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在锡兰的所有橡胶植区都能看到树皮爆裂的现象,PB86最易发生这种病征,但是,详细考察的结果表明,这种病态与土壤或环境因素无关。本文报导胶树爆皮流胶时的组织变化及检验病原的结果。一、材料在商业胶园的5龄 PB86和 PB5/63无性系,采集显现症状的树干、大枝条和绿皮顶生枝条。取一部分未成熟的、带有症状的绿色顶生枝切成小片,用甲醛水-醋酸-酒精固定液(FAA)固定,然后用石腊包埋。另外部分则用
The bark rupture was visible in all rubber plantations in Ceylon. PB86 was the most susceptible to this condition, but the results of a detailed examination showed that the pathology was not related to soil or environmental factors. This article reports the gum tissue gel gum cracked change and test the pathogen results. First, the material in the commercial rubber plantation age 5 PB86 and PB5 / 63 clones, collected symptoms of the trunk, branches and green tops branches. A portion of immature, symptomatic green top branches were cut into small pieces, fixed with FAA, and then embedded with paraffin. The other part is used