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Title
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THE EFFECTS OF COMMON AND NANO-ZINC FOLIAR APPLICATION
ON THE ALLEVIATION OF SALINITY STRESS IN Rosmarinus
officinalis L.Rosmarinus officinalis, antioxidant enzymes, essential oil, total phenolics content
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Abstract
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Foliar application of micronutrients (both in common and nano-forms) to meet the nutritional demands of
plants and even to overcome the stressful environments has gained great attention of agricultural systems.
In our experiments, we tried to use the foliar nano-zinc and common zinc sources under salinity conditions
and study their effects on some morpho-physiological traits of rosemary (Rosmarinus officinalis) as factorial
experiment based on RCBD design. ANOVA results revealed the interaction effects of salinity and zinc
foliar application on elemental content (K+, Na+ and Zn2+), as well as essential oil yield of the plants. Carotenoids
were influenced by the salinity levels. Soluble sugars content, flavonoids, H2O2 and MDA contents
were influenced by individual levels of salinity and zinc foliar applications. Eventually, nano-zinc foliar
spray was able to overcome the mild salinity effects on the plant growth and physiological parameters and
it could be administered to the production systems and pioneer plant producers.
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