Effect Of Soil Salinity On Cotton Leaf Development And Defoliation Efficiency

It was found that the leaf plate of the Sultan cotton variety, which is grown in the conditions of weakly saline, moderately saline and non-saline soils of Andijan region,decreases as the level of soil salinity increases. UzDEF and FanDEF defoliants are applied to cotton at a rate of 5.0-6.0-7.0 l / ha compared to Liquid XMD 8.0 l / ha, in a weakly saline area - 6.0-7.0 l / ha, in moderately saline - 5.0- Defoliants were found to be more effective at 6.0 l / ha and 7.0 l / ha in the unsalted area.