论文部分内容阅读
1.衰老桐树截枝更新的效果截枝更新是利用休眠芽萌发新枝,恢复树体。油桐混合芽着生于先年生枝的顶端,下部侧芽由于受顶端优势和分泌激素所控制,长期潜伏休眠,不萌发。但当剪去顶芽,失去顶端优势和排除激素对侧芽休眠的控制,改变极性生长和营养物质的转运方向,增强生理代谢活动,促进下部休眠芽的萌发和发枝力。据试验结果表明,衰老桐树截枝后,潜伏芽发枝力极强,枝叶生长快,枝长叶大,比未截枝衰老桐树,枝条生长量高出95.8厘米,中径粗增加0.87厘米。由于截枝后,树体恢复较快,结果量也显著增加。据1982～1984年先后在麻虎乡康银村、凉水乡凉水村,每年对20～30年生、
1. Senility Tong tree cuttings update effect Cuttings update is the use of dormant buds germination of new branches, restore the tree. Tung mixed bud was born at the top of the first annual branches, the lower part of the lateral buds due to the top advantages and secretion of hormone control, long dormant dormant, not germination. However, when the top bud is cut off, the top advantage is lost and the control of lateral bud dormancy is excluded, the polar growth and the transport direction of nutrients are changed, the physiological metabolic activities are enhanced, and the germination and the detrital force of the lower dormant bud are promoted. According to the experimental results, the results showed that the growth of the latent buds was extremely strong after the cuttings were cut, the branches and leaves grew fast, the branch leaves grew larger, the growth rate was 95.8 cm higher than that of the untreated aged tung tree and the diameter of the branches increased 0.87 cm. As the cuttings, the tree recovery faster, the results also increased significantly. According to 1982 to 1984, he served as a health village in Mahu Township and Liangshui Village in Liangshui Township for 20-30 years.