Published in Scientific Papers. Series B, Horticulture, Vol. LXVII, Issue 1
Written by Gabriel-Alin IOSOB, Tina Oana CRISTEA, Dan Ioan AVASILOAIEI, Alexandru BUTE, Sebastian Petru MUSCALU
Our study was accomplished in lab conditions at Vegetables Research and Development Station Bacău, aiming to determine the impact of foliar treatment with salicylic acid (SA) over the ability of plants to overcame the water stress. The pot experiment used a randomized block design with four replications and ten plants per variant. Leaves from well-developed plants (30 days old seedlings) were sprayed with 1 mM SA solution until both sides were completely moistened. After treatment application, water regime followed as one set was used as a well-water treatment (WW) and the other set as a drought stress treatment (DS) where the plants were restricted watering for the next 10 days. Results showed that tomato plants treated with salicylic acid and exposed to water stress become more tolerant to drought stress induced oxidative damage than those not treated, the values were comparable to those recorded in WW plants. The extent of water stress injury was higher at non-treated DS plants. The results obtained showed that foliar application of SA stimulated the adaptation of plants, improving water-plant relation, allowing to alleviate the oxidative damage.
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