Abstract Alternative strategies in plant protection are required due to political and environmental conditions. Basic substances can potentially benefit for modern conventional organic horticulture. In the case of ornamentals, little is known about effect basic within canopy reduce foliar diseases. Podosphaera pannosa one most severe diseases production cut roses. this study, different cultivar...

the postharvest vase life of cut roses was studied to determine the effects of various physiological factors that influence the vase life of cut flower. cut roses were obtained from commercial area of siliguri. to assess the effect of preservatives on the postharvest life of rose, cut flowers were treated with following preservative solutions: fixed amount of citric acid (ca) (300 mg/ml) and 8-...