Ameliorate growth and leaf mineral content of olive seedlings irrigated with saline water by using salicylic acid

Authors

  • Laila F. Hagagg Pomology Dept., National Research Center, Dokki, Cairo, Egypt.
  • M.F.M. Shahin Pomology Dept., National Research Center, Dokki, Cairo, Egypt.
  • A.M. Hassan Pomology Dept., National Research Center, Dokki, Cairo, Egypt.
  • A.E.M. Mansour Pomology Dept., National Research Center, Dokki, Cairo, Egypt.
  • Eman S. El-Hady Pomology Dept., National Research Center, Dokki, Cairo, Egypt.

Keywords:

saline water, salicylic acid, antioxidants, soil application, seedlings, growth performance

Abstract

The aim of the present investigation was to determine the effect of applying salicylic acid on growth and leaf nutrient content of Picual olive seedlings exposed to saline stress grown under shade house condition. Seedlings subjected during two growth seasons (2019-2020) to salicylic acid (SA) which applied as soil application at three concentrations (0, 200, and 400 ppm) on olive seedlings cv. Picual
grown under three levels of salinity (tap water, 2000, 4000 ppm). At the end of each growth season different vegetative growth parameters (plant height increment%, leaves no., shoots no., leaf dry matter % and leaves moist %) were determined. Moreover, leaf nutrient status were been estimated. Obtained results indicated that, vegetative growth parameters of olive seedlings cv. Picual show a negative response when irrigated with saline water up to 2000 ppm and increasing salinity in irrigation water from 2000 to 4000 ppm tended to significantly decrease vegetative growth parameters. Where, exogenous application of salicylic acid with 200 ppm (soil application) on olive seedlings improved most vegetative studied parameters. Also, current study concluded that, exogenous application of salicylic acid on saline stressed Picual olive seedling increased nitrogen, phosphor and potassium content in leaves than untreated once.

Published

20.01.2022