This article provides information on the species composition of the powdery mildew pathogen found in medicinal plants cassis and raspberry, as well as its distribution, development and damage to farms in the Tashkent province. The development of raspberry powdery mildew in the farms studied and the relatively low yield loss may depend on the raspberry navigation planted on the farm, the agronomic practices carried out, and the disease control measures taken. The prevalence of powdery mildew in cassis was 25.6-49.8%, development was 14.2-27.1%, yield loss was 12.0-20.0%, and the prevalence of powdery mildew in raspberry was 12.5-31.4%, development was 5.3-25.2%, and yield loss was 10.9-22.7%.
This article provides information on the spread, development and damage of fusarium disease, which occurs in cabbage vegetable crops (white cabbage, cauliflower, broccoli, red cabbage, savoy cabbage, Chinese cabbage) and the use of biological preparations against this disease. Healthy and vigorous seedlings were obtained when fusarium disease was treated with a titrated suspension Orgamica F of 1∙108 CFU (colony forming unit)/ml, and the number of diseased seedlings was 0.6–1.0%. It was noted that 0.9-1.3% of seedlings from seeds treated with a titrated suspension of the preparation 1∙104 CFU/ml were infected with fusarium disease. Also, in the experiment, a option that showed high biological efficacy against white fusarium disease: Orgamika F biopreparation 3 times, ie with a suspension of 1∙108 CFU/ml titer per seed before sowing, 2% suspension of the biopreparation (2∙106 CFU/ml titration suspension). It is recommended to apply the biopreparation to the seedling root before planting and 15 days after planting in the field with a suspension of 0.25% concentration (2.5∙104 CFU/ml titration) under production conditions.
Tomato is the most common and widespread vegetable among other vegetable crops in Uzbekistan. It ranks the first place by its planting area and gross yield. Tomato, like other farming crops, is affected by a number of infectious diseases. Among them, grey mould causes considerable damage to the crops. This article contains the data on testing fungicides with active ingredients Difenoconazole and Cyprodinil against grey mould disease of tomato in greenhouse condition. In fungicides sprayed variants, the inhibitory effect of fungicides on the development of diseases was considerable, that is, disease development index constituted 3.4-6.4%. When 0.08% concentration of fungicide Difen Super, 55% WP was applied, then development of disease was 3.9% at the first spray; and 4.5% at the second spray; 5% at the third and 5.8% at the forth spray. Among the fungicides, 0.05% concentration of Skor, 250 g/l EC fungicide applied variant performed much less development of grey mould disease compared to other variants, disease development index indicated 3.4-4.7%. According to experiment results, it has been recommended to conduct treatment with Difen Super, 55% WP (0.08%) and Skor, 250 g/l EC (0.05%) fungicides against tomato’s grey mould disease three times with 10 days interval.
Strawberries (Fragaria x ananassa Duch.) are exposed to the world and is 70% of the world's breeding fruits in the world. The cultivation of strawberries is growing every year, now the yield of this crop has exceeded 4 million tons per year. The article was tested by various concentration of sodium hyphosts for steriles in the article. Nutrients containing nitrogen, phosphorus, potassium, calcium, sulfur, magnesium, iron and trace elements: boron, zinc, copper, cobalt, manganese, iodine, molybdenum, as well as vitamins, carbohydrates, carbohydrates, and phytohormones are used for growing plants. Casein hydrolyzate and some amino acids are added to some food media. In addition, EDTA (ethylenediamine-tetraacetic acid) or its sodium salt is added to the nutritional medium to meet the iron needs of the cells. In the sterulation of strawberries plant, the affected plants were 16.3%, and the survival rate was 83.7%, when carried out in the solution of the surface in sterulation of the surface. In micro-clonal breeding, the development of plants in the options of BAP +2 and NAA + 1 in the options added to 89.7% were 89.7%.
This paper observed that soybean crops were contaminated with a number of specialized and omnivorous pests in the field, during the storage of grain in warehouses and private households. The study identified 18 species of pests belonging to different families. The main pest of the soybean crop is Dalucho 70% (at a consumption rate of 5.0 l/t), Cruiser Extra 362 from insecticide seed pesticides against autumn night worms. (When planted with 3.0 l/t, the biological efficiency reaches 85-90% and protects the soybean during the entire growing season and prevents pest damage. The main pest of soybeans in field studies against cotton bollworm is the poaching parasite in middle and older cotton According to the results of experiments on the application of nightshade worms in different proportions, the efficiency was 29.8% on the 3rd day, 44.5% on the 7th day and 75.0% on the 10th day when the ratio of free-range and host insects was 1:5. When the parasite was applied at a ratio of 1:10, the biological efficiency was 20.7% on day 3, 42.1% on day 7 and 68.0% at 10 days. The last variant in the observations was 20.3% on day 3 when the parasite was used at a ratio of 1:15, 34.4% at 7 days and 56.1% at 10 days.
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