SHOOT AND BLOSSOM SUSCEPTIBILITY TO FIREBLIGHT OF APPLE CULTIVARS

effect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars

این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...

An Assessment of the Durability and Susceptibility of Scab Resistance in Apple Cultivars

Durable resistance to scab (Venturia inaequalis) of newly introduced cultivars is needed to achieve a considerable reduction of pesticide use. However, the assessment in the field on the level and durability of scab resistance is time and space consuming. A proper and fast indoor test should be a convenient tool to discard cultivars with a limited level of resistance at an early stage. As a res...

Suppression of Fireblight in Apple Shoots by Prohexadione-calcium following Experimental and Natural Inoculation

Received for publication 20 July 1998. Accepted for publication 1 Aug. 1998. Mention of a trade name, proprietary product, or specific equipment does not constitute a guarantee or warranty and does not imply approval to the exclusion of other products that may be suitable. We gratefully acknowledge the technical assistance of Allen Cochran II, William Royston, Jr., and Scott Kilmer. This projec...

Susceptibility of Cultivars to Biotic Stresses

Susceptibility of Viburnum Species and Cultivars to Phytophthora ramorum1

Phytophthora ramorum causes ramorum blight on Viburnum species, which are commonly grown as ornamentals. This study evaluated 24 different species or cultivars for susceptibility to P. ramorum. Whole plants were inoculated with an NA1 isolate of P. ramorum and placed in dew chambers at 20C (68F). After 5 days, the percentage of necrotic leaves for each plant and the percentage of necrotic area ...