SU1132883A1 - Stimulator for tobacco growth - Google Patents

Abstract

The use of 4-amino-3,5,6-trichloropyridin-2-carboxylic acid as a stimulator of tobacco growth. about

Description

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The invention relates to chemical means for stimulating the process of leaf formation of tobacco plants and can be used to accelerate growth and ripening, increase the yield and yield of expensive light tobacco varieties.

It is known to use phytohormones as stimulators of plant growth 1.

It is also known to use Y- (indolyl-3) -buttonic acid (IMC) as a stimulator of tobacco growth 2.

However, the use of known growth stimulators is not effective enough.

The purpose of the invention is to increase the stimulating activity and increase the yield of tobacco plants.

This goal is achieved by using 4-amino-3..5, b-trichloroiridine-2-carboxylic acid as a tobacco growth promoter.

Previously, 4-amino-3,5,6-trichloropyridine-2carboxylic acid was used as herbicide 3.

Example. Based on the results of the vegetation experiment (Table 1), seedlings of American-17 variety tobacco in the phase of 3-4 leaves are treated with a solution of 4-amino-3,5,6-trichloropyridine-2-carboxylic acid (picloram) prepared at the rate of 5 μg Piclorama on 1 liter of water.

The treatment is carried out once: by pouring from a sprinkler at a solution consumption of 1 l per 1 m of area. After 10 days, seedlings are planted in the field. Further cultivation of tobacco is carried out according to the existing technology. The treatment of the predispositions with stimuli accelerates the flowering and maturation of tobacco leaves for 2 weeks. As a known stimulator, use is ((indole-3) -buttonic acid (IMC). The effect of piclorama and IMC on the growth of tobacco plants (in% of the control) is given in Table. one.

The effects of picloram and BCI on the growth of tobacco plants (/ o control) are presented in Table. 2 (field trials - an area of 25 sq. M, repetition 5 4 times) and testify to the effectiveness of the use of piclora. M: the weight of leaves, stems and roots increases.

Thus, the data table. I and 2 indicate an increased stimulus: the feeding activity of piclorama is compared with the cr- (ind; olyl-3) -larus K:.) Slot.

In tab. 3 presents data on the effect of piclora on the assortment composition of tobacco.

The obtained data is SB1; they show an increase in the yield of expensive light varieties. .

Thus, the use of piclora. Ha as a sti. Mullator of tobacco growth allows to increase the yield and yield. expensive CODTO-B tobacco.

Options

Height pacTeHrtt ,, Bes lis.tyev, smg

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