Papers by Atef El-Sagheer
Phytoparasitic nematodes, of which more than 4100 species have been identified worldwide, are obl... more Phytoparasitic nematodes, of which more than 4100 species have been identified worldwide, are obligate parasites that attack a wide range of plants; some of these species reduce global agricultural production. Phytoparasitic nematodes causes negative impact on plant health: Plant growth, germination, morphogenesis, generative growth, and reproductive growth, as well as functional and morphological changes are greatly affected. The feeding behavior and small size of phytoparasitic nematodes sometimes does not lead to the development of characteristic plant signs and symptoms where nematode problems often go completely undiagnosed. This chapter will focus on responses of plant health growing under nematodes infestation.
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Egyptian Journal of Agronematology
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Assiut University Mycological Centre (AUMC), 2015
Compounds of biological asset is considered as new efficient method that becomes widely used for ... more Compounds of biological asset is considered as new efficient method that becomes widely used for controlling plant parasitic nematodes, as aim to decrease the extent of environment degradation and the chemical effect of nematicides. So six bionematicides were evaluated in controlling the root-knot nematode Meloidogyne javanica infecting okra plants in three applications time and tow concentration under greenhouse condition. All the tested bionematicides significantly reduced in the numbers of nematodes in soil, galls formation and egg-masses than those in the check. Agrein at tow tested concentration, Bioark and Biozayd at high concentration in simultaneously infection proved to be the beast effects on nematode control. On the other hand, all tasted bionematicides significantly succeeded to improve the plant growth as compared to check. Highly significant increase in weights of both shoot and roots of plants grown in soil treated with Agrein, Bioark and Biozayd at tow different concentration in simultaneously infection as compared to another time of application in this experiment.
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Drafts by Atef El-Sagheer
د. عاطف الصغير, 2020
تشكل النيماتودا أحد أهم العوامل الضارة في الانتاج الزراعي كما ونوعا فوجودها الذي كثيرا يخفيه صغر ... more تشكل النيماتودا أحد أهم العوامل الضارة في الانتاج الزراعي كما ونوعا فوجودها الذي كثيرا يخفيه صغر حجمها عن العين المجردة لم يأخذ التقييم الاقتصادي الكافي في سجل الخسائر والأضرار التي تحدثها الآفات الزراعية المختلفة لكافة انواع المحاصيل الرئيسية إذ كثيرا ما تنسب هذه الخسائر والأضرار تجاوزا لمسببات أخرى أكثر وضوحا وأسهل اكتشافا ولهذا يهدف هذا الكتاب الى القاء مزيد من الضوء على طرق الكشف عن الآفات النيماتودية التي تصيب النباتات من خلال استخدام ابسط الطرق واقلها تكلفة اقتصادية حيث يمثل هذا الكتاب دليل الخطوات التمهيدية لنيماتولوجيا النبات .
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Papers by Atef El-Sagheer
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