Salt Tolerance of Muskmelons as Affected by Various Salinities in Nutrient Solution Culture
Year: 1983
Type: article
Abstract: Muskmelons (Cucumis melo L.) were grown in nutrient solution to determine the salt tolerance as affected by salinization of sea water (-2.20 and -4.20 bars), NaCl and Na2SO4 (-2.20, -3.20 and -4.20 bars), and MgCl2 and MgSO4 (-1.20, -1.70 and -2.20 bars) compared with a control of -0.70 bars of base nutrient solution. Fruit fresh weight and whole plant dry weight were greatest in the control and tended to decrease in each salinity with decreasing osmotic potential of treatment solutions. At -2.20 bars fruit fresh weight was 89.9, 94.5, 81.3, 67.8 and 13.9% compared with the control in the sea water, NaCl, Na2SO4, MgCl2 and MgSO4 series, respectively. Growth was much greater in the sodium-than magnesium-salinity and, to a less extent, in the chloride-than in the sulfate-salinity. Fruit taste varied with the salt added to the base nutrient solution. Visible salt injury was proportional to the growth reduction. No plants died at -2.20 bars before harvest in the sodium-salinity. Most plants died in the MgCl2 series and all plants died in the MgSO4 series at -2.20 bars before harvest. Addition of single salts or sea water to the base nutrient solution tended to increase the content of the respective added ions in leaves and fruit. Ca and K in leaves were less at -2.20 bars in all salinities than in the control.
DOI: 10.2503/jjshs.52.167
Authors: Akira NUKAYA, Masao MASUI, Akira ISHIDA
Institution: Shizuoka University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W2028972591