论文部分内容阅读
本文主要探索幼龄无性系针刺采胶的可能性。1976—1979年试验表明,树围50厘米以上的幼树,在合适的刺激强度和采胶强度的调控下,其干胶产量不仅比常规刀割高,而且比同采次的刺激刀割高,树围生长量抑制亦较少。树围30—49厘米的幼树,干胶产量、产量递增率和干物质分配率均较低,树围生长抑制严重。因此,从适当提早投产、又尽量减少副作用考虑,初步认为,海南地区幼树以离地100厘米处有50％树围达到45厘米以上为针刺采胶标准。本文还研究了原针孔产胶机能的恢复状况。结果表明,树围50厘米以上的胶树,原针孔树皮经三年再生,已达到同高度原生皮的产胶水平,树围50厘米以下的胶树尚未完全恢复。其它副作用尚不显著。
In this paper, we mainly explore the possibility of needle aspiration of young clones. From 1976 to 1979, the results showed that under the control of the appropriate stimulus intensity and harvesting intensity, the sap yield of saplings more than 50 cm in height was not only higher than that of the conventional knife, but also higher than that of the same cutting knife. Wai Wai growth inhibition is also less. Saplings 30-49 cm young saplings, dry glue production, yield increment rate and dry matter partition rate are low, the tree circumference growth inhibition is serious. Therefore, from the appropriate early put into production, but also to minimize the side effects, initially believed that the young tree in Hainan to 50 cm from the ground at 50% of the tree circumference of 45 cm or more acupuncture for plastic mining standards. This article also studied the recovery of the original pinhole glue machine performance. The results showed that the gum tree with a circumference of 50 cm or more and the original pinhole bark after three years of regeneration had reached the level of the same level of primary skin rubber production, trees around 50 cm below the gum tree has not fully recovered. Other side effects are not significant.