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杜仲(Eucommia ulmoides Oliv)为我国特有经济树种,其皮自古以来为名贵中药材,国内及援外出口需量极大,但由于杜仲生长周期长,采皮后导致树木死亡,资源日竭,供需矛盾突出。七十年代中,开展了杜仲环剥再生皮试验研究,取得了一定成效。但因环剥后缺乏有效的防护措施,致使柔嫩新皮极易污染溃烂,甚至整株死亡,有碍环剥再生技术的推广应用。我场经多年环剥试验表明,由于污染烂皮导致植株枯死的死亡率可高达100%。为探索有效的防护措施,减少损失,我们于1980—1984年进行了杜仲环剥烂皮发生规律及防治技术试验。经防治后,环剥存活率稳定在80%左右。在最佳季节环剥,采用最佳防护处理,存活率达94%,再生皮生长良好。
Eucommia ulmoides Oliv is a peculiar economic species in our country. Since its ancient times, Eucommia ulmoides Oliv is a precious Chinese medicinal material. Its export volume is very great both at home and abroad. However, due to the long growth period of Eucommia ulmoides Oliv, the dead trees, prominent. In the seventies, carried out the eucommia girdling skin regeneration test, and achieved some success. However, due to the lack of effective protective measures after circumcision, the tender new skin is very easy to pollute and ulcerate, even the entire plant is dead, which hinders the popularization and application of the recycling technology. My field after years of girdling experiments show that due to contamination of the skin caused by dead plants death rate can be as high as 100%. In order to explore effective protective measures to reduce losses, we carried out in 1980-1984 Eucommia ring peeling law and prevention and control of technical tests. After prevention and treatment, the survival rate of ring peeling stable at about 80%. Girdling in the best season, using the best protective treatment, the survival rate of 94%, regenerated skin growth well.