Abstract— The effect of an Uchkun preparation on growth, development and yield of cotton under water deficit and wheat in saline soil conditions were studied. The field experiments showed that the pre-sowing seed treatment by Uchkun at a dose of 1.0 liter per ton of seed contributes to the stimulation of growth and development of cotton in ontogeny and increases the yield of raw cotton to 2.5 quintal per hectare (qu/ha). The harvest increases of 4.7-6.3 qu/ha in the case of treatment of wheat seeds by spraying method in the tillering phase by the same dose, and at pre-plant treatment of seeds the harvest increases of 3.8-5.2 qu/ha depending on the type of wheat. It was found that the plant origin preparation Uchkun improves the adaptation of plants to unfavorable conditions, such as drought, high temperatures, and soil salinity.
Keywords— cotton, wheat, biostimulant Uchkun, crop yields, resistance.
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