EFFECT OF BIO-STIMULANTS (HUMIC ACID, SALICYLIC ACID AND CHITOSAN) ON ROSE PERIWINKLE (CATHARANTHUS ROSEUS L.)
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چکیده
منابع مشابه
Improving Effects of Mild Cold Stress and Salicylic acid on Growth and Physiology of Periwinkle (Catharanthus roseus Don.)
To study effects of salicylic acid (SA) treatments (0, 0.5, 1 and 2 mM) in two forms of seed priming (for 24 h) and spraying on seedling at 4-6 leaf stage an experiment was conducted on periwinkle (Catharanthus roseus Don.) with and without exposure to a mild cold stress of 8 °C (for 32 h). Seeds were sown in trays containing peat-based substrate (with 20% sandy loam field soil). Transplants of...
متن کاملMorphological and Physiological Traits of Catharanthus roseus L. at Different Irrigation Intervals as Affected by Salicylic Acid Application
The effects of varying irrigation intervals (I) and foliar application of salicylic acid (M) on morphological and physiological traits of Catharanthus roseus L. were studied in a factorial experiment based on a randomized complete block design with three replications. The experimental treatments consisted of four irrigation intervals [2 days (I1), 4 days (I2), 6 d...
متن کاملCryopreservation of Alkaloid-Producing Cell Cultures of Periwinkle (Catharanthus roseus).
A procedure for cryogenic storage of alkaloid producing cell lines of periwinkle, Catharanthus roseus (L.) G. Don., has been developed. The procedure differs from established cryopreservation protocols in several aspects. Specifically, 4-day-old suspension subcultures of three cell lines were precultured in nutrient media supplemented with 1 molar sorbitol for 6 to 20 hours. The cells were then...
متن کاملSalicylic acid alters antioxidant and phenolics metabolism in Catharanthus roseus grown under salinity stress.
BACKGROUND Salicylic acid (SA) acts as a potential non-enzymatic antioxidant and a plant growth regulator, which plays a major role in regulating various plant physiological mechanisms. The effects of salicylic acid (SA; 0.05 mM) on physiological parameters, antioxidative capacity and phenolic metabolism, lignin, alkaloid accumulation in salt stressed Catharanthus roseus were investigated. MA...
متن کاملPhysiological Response of Periwinkle Plants (Catharanthus roseus L.) to Tryptophan and Putrescine
A pot experiment was conducted in the screen of the National Research Centre during two successive seasons to study the response of periwinkle plants to foliar spray with tryptophan or putrescine at the concentrations 10 M, 10 M or 10 M. The obtained data indicated that exogenous application of tryptophan or putrescine on periwinkle transplants considerably increased plant growth at successive ...
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ژورنال
عنوان ژورنال: Applied Ecology and Environmental Research
سال: 2021
ISSN: 1589-1623,1785-0037
DOI: 10.15666/aeer/1902_971980