Salinity is an obstacle to citriculture worldwide, and is a concern in arid, semiarid, and coastal regions. In the current study, we irrigated one-year-old ‘Valencia’ trees budded onto Kuharske rootstock with 60 mM sodium chloride (NaCl) solution for ten weeks. Subsequently, these trees were sprayed with 50, 75, and 100 mM SA or MeJA to determine whether these phytohormones could alleviate the detrimental effects of salinity.
Control trees were not sprayed, including a positive control with saline irrigation and a negative control without saline irrigation. A reduction in plant growth and chlorophyll content following the NaCl treatment was recorded. Subsequent SA and MeJA treatments promoted tree growth and enhanced chlorophyll content in these trees.
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Source:
Lamiaa M. Mahmoud, Christopher I. Vincent, Jude W. Grosser & Manjul Dut
Indian Society for Plant Physiology 2021
