Study of interaction between plant nutrition and cucumber Fusarium wilt disease caused by Fusarium oxysporum f.sp. cucumerinum
Message:
Abstract:
Cucumber wilt disease caused by Fusarium oxysporum f.sp. cucumerinum is one of the most important diseases of cucumber. Disease severity can be decreased by plant nutrition management, especially nitrogen level. In this study, the effects of nitrogen sources such as KNO3 and NH4NO3 on the growth of fungus (Fusarium oxysporum f. sp. cucumerinum) on PDA medium and interaction between plant nutrition (N) and cucumber Fusarium wilt disease on some cultivar of cucumber in greenhouse hydroponic culture were investigated. The effects of nitrogen sources such as KNO3 and NH4NO3 were investigated on growth area of F.oxysporum f. sp. cucumerinum on PDA medium by a completely randomized design with 4 replications. Variance analysis of growth area of the fungus showed significant effect on the different factors used in this experiment. The highest area growth of fungus was obtained at 0.1 g/l for KNO3. Ammonium nitrate (NH4NO3) significantly reduced the mycelial growth compared to the control treatment. Effects of different N levels were investigated on two greenhouse cucumber cultivars (exterem and soltan) at the presence of fungus (F. oxysporum f. sp. cucumerinum). A completely randomized design with 4 replications was used for this experiment. The results showed that increasing of nitrogen level (20 meq/l NO3-) compared to the control treatment (distilled water + fungus) decrease the disease severity. The results showed that cucumber nutrition with nitrogen affects the F. oxysporum f. sp. cucumerinum. Also the importance of plant nutrituin management for decrease of disease severity was shown.
Language:
Persian
Published:
Journal of Novel Researches on Plant Protection, Volume:6 Issue: 3, 2015
Page:
297
magiran.com/p1451059  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 990,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required

Personal subscription
Subscribe magiran.com for 50 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!