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Asian Journal of Plant Sciences
Year: 2003  |  Volume: 2  |  Issue: 8  |  Page No.: 602 - 604

Effect of Potash Application on Seed Cotton Yield and Yield Components of Selected Cotton Varieties-I

M. Ehsan Akhtar, Aneela Sardar, M. Ashraf, Maqbool Akhtar and M. Zameer Khan    

Abstract: A pot experiment was conduced in a glasshouse at the National Agricultural Research Centre (NARC), Islamabad to study the effect of application potash on boll weight, boll size and seed cotton yield in selected cotton varieties, namely CIM-443, CIM-109 and CIM-446 during summer 1999. Potash as MOP was applied @ 0, 100 and 200 kg K2O ha-1 along with basal application of N and P @ 150 and 75 kg P2O5 ha-1. The results showed that boll weight and size increased significantly with increasing K2O levels of application and they were maximum at 200 kg K2O ha-1. However, no significant difference was observed in the boll size of different varieties. Seed cotton yield also increased significantly in all the varieties with increasing K2O. The magnitude of response was variable and maximum response was observed in case of CIM-446 followed by CIM-109 and CIM-443.

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