Effect of Biological Preparations on the Growth, Development, and Productivity of the Ranemo Potato Variety

Samarkand State University of Veterinary Medicine, Livestock and Biotechnologies, Samarkand, Uzbekistan

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Abstract

This study investigates the effects of biological preparations on the growth, development, and yield productivity of the potato variety Ranemo. The research demonstrates that the application of biological products - Biodux, Zerebra Agro, and Biogrand - during pre-planting treatment and throughout the growing season, particularly at the early budding and flowering stages, contributes to obtaining high and high-quality marketable yields. The highest efficiency was observed with the use of the biological product Biogrand. When potato tubers were treated before planting at a rate of 200 ml/t, the yield reached 32.3 t/ha. Furthermore, foliar application during the growing season at a rate of 1000-1200 ml/ha resulted in yields of 37.6-37.8 t/ha. These results exceeded the control treatment (without biological preparations) by 10.5-10.7 t/ha, and surpassed the yields obtained with other biological products by 1.4-2.3 t/ha. The application of the biologically active preparation Biogrand under early planting conditions - combined with pre-planting treatment at 200 ml/t and foliar application during the growing season at the budding and early flowering stages at 1000-1200 ml/ha - ensures optimal plant growth and development, as well as significantly enhances productivity and overall yield.