SU959653A1 - Agent for presow treatment of grain-bean crop seeds - Google Patents

Description

(54) MEANS FOR PRE-CULTIVAL TREATMENT OF SEEDS OF GRAIN BODY CULTURES

one

The invention relates to agriculture and can be used in crop production, in particular in the cultivation of leguminous crops.

A means for pre-seed treatment of seeds is known, including tetramethyl thiuram disulfide and bacteria Pseudomonas aurantiaca 387 1.

It is also known a seed treatment agent containing tetramethyluradium sulfide (TMTD) and the antibiotic biomycin 2.

However, the known means do not provide sufficient effectiveness in enhancing the quality of seeds.

The aim of the invention is to increase the yield and sowing qualities of seeds of leguminous crops.

The goal is achieved by the fact that in a known drug, trihatecin is used as an antibiotic in the following ratio of components, wt.%: Tetramethylthiuram disulfide 13-75

Trichocetin25-87

Trichocetin is obtained from the fungus Trichothecium roscum.

The proposed agent is prepared by mixing 80 / o. TMTD with 20/0 trichothecin used in agriculture.

Example 1. The processing of amounts by the proposed means containing 87% of trichothecin and 13% of TMTD was carried out two weeks before seeding by the semidry method. The benchmark was seeds treated with TMTD only. The control was the seeds without drug treatment. The treated seeds were kept in a shed. The experience was set at 4x.

10 repetitions. The germination energy, laboratory germination of seeds, and disease expression were determined on the third and seventh days after sowing. Accounting for plant damage was carried out in phases

15 shoots, bloom and ripening.

Example 2. The treatment of pea seeds was carried out as in example 1 with an agent containing 56% trichothecin and 44% TMTD.

Example 3 The treatment of pea seeds was carried out as in example 1 with an agent containing 25% trichothecin and 75% TMTD.

The effect of presowing treatment of pea seeds with trichothecin together with the TMTD fungicide on the development of diseases (variety Uladovsky 8, 1977-1979) is presented in Table. one.

The development and productivity of peas, depending on the presowing treatment. 2

In the conducted field studies, the germination rate was higher compared with the control by 11% and by 3% with the TMTD treatment. At the same time, an increase in plant stand of 7–10 pcs / m was observed; on such plants more nitrogen-fixing nodules were formed. The number of seedlings affected by the causative agents of fusarium, pale tarnish ascochyte, and perinospora (systemically) was 2-, 5-fold lower; the number of beans in patients with peronosporosis was 2.8, with gray rot 2.5 times (Table 1).

In the areas where the seeds were treated with trichothecin + TMTD, compared with the control on an infectious background, the height of the plants was 3.8 cm more, the weight of seeds from the plant was 0.90 g, and all 1000 grains to the South ( Table 2).

The effectiveness of this biological agent was not inferior to the efficiency of using the TMTD fungicide.

Thus, the treatment of pea seeds with the proposed remedy contributes to an increase in the sowing qualities of the seeds, a decrease in the infestation of plants with root and gray rot, ascochytosis and peronospora and an increase in the mass of 1000 grains.

The yield of pea grain with the treatment with the proposed TMTD agent was 4.4 centners higher than in the control.

Control (without control (without treatment 1

table 2

Claims (2)

1. USSR author's certificate for application number 2863557 / 30-15, cl. A 01 C 1/00, 1980. 2. Works of the Chisinau Agricultural Institute. Chisinau, t. 125, 1974, p. 56-61.