Agrawal, A. A., Janssen, A., Bruin, J., Posthumus, M.A., Sabelis, W. M. 2002. An ecological cost of plant defense: attractiveness of bitter cucumber plants to natural enemies of herbivores. Ecology Letters 5: 377-385. The authors examine this tritrophic system from the bottom-up perspective by comparing the direct plant defense of producing the bitter compound, cucurbitacin, which repels the he...

Strain XN-1 isolated from the cucumber phyllosphere was tested for potential application as an antagonistic actinomycete against Corynespora cassiicola (Berk.& Curt.)Wei. The fungistatic activity of this strain was determined by inoculation of C. cassiicola on PDA plates, spore germination inhibition in culture filtrate and control tests on cucumber leaves. The spore germination and hyphal grow...

in order to study the role of phytophthora species associated with greenhouse cucumber root and crown rot, diseased sampled were collected in southern kohgiluyeh and boyerahmad province. pieces of infected root and crown of cucumber were washed with tap water blotted dry and plated on cma supplemented with delvocid (10 ppm pimarcin), ampicillin (250 ppm), rifampicin (10 ppm) and pcnb (150 ppm)....

Low-pH and aluminum (Al) stresses are the major constraints that limit crop yield in acidic soils. Grafting vegetable elite cultivars onto appropriate rootstocks may represent an effective tool to improve crop tolerance to acidity and Al toxicity. Two greenhouse hydroponic experiments were performed to evaluate growth, yield, biomass production, chlorophyll index, electrolyte leakage, mineral c...