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Home > Archives > Volume 20, No 8 (2022) > Article

DOI: 10.14704/nq.2022.20.8.NQ44575

EFFECT OF NANO- SILICON ON GROWTH ,FRUITS YIELD AND ANTIOXIDANTCAPACITY OF TOMATO PLANTS UNDER SALT STRESS

Amin Hussein Jabal, Mohammed A. Abdulkareem

Abstract

Salinity is the major problem for agriculture in arid and semi-arid regions , as it negatively affected plants growth and yield. The use of silicon has been observed to mitigate salt stress effects by increasing the tolerance of plant. Therefore , the aim of this study is to evaluate the application of Nanosilicon and K2SiO3 on dry weight ,fruits yield and antioxidant capacity (proline ,phenols and lycopene contents) of tomato plant irrigated with different levels (1.65 , 3 ,6 and 9 dSm-1 ) of water salinity .Nanosilicon was applied either to soil or spraying on plant canopy . Results indicated that there is a remarkable variations in dry weight ,fruits yield ,proline ,phenols and lycopene contents among irrigation with different levels of water salinity ,which the dry weight decrease with increased salinity levels , and the rest parameters increased up to 6dSm-1 then decreased at 9dSm-1 .The application of silicon had positive effects on the plants that were subjected to salt stress, alleviated the negative effects of oxidative stress caused by salt.The application of Nano-silicon is more effective than K2SiO3 in increasing response of tomato to salt stress .Among other treatments , addition of 300kg Si ha-1 Nano - silicon spraying on plant had the more positive effect on mitigation salt stress enhancing fruits yield of 65.58Mgha-1

Keywords

antioxidants ,Nano-silicon ,salinity , tomato ,stress

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