Articles
INTERACTIONS BETWEEN EXOGENOUS SILICON AND NACL-SALINITY IN A SOILLESS CULTURE OF TOMATO (LYCOPERSICON ESCULENTUM MILL.)
Article number
1062_9
Pages
77 – 82
Language
English
Abstract
The influence of exogenous silicon on seed germination and early seedling growth of salt-stressed tomato (Lycopersicon esculentum Mill.) was studied.
The results showed that effect of silicon on seed germination was not significant.
However, silicon partially offset the negative impacts and increased tolerance of tomato seedlings to NaCl stress by enhancing chlorophyll content, stem sap concentration, root activity, SOD and CAT activities.
In contrast, Si addition significantly reduced free proline levels and MDA concentrations in stressed tomato leaves.
Enhanced activities of chlorophyll content stem sap concentration, root activity, SOD and CAT by Si addition may protect the plant tissues from salt induced oxidative damage, thus mitigating salt toxicity and improving tomato growth.
The results showed that effect of silicon on seed germination was not significant.
However, silicon partially offset the negative impacts and increased tolerance of tomato seedlings to NaCl stress by enhancing chlorophyll content, stem sap concentration, root activity, SOD and CAT activities.
In contrast, Si addition significantly reduced free proline levels and MDA concentrations in stressed tomato leaves.
Enhanced activities of chlorophyll content stem sap concentration, root activity, SOD and CAT by Si addition may protect the plant tissues from salt induced oxidative damage, thus mitigating salt toxicity and improving tomato growth.
Authors
Qin Ling, Qi Yanling, Cai Aijun, Zhang Zhiwen, Du Jinyou, Wang Na
Keywords
silicon, tomato (Lycopersicon esculentum Mill.), salt stress, seed germination
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