SU938877A1 - Method of stimulating growth of seedlings of corniferous trees - Google Patents

Description

() METHOD OF STIMULATING GROWTH OF SEEDLES OF CONIFEROUS BREEDS

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The invention relates to forestry, in particular to methods for stimulating the growth of coniferous plants and increasing their resistance to diseases.

Methods are known for stimulating the growth of plants of conifers, including the treatment of seeds, seedlings or trees with solutions of various organic and inorganic stimuli, such as thorium nitrate

G13, C2,3.

The disadvantage of these methods is that they use chemical compounds that are often necessary in other areas of national economy and they do not contribute to the protection of plants from diseases.

A method of stimulation is also known, based on the use of gibberellic acid, in which two plants are sprayed with an aqueous solution of gibberellin at a concentration of lOO mg / l in an amount of 400-500 l / ha. To better wet the needles surface, a surfactant is added to the gibberellin solutions — an on-10 wetting agent in an amount of 0.05.

The disadvantage of this method is the use of a chemical compound and low stimulation of plant growth.

The purpose of the invention is to improve the stimulation of plant growth while at the same time increasing their protection against diseases.

This goal is achieved by the fact that 5 seedlings are treated with an aqueous extract of pine or spruce needles infected with schutte and / or culture liquid of Lophodermium pinastri chev Lophodemiium mocrosporiM (Hort) Rehm phytopathogenic fungi isolated from pine and spruce needles.

Claims (3)

The treatment of the seeds is carried out preferably three times, starting with the month 3 93887 months with an interval of four weeks. The concentration of the solutions is 0.3-0-, 7% at the rate of consumption of 2.0-2.5 liters per 1 seeding area. Bioactive substances produced by these phytopathogens not only stimulate the growth of plants, but also contribute to the development of the disease. Example 1. Pine or spruce needles affected by shyutte are ground, poured with water (for 1 part of the needles take k part of water) and heated in a boiling water bath for 3 hours. The cooled extract is filtered off and diluted with water to the desired concentration of dry matter. Water Output The effect of a water extract from 117.9 + 1.3 132.0.6 Growth Diameter at the root 161.3 ± 2.5 170.2 ± i, 2 Biomass, 6 ± 1.9 Tb, 8 + 3, 5 needles 127.8 + 2.1, 2 + 1.9 Growth Diameter at the root 115.3 ± 1.5 118.9 ± 3.2 Biomass 179.8 + 1.8 1TO, 3 ± 1.8 needles 119 , 8 + 1.7 131.3 + 1.9 Growth Biomass 129.7 ± 3.1 130 ,, needles of affected needles for growth of seedlings,% of control 4 | GO of spruce needles extract amounted to I3-15, and pine - 16-18. The treatment of the areas of the beds was carried out 3 times, starting with the month, at intervals of weeks. The volume of the preparation (disposable) is 2, 0-2.5 l per 1 m of seeding area. The concentration of the preparation is 0.3% of dry matter. Control areas are simultaneously watered with the same amount of river water. The seedlings dig up to a depth of 25–30 cm in the plants and in 50 plants of each replicate, the height at the root collar, e, and the biomass of needles are measured. All data processed statistically. Spruce tree 2 years 127.1 ± 1.8 119.9 ± 0.8 135.7 ± 1.8 130.2 + 0.9 173.7 ± 2, 8 + 2.7187.5 + 1.6172, 3 + 1.8 165.3 + 2,7159.1 + 3,317.0 + 1.8l69.6 + i4.2. SosIa 2 years 1 “7.7 + 1.6128.9 ± 3.1168.8 + 2.4152, ij + 1.6 118.8 + 2.7130.2 + 2.1Y7.8 + 1,, 3 + 2.3 200.7 ± 2.1189.7 +, 6227.3 + 3.6 nt, 9 + 1.6 Pine 1 year 127,, 312t, 5 ± 3.113.2 + 1.8130.2 + 1.1,128 , 8 + 0.713.8 + 0.8136.9 + 2.7135.1 + 2, A 593 From the results of the accounting shown in the table, it can be seen that the increase in spruce seedlings ate two years old, treated with an aqueous extract of needles, , as compared to controls, it is higher by 18-20%, in pine pine seedlings of two years - by 28-29, and in pine 1 year -. The biomass of the needles increased the most in pine pine seedlings of two years - by 80-90 compared to control, in fir seedlings of two years by 50-60%, and in pine 1 year - by 30-35%. Example 2 Phytopathogenic fungus culture fluids are prepared by surface culture of L. pinastri and L. mocrosporum cultures in a liquid nutrient medium. Coniferous water extracts obtained at the Tikhvin forestry plant of Leningrad region were used as a medium. Cultivation time weeks. The dry matter concentration in the nutrient medium is 2-: 3%. The culture fluid of the corresponding fungal culture is separated from the biomass by filtration. The average yield of drugs,% Cultural liquid L.pinastri65-70 Cultural liquid L.mocrosponjm 70-75 from the dry matter of the nutrient medium. Before use, the tested preparations, as in Example 1, were diluted with water to a concentration of 0.3% of dry matter. The treatment of the areas was carried out three times, starting with ma, with an interval of weeks. One-time amount of drugs - 2.0-2.5 liters per 1 m of seeding area. The test areas are simultaneously watered with the same amount of water. Taking into account the condition of the seedlings is also carried out at the end of the growing season. During the treatment of the seedlings, the cultured liquid of these fungi increases the growth of seedlings or two years compared with the control and is higher than normal. pine seedlings by 22–25% for two-year-olds and by 16–18% for annuals. In addition, in the seedlings treated with the proposed preparations, the incidence of Schutte is much lower than in the controls: On pine seedlings of two years and 10-20% in seedlings or two years and pine of 1 g. Invention 1. Method of stimulation growth of coniferous seedlings, including processing, their stimulator, and those that increase the effect of stimulation and decrease incidence by using aqueous extracts of pine and / or spruce needles affected liquid mushroom Lophoder mium pinastri Chev u Lophodermium mocrosporum (Hort) Rehm excreted of pine needles and spruce: 2. The method according to claim, 1, characterized in that the processing of plants is carried out at the rate of consumption of 2.0-2.5 l of 0.3-0.7% aqueous solution of extract or filtrate culture fluid per 1 m of seeding area. Sources of information taken into account in the examination 1. The author's certificate of the USSR 71098, cl. And 01 N 59/00. 2. USSR author's certificate number 536804, cl. C 07 C 37/00. 3. USSR author's certificate number 670290, cl. And 01 N 33/08. C, Zhuravleva M.V. The effect of stimulators on the development of pine seedlings 1978, 5, ieli. Forest management c. (prototype).