Enhancing the Salt Tolerance Potential of Watermelon (<i>Citrullus lanatus</i>) by Exogenous Application of Salicylic Acid

• 作者: C. M. Ayyub Imran Khan Karim Yar Abbasi M. Muzammil Jahangir Muhammad Rashid Shaheen Muhammad Zain Mujahid Ali Rashad Waseem Khan Qadri Shagufta Kamal
• 来源期刊: 美国植物学期刊(英文)
• 学科: 医学
• 关键词: CITRULLUS lanatus Salicylic Acid Salinity STRESS NaCl ABIOTIC STRESS
• 年，卷（期）: 2015,（19）
• 页码范围: 3267-3271
• 页数: 5页
• 分类号: R73

摘要

Salicylic acid (SA) is a vital plant growth regulator providing promising role in plant development and adopts defense mechanism to abiotic stresses. Salinity is the most limiting abiotic factor for plant development and growth changes in watermelon by producing reactive oxygen species and ultimately oxidative stress. The present study was aimed to investigate the mechanism involved in salt stress alleviation in watermelon (Citrullus lanatus Thanb. Mavs.) through the foliar application of salicylic acid. Watermelon cv. Charleston Gray was grown under moderate saline regime of 3 ds·m-1 NaCl and sprayed with salicylic acid with four level (0.5, 1.0, 2.5 and 5.0 mmol/L) compared along with control. SA @ 5.0 mmol/L was found to be very effective in mitigation of salt stress. SA was found to be very effective in alleviation of salinity stress by produced antioxidants and acted as osmo-regulator.