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Foliar spray of phyto-extracts supplemented with silicon: an efficacious strategy to alleviate the salinity-induced deleterious effects in pea (Pisum sativum L.)

A pot culture study was conducted to assess the ameliorative effect of silicon, Melia azadirachta leaf extract, and sugar beet root extract, each applied individually or in different combinations, on salinity-induced detrimental effects in pea (Pisum sativum L.). | Turkish Journal of Botany http://journals.tubitak.gov.tr/botany/ Research Article Turk J Bot (2015) 39: 408-419 © TÜBİTAK doi:10.3906/bot-1406-84 Foliar spray of phyto-extracts supplemented with silicon: an efficacious strategy to alleviate the salinity-induced deleterious effects in pea (Pisum sativum L.) 1, 1 2 1 Muhammad Adnan SHAHID *, Rashad Mukhtar BALAL , Muhammad Aslam PERVEZ , Tahira ABBAS , 3 4 5 Muhammad Anjum AQEEL , Muhammad Mansoor JAVAID , Francisco GARCIA-SANCHEZ 1 Department of Horticulture, University College of Agriculture, University of Sargodha, Punjab, Pakistan 2 Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Punjab, Pakistan 3 Department of Entomology, University College of Agriculture, University of Sargodha, Punjab, Pakistan 4 Department of Agronomy, University College of Agriculture, University of Sargodha, Punjab, Pakistan 5 Department of Plant Nutrition, Center for Soil Science and Applied Biology of Segura, Spanish National Research Council, Espinardo, Murcia, Spain Received: 29.06.2014 Accepted: 03.11.2014 Published Online: 04.05.2015 Printed: 29.05.2015 Abstract: A pot culture study was conducted to assess the ameliorative effect of silicon, Melia azadirachta leaf extract, and sugar beet root extract, each applied individually or in different combinations, on salinity-induced detrimental effects in pea (Pisum sativum L.). Salinity markedly inhibited the growth, various gas exchange attributes, total phenol contents, membrane stability index, and productivity. On the other hand, lipid peroxidation, electrolyte leakage, H2O2 content, antioxidant activities, and leaf free proline and glycinebetaine contents were significantly enhanced by salinity. However, exogenously applied Si and phyto-extracts markedly alleviated the salinity-induced drastic effects on growth, gas exchange attributes, and productivity. Both phyto-extracts supplemented with silicon gave highly salinity mitigating effects by .