Research On Inhibitor Of Mulberry Treetop

This thesis studies the effect of those sold-in-market plant growthregulators and herbicides by spraying them onto mulberries, based onwhich a duplicated plant growth suppressive agent is roughly Selected.This suppressive agent is called Shashaoling, which will be applied inthe further experiment of analysis on mulberries. The result of theexperiment indicates, when the mulberries were sprayed with this agentof 635.5mg/L, terminal buds of these mulberries would be dead in sevendays and axillary buds of the below five true leaves would die in fivedays. However, when the mulberries were sprayed with this agent of 425mg/L, on the seventh day the terminal buds did not die for lack of waterbut became curly, but axillary buds of the below five true leaves hadbeen dead. The mature leaves still were not affected and the leaves'color was normal with their size having no contrastive difference fromthose of the control group. Moreover, when sprayed with agent of 318.7mg/L, the appearance of both the terminal buds and the axillary buds werenot affected. A further study was also indicated that when the leaveswere sprayed with agent of 425 mg/L, the leaves' content of soluable sugarincreased both on the seventh and fourteenth day after spraying, andthe contents of protein, nitrogen and phosphorus did not absolutelyincrease. When sprayed with agent of 635.5mg/L or 318.7 mg/L, none ofthe leaves' contents of soluable sugar, protein, nitrogen, phosphorusand potassium increased absolutely. A water content testing of the threegroups of sprayed leaves showed that compared with the control group,the leaves' water content of all three groups decreased but notobviously.