沙枣树的出胶与树龄的关系

对沙枣树(E laeagnus angustif olia L.)的出胶进行了不同树龄的比较.结果表明,成熟林的出胶率低而出胶量高,过熟林则相反,是出胶率高而出胶量低.出胶率高是病虫害侵染所致,而出胶量高则是生理活性强的表现.沙枣树的出胶受自身生理活性作用和受害反应的影响.沙枣树的出胶率和出胶量都随气温的增加而明显增加.建议沙枣胶的生产应该在新疆炎热的南疆地区进行,加强对成熟林和过熟林的管理复壮,有利于提高沙枣树的产胶量.

Study on the Relations between the Quantity of Gum Output and the Ages of Elaeagnus angustifolia

ion:The relations between the quantity of gum output and the ages of Elaeanus angustifolia were studyed.The results were that the rate of gum output in the mature population is low,but the quantity of gum output is high,however,it is opposite to the excessively mature population,that means the quantity of gum output is low in excessive mature population,and the rate is high.The high rate of gum output is infected by diseases and insects,and is strongly deduced from physiological activity.The gum exudation of Elaeagnus angustifolia is the action of physiological activity on them-selves and response to being wounded.The rate and the quantity of gum output will increase obviously with increasing temperature.The production of gum should be put in the south part of Xinjiang area,where the climate is favourable for them to grow.To enhancing the management of Elaeagnus angustifolia plantation is helpful to increase the quantity of gum output.