Response of sugarcane irrigated with diluted seawater to the spraying of stimufol amino and potassium citrate

Document Type : Original Article

Authors

1 National Research Center

2 NRC

3 Sugar Crops Res. Inst. Agric. Res. Center, Giza, Egypt.

4 National Research Centre

Abstract

Salinity stress is a major constraint for sugarcane growth and productivity, particularly in areas that irrigated with saline water, low quality water or diluted seawater. A pot experiment was conducted to evaluate the growth and mineral status of early stage sugarcane plants that spread with two different plant growth promoters (Stimufol-amino or potassium citrate at rate of 2g/L and distilled water used as a control) and irrigated with diluted sea water (S1=2000, S2=4000 ppm and tap water (TW) as a control). Sugarcane plants that irrigated with saline water affected negatively compared to irrigated plants with tap water. Stimufol-amino and potassium citrate have been shown to improve sugarcane growth parameters compared to control. The highest values of fresh weight (FW) of stem, root, whole plant and the dry weight (DW) of roots resulted from potassium citrate treated plants. The differences between Stimufol-amino or potassium citrate were not substantial enough to be statistically significant in all studied parameters except for the fresh weight of stem. Thus, the application of neither of them can be an effective strategy to ‎enhance sugarcane ‎growth ‎and productivity under salinity stress conditions. Although, foliar applications increased sugarcane growth particularly under salinity stress conditions, they led to discrepancy in nutrient balance where they decreased calcium % and Ca(Na+K) while they increased Na%, Na/K, and Na/Ca ratio compared with control.

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History

  • Receive Date: 28 April 2024
  • Revise Date: 06 August 2024
  • Accept Date: 15 August 2024

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