PLANT WATER RELATIONS AND DROUGHT ADAPTATIONS OF SCHIMA WALLICHII AT PHULCHOWKI HILL, NEPAL

Evaluation of the free-radical scavenging and antioxidant activities of Chilauni, Schima wallichii Korth in vitro

Aim Free radicals are an outcome of various metabolic activities and their excess production leads to many diseases. Therefore, it is necessary to neutralize excess free radicals. Materials & methods Free-radical scavenging activity of various extracts of Schima wallichii was evaluated using standard protocols. Results Chloroform, ethanol and aqueous extracts of S. wallichii scavenged DPPH,...

Distribution and Identification of Endophytic Streptomyces Species from Schima wallichii as Potential Biocontrol Agents against Fungal Plant Pathogens.

The prospective of endophytic microorganisms allied with medicinal plants is disproportionally large compared to those in other biomes. The use of antagonistic microorganisms to control devastating fungal pathogens is an attractive and eco-friendly substitute for chemical pesticides. Many species of actinomycetes, especially the genus Streptomyces, are well known as biocontrol agents. We invest...

Water Relations: Biochemical Adaptations to Drying

Silicon Application Increases Drought Tolerance of Kentucky Bluegrass by Improving Plant Water Relations and Morphophysiological Functions

Drought stress encumbers the growth of turfgrass principally by disrupting the plant-water relations and physiological functions. The present study was carried out to appraise the role of silicon (Si) in improving the drought tolerance in Kentucky bluegrass (Poa pratensis L.). Drought stress and four levels (0, 200, 400, and 800 mg L(-1)) of Si (Na2SiO3·9H2O) were imposed after 2 months old pla...

Drought resistance of Ailanthus altissima: root hydraulics and water relations.

Drought resistance of Ailanthus altissima (Mill.) Swingle is a major factor underlying the impressively wide expansion of this species in Europe and North America. We studied the specific mechanism used by A. altissima to withstand drought by subjecting potted seedlings to four irrigation regimes. At the end of the 13-week treatment period, soil water potential was -0.05 MPa for well-watered co...