اثرهاي پايه هاي مختلف كدو بر رشد و عملكرد خيار گلخانه اي رقم سلطان

THE EFFECTS OF DIFFERENT CUCURBIT ROOTSTOCKS ON GROWTH AND YIELD OF GREENHOUSE CUCUMBER

The effects of different cucurbit rootstocks, pumpkin (Cucurbita pepo L.), Cucurbita moschata L. and fig leaf gourd (Cucurbita ficifolia) were studied on cucumber (Cucumis sativus L.) scion cv. Sultan in 2002. Grafting method was `hole insertion graftingʹ. This experiment consisted of four treatments (three rootstocks and a control) with three replications using randomized complete block design (RCBD). Some vegetative and quantitative characteristics such as main stem length, number of leaves, vine yield, fresh and dry weights of air organs, fresh and dry weights of root and percentage of fruit dry matter were measured. The results showed significant differences in vegetative characteristics between grafted and ungrafted plants (P<0.01), except for fruit dry weight among the rootstocks and Cucurbita pepo had the greatest effect. Productivity was affected by rootstocks, Cucurbita pepo showed the highest yield (4.5 kg vine^-1), 33% yield increasing, but Crookneck and control had the lowest yield (3 kg vine^-1) compareed to 4 kg vine-ʹ in fig leaf gourd rootstock (12% increase in yield).