EFFECT OF 1-NAPHTHALENEACETIC ACID ON THE FORMATION OF THE PHOTOSYNTHETIC APPARATUS AND YIELD OF TOMATOES

Abstract

The article is devoted to studying o f the action o f synthetic growth stimulator with auxin mechanism o f operation - 1-naphthaleneacetic acid on morphometric indicators on the yielding capacity o f tomatoes. The results o f the research suggests that variety o f Bobcat tomato crops by using 0,005 % preparation solution in a budding phase has positively influenced on the formation o f crop photosynthetic apparatus in coenosis.We have established that due to the action o f growth stimulator the number o f leaves o f studied plant has significantly increased, the total area o f leaf surface has risen and the indicators o f humid and dry substance weight in the leaves have increased.It has shown that 1-naphthaleneacetic acid has thickened the leaf plates o f tomatoes plants by the overgrowth o f chlorenhyma - cells o f basic assimilative tissue. The results o f three years o f studies suggest about the increasing indicator o f photosynthesis net productivity in average on 62 % and the leaf index on 44 % compared with control.The analysis o f the given results suggests that the increasing o f the area o f leaf surface, the number and weight o f the leaves, the improvement o f leaf's mesostructure organization and the increasing o f photosynthesis net productivity indicators have led to the significantly increasing o f the yield o f tomatoes.