"Role of the auxin, Naphtalene Acetic Acid (NAA) in the pathogeincity o" by Mohammad Almasry and Radwan Barakat

Hebron University Research Journal-A (Natural Sciences) - (مجلة جامعة الخليل للبحوث- أ (العلوم الطبيعيه

Article Title

Role of the auxin, Naphtalene Acetic Acid (NAA) in the pathogeincity of Sclerotinia sclerotiorum, causative organism of white mold disease

Authors

Mohammad Almasry, Hebron UniversityFollow
Radwan Barakat, Hebron UniversityFollow

Abstract

The effect of Naphthalene Acetic Acid (NAA) on white mold disease was investigated by measuring the mycelium growth rate, and sclerotia weight and number formed by the disease. For this, causative organism Sclerotinia sclerotiorum was grown on Potato Dextrose Agar (PDA) amended with different concentrations of NAA. This effect was also investigated on white mold lesion growth rate on bean and cucumber detached leaves, and the development of disease severity on bean and cucumber plants. Results showed that NAA has an inhibition effect on the fungus in vitro and it has reduced the weight and the number of sclerotia formation. Consequently, at 200mg/ml, the mean of mycelium growth rate of three isolate was reduced to 0.4cm2/day(=2.9% of mycelium growth rate of control). NAA significantly (P

Recommended Citation

Almasry, Mohammad and Barakat, Radwan (1999) "Role of the auxin, Naphtalene Acetic Acid (NAA) in the pathogeincity of Sclerotinia sclerotiorum, causative organism of white mold disease," Hebron University Research Journal-A (Natural Sciences) - (مجلة جامعة الخليل للبحوث- أ (العلوم الطبيعيه: Vol. 1: Iss. 2, Article 1.
Available at: https://digitalcommons.aaru.edu.jo/hujr_a/vol1/iss2/1

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