糖橘减少黄化死亡延长树体寿命栽培研究

近年在沙糖橘主要产区广东省肇庆市和云浮市，沙糖橘囚黄化而导致低产、果实品质下降、树体早衰甚至死亡的现象剧增。试验处理800株沙糖橘，死亡16株，死亡率2％；对照120株，死亡91株，死亡率75．8％。研究表明：根据沙糖橘生物学特性和年生长发育规律，通过科学管理增强树势，能够减少沙糖橘黄化死亡，延长树体寿命。

Research on reducing etiolation death and prolonging the life of Shatang Mandarin

In recent years, in Zhaoqing City and Yunfu City of Guangdong Provice where is the main production areas of Shatang Mandarin, the phenomenon of premature aging and death of Shatang Mandarin caused by etiolation has been increasing greatly. Etiolation also led to the decrease of yield and fruit quality. 800 plants of the Shatang Mandarin trees were processed in the experiment. The result was that 16 plants died. The mortality rate was 2%. 120 plants were taken in controlled study, and 91 plants died. The death rate was 75.8%. Research showed that to enhance the tree potential through scientific management can reduce the death extend and prolong the lifetime of the tree according to biology characteristics and the growth and development regularity of Shatang Mandarin.