Journal
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
Volume 26, Issue 6, Pages 1134-1139Publisher
ELSEVIER
DOI: 10.1016/j.sjbs.2018.07.010
Keywords
Cocopeat; Rockwool; Perlite; Cucurbita moschata L. landraces; Dry and fresh weight; Leaf ion concentration
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This study aimed to determine the effects of different rootstocks and soilless media on the plant growth and yield of cucumber and on the leaf ion (Na+, Ca++, K+ and Cl-) concentrations. Four commercial root-stocks (TZ148 F-1, RS841 F-1, Nun9075 F-1 and Avar F-1) and two local landraces (Local-1 and Local-3 belonging to Cucurbita moschata L.) were used as rootstock and grafted and non grafted plants were tested in three different salinity conditions (2.5 dS m(-1), 5.0 dS m(-1) and 7.5 dS m(-1)) on three different soilless media (cocopeat, perlite and rockwool) in spring period under greenhouse conditions. Salinity found to reduce root and shoot dry weight, and yield of plants in all growing media. TZ148, Nun9075 and Local-3 are found to improve tolerance of cucumber plants to saline conditions (5.0 and 7.5 dS m(-1)) when used as rootstocks. Root and shoot dry weight, yield, Ca++ in leaves and K+/Na+ ratio in leaves were significantly decreased, but Na+ and Cl- concentration in leaves were increased under salt stress. Rootstock potential of Local-3 is also found to be quite good for cucumber under saline conditions. (C) 2018 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University.
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