SU1634207A1 - Regulator of growth and development of plants - Google Patents

Description

one

(21) 4473262/15

(22) 08/15/88

(46) 03/15/91. Bnsh. ten

(71) Kalinin State University and Institute of Plant Physiology and Biochemistry of the Academy of Sciences of the MSSR

(72) I.P.Gorelov, S.S.R. Sentsky, S.I.Tom, A.A.Stefyrtsa, O.I.Spaparenko, I.F.Anisimova

and A.P.Baremboydt

(53) 631.811.98 (088.8)

(56) P sensky S.S. Synthesis and study of the acid-base properties of the complexes of ethylenediamine derivatives. - Problems of chemistry of comics, Kalinin, KSU, 1985, p. 101-107.

Yagodin B.A., Derzhavin L.M. , Litvak Sh.I., Efremov E.I., Aristarkhov A.I., Dtlova N.M., Kireeva A.Yu. , Lavrova O.A. The use of complexonates in agriculture. - Chemistry in agriculture, No. 7, 1987, p. 42-46.

(54) PLANT GROWTH AND DEVELOPMENT REGULATOR

(57) The invention relates to agriculture and can be used in agrotechnical measures,

aimed at suppressing vegetative growth, strengthening the bookmark of fruit buds and increasing the winter hardiness of fruit trees. The aim of the invention is to increase the efficiency of regulating the growth and productivity of fruit trees and expanding the range of growth regulators. The known complex compounds of ethylenediamine-N, M-bis (A-ox-x-o-oxypropionic) acid (EDDOP) with metal cations (MD and Zn) are used as a plant growth and development regulator. The EDDOP complex with metals has a retardant effect on the growth of vegetative shoots in length and stimulating the budding of buds, an increase in the content of pigments, which generally has a favorable effect on the manifestation of the potential productivity of the variety. The most effective was the treatment of the leaf apparatus with an aqueous solution in a concentration of 0.15-0.25%. The effect of growth regulation is achieved both with the use of EDDOPa with Md and Zn separately, and with their equimolar combination. 4 tab.

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The invention relates to agriculture and can be used in agrotechnical measures aimed at suppressing vegetative growth, strengthening the budding of fruit buds and improving the winter hardiness of fruit trees.

The purpose of the invention is to increase the efficiency of regulating the growth and productivity of fruit plants, ensuring environmental protection, expanding the range of growth regulators.

PRI me R. For experimental verification of the proposed growth and development controllers, the effect of 0.05; 0.15; 0.25; A 0.35% aqueous solution of EDDOP complexes with magnesium and zinc, as well as their combination in equimolar amounts on the intensity of physiological processes, growth and development of blonii trees growing under controlled conditions of the Be-5 of the anthropogenic complex of the Institute of Plant Physiology and Biochemistry, AN MSSR. The results of years of experience are presented in table. 1-6.

The experimental data obtained indicate that ethylenediamine-M, N -bis (y-hydroxy-oxypropionic) acid with metals has a retardant effect on the growth of vegetative shoots in length and stimulation of the idea fruit buds. And the most effective was the processing of the leaf apparatus with aqueous solutions of the studied drugs in a concentration of 0.15-0.25% (Table 1). -; 20

As can be seen from the table. 1, spraying blonii trees with a complexion of Zn-EDNA in a concentration of 0.15–0.25% causes a 12–20% inhibition of shoot growth compared with control untreated plants and an increase in the number of fruit formations by 24–34%. When using Zn EDDP of the same concentration range, growth of races in length is increased by 14–16% and the increase in the number of rings by 30–39% of the control value. Therefore, Zn EDDOP complexone has a more significant effect on the growth and development of trees, stimulating the formation of fruit buds. Spraying the leaf apparatus of trees with a 0.05% aqueous solution of the studied substances, although it causes a slight slowdown in linear growth and an increase in the number of tree rings on the tree, but the differences are not significant (Table 1). The processing of the leaf apparatus with a 0.35% solution of the nato complex in Zn EDDYK and Zn EDDOP results in an insignificant but significant reduction in the number of annuli, which seems to be a consequence of a decrease in the synthetic ability of the leaves due to the appearance of chlorophyll-free - J spots on the leaves of treated plants of this variant.

The effect of regulating the growth and development of bony trees is achieved as with the use of complex compounds,

EDDOPa with Md and Zn separately, and their equimolar combination (Table 2). - As can be seen from the table. 2, reliable, suppression of linear growth of shoots

occurs when spraying trees, 15% aqueous solution of MD DEDP (

and Zn EDDOP in a ratio of 1.0: 1.0. Trees treated with a mixture of EDDOP complexates with these metals are also distinguished by a large number of laid fruit buds.

In tab. Figure 3 shows the three-year results of studies of the effects of the EDDYAK and EDDOP complex compounds with metals on the height of the blond trees, trunk diameter at a level of 10 cm above the soil, length of vegetative shoots. Treating trees with an aqueous solution of EDDNUC complexant with metals. Conditions the inhibition of shoot growth in length by 15–34% of the control; EDDOP - by 20-30%. Already after 3 weeks, after treating the trees with these preparations, a significant slowdown in the growth processes is seen. Further, the observed phenomenon — inhibition of linear growth — is preserved, and the budding of the apical bud occurs earlier in the experimental plants. The EDDNA and EDDOP complexonates have a similar effect on tree height (Table 3).

From tab. 3, it can be seen that the growth of trees in thickness after treatment with metal complexins increases reliably. So, this indicator for blony trees treated with complex EDDNA compounds in 1988 is 125%, EDDOP - 167% of the thickness of the stem of control, untreated trees.

The morphological characteristics of the vegetative shoots of plants treated with metal complexates allows us to conclude that the slow growth of vegetative shoots in length occurs under the action of EDDOP mainly due to the shortening of internodes, the number of which remains unchanged (Table 4).

As can be seen from the table. 4, under the influence of new complexonates in blon trees, the surface of the leaf apparatus increases by increasing the size of the plate. After spraying the plants with 0.15% water EDDNA with Md and Zn (1: 1 vol.h.), the leaf area increases by an average of 8-19% j EDDOP - 10-30% compared to the leaf area of control plants.

516

The treatment of plants with metal com- plexes with EDDNA and EDDOP has a positive effect on the content of green and yellow pigments in the leaves (Table 5), which should contribute to a better utilization of light energy and increase the synthetic ability.

The experimental data obtained allow us to conclude that the complex compounds of ethylenediamine-N, N-bis- (I-hydroxy- (U-oxnpropionic) acid, as well as the complexions of ethylenediamine-N, N (-duccinic acid, have the ability to increase the content of green pigments, thereby increasing the synthetic abilities of the leaves.

Improving the physiological state and metabolism of plants has a positive effect on the development of fruit plants. The factors contributing to the growth of shoots in length, have a stimulating effect on apical dominance, resulting in the establishment and differentiation of generative buds are delayed and, on the contrary, the timely completion of the growth of vegetative shoots and improved metabolism increase the formation of buds to the crop.

Metal complexones with EDDNA and EDDOP, inhibiting the growth of shoots in length, have a favorable effect on the formation of fruit buds, regulating the correlation between vegetative and generative development of plants (Table 6).

The results of the four-year vegetation experiment show that complexions of metals of hydroxypropionic acid, as well as complex of metals of derivatives of succinic acids, are physiologically active substances, inhibit the growth of shoots in length, increase the budding of fruit buds, increase the content of green pigments in leaves. x,

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have a beneficial effect on plant physiological processes. The use of complex EDDOP causes an earlier establishment of the apical bud on the vegetative shoots, which leads to a change in the antagonizing centers; there is a redistribution of assimilators in the direction of their use for crop formation, deposition in the stock, timely lignification of the shoots, which is important for better transfer of winter conditions.

15Thus, complexed EDTSOP

bivalent metals are physiologically active compounds that have a significant effect on the growth and development of blonii trees. In 0 fruit, these compounds suppress apical dominance, inhibit the growth of shoots in length, and stimulate the budding and differentiation of fruit buds. Such directional impact

5 of these substances should be considered for their practical use as retardants. They can be used to regulate the growth and development of plants under irrigated gardening;

0 limit the crown habit, slow the growth rate of vegetative shoots, increase metabolism, which in general has a favorable effect on the manifestation of the potential productivity of the variety. The use of complex EDTSOP, as well as EDDEC, allows to increase the cost-effectiveness of agricultural methods (to reduce the cost of manual labor for processing, additional

Q mineral nutrition, etc.), increase crop yields and plant resistance to winter adverse factors.

Claims (1)

Invention Formula The use of metal complexonates with ethylenediamine-N, N -bis (A-hydroxy-O-oxipropionic) acid as v, a plant growth and development regulator. Growth and development of Idared Blonii trees treated with complexed metals of various concentrations Note: td at - 18 (2.1-2.88-3.92). Table The effect of different ratios of a 0.15% aqueous solution of EDDNAC and EDDOP complexates with Zn and Md on the growth and development of blonii trees. Veget. experience. 1985 Note: ta at I8 (2.10-2.88-3.92). Table 1 Growth of Idared variety Blony trees treated with O, 15% aqueous solution of EDSEC and EDDOP commexate with MD and Zn (1: 1 ob.ch.) 1987 Kontrol18,9410,672,15 + 0,3028,91 + 0,42 (without processing) EDNA (II) 14,17 + 0,541,69 + 0,2531,33 ± 0,33 EDDOP20.71 + 0.271.59 + 0.1837.66 + 1.21 Table 5 The content of pigments in the leaves of blon trees treated with metal complexones (mg-100 g wet weight) Variants Chlorophyll a Chlorophyll b I Content of Kaopyt I rotinoids Control 100.13 + 0.862.09 + 0.87l, 50j + l, l (without processing) EDDYAK (II) 109.09 ± 0.569.01 + 0.589.92 + 2.3 EDDOP128,35 + 6,5130,28 + 2,581,72 + 4,3 Tableb The effect of metal complexonates on tab generative kidneys (pieces / der.). Variantsy1986 g.1987 g. oshtaI Control 20.3 + 1.839.3 + 1.276.4 + 0.9 (without processing) EDDYAK (II) 25.6 + 1.450.3 + 1.782.9 ± 1.1 EDDOP39.2 + 0.441.0 + 1.8117.5 + 2.7