Seyedeh mahsa Hosseini, Mohsen Kafi, Masoud Arghavani
Department of Horticulture (Ornamental Plants), Faculty of Agriculture, Science and Research Branch, Islamic Azad University, Iran
Department of Horticultural Sciences, University of Tehran, Iran
Department of Horticultural Sciences, University of Zanjan, Iran
Key words: Field capacity, chlorophyll, electrolyte leakage, antioxidant enzyme activity, proline accumulation.
Salicylic acid is involved in plant responses to abiotic stress such as drought, cold, heavy metal poisoning, heat and osmotic stress. This study carried out to investigate the effect of salicylic acid on physiological characteristics of Lolium grass (Lolium perenne cv. “Numan”) under drought stress. A factorial experiment in a completely randomized design with four replications was performed. The treatments consisted of three salicylic acid levels (0.0, 0.75, and 1.5 mm) and drought stress consisted three levels (50, 75, and 100 percent of field capacity). Salicylic acid Foliar application at 0.75 and 1.5 mm levels increased the content of chlorophyll a, b and reduced electrolyte leakage, proline accumulation and antioxidant enzyme activity, which suggests that salicylic acid, to reduce the negative impacts of drought stress.
Get the original articles in Source: Volume 7, Number 1, July 2015 – IJAAR
Published By: International Network for Natural Sciences