نتایج جستجو برای: quince and pear trees

تعداد نتایج: 16840254  

A Elahinia , A Rouhibakhsh , M Farmahini , R Pourrahim , Sh Farzadfar ,

Background and Aims: In spite of a long tradition of fruit-tree growing in all provinces of Iran, information on pear (Pyrus communis) tree viruses is scant. In order to identify of the nature of the virus like symptoms and decline in pear trees, we carried out a survey for the occurrence of four important viruses. Materials and Methods: Leaf samples of pear showing virus like symptoms wer...

اسماعیل کامران, , بیتا علی, , مصطفی نیک نژاد کاظم پور, ,

Fire blight caused by Erwinia amylovora, is a serious disease of pome fruits in many areas in the world which causes evaluative necrosis. Indeed, E. amylovora can invade the whole tree solely by internal progression through the host tissues. In this research, symptoms of necrotic shoots and exudates production on infected pear trees in different areas of Guilan province (Astaneh Ashrafieh, Lahi...

ژورنال: علوم آب و خاک 2007
اسماعیل کامران, , بیتا علی, , مصطفی نیک نژاد کاظم پور, ,

Fire blight caused by Erwinia amylovora, is a serious disease of pome fruits in many areas in the world which causes evaluative necrosis. Indeed, E. amylovora can invade the whole tree solely by internal progression through the host tissues. In this research, symptoms of necrotic shoots and exudates production on infected pear trees in different areas of Guilan province (Astaneh Ashrafieh, Lahi...

Journal: :Europan journal of science and technology 2021

Producing yieldy and good quality production in orchards depends on the correct fertilization program. This study was carried out Adıyaman University between April 2019 September order to reveal nutritional status soil-plant relations without soil tillage fertilization. Since preparation of program leaf analysis; samples were taken revealed. Leaf April, May, June, July, August 2019, February 20...

Journal: :یافته های تحقیقاتی در گیاهان زراعی و باغی 0
رئوف کلیائی مؤسسه تحقیقات گیاه پزشکی کشور، تهران داراب حسنی

leopard moth, zeuzera pyrina l., is a xylophagous key pest in iran. pest has major hosts in orchards. walnut is the main host in orchard trees. other hosts in iran are apple, pear and quince. at present, this pest is active in the middle and eastern provinces of iran. in this study, the efficacy of a new and common method which is mass trapping of male insects by synthetic pheromones was invest...

Journal: : 2023

The research carried out to evaluate effects of quince rootstocks [Quince Province BA29 (BA29), Quince A(QA), C (MC)], pear cultivars, and years on fruit quality yield efficiency in the 2020-2021. highest weight was obtained from (196.02 g), lowest MC (158.09 g). In cultivars ‘Abate Fetel’ (210.85 ‘Santa Maria’ (156.73 number fruits (17.06 pieces tree-1), per tree (3.13 kg hectare (5982.8 ha-1)...

Journal: :Journal of the American Society for Horticultural Science 2002

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
مهدی میرزائی کارشناس ارشد بیماری شناسی گیاهی، پردیس ابوریحان، دانشگاه تهران حشمت الله امینیان دانشیار پردیس ابوریحان، دانشگاه تهران علی روستایی دانشیار پردیس ابوریحان، دانشگاه تهران

fire blight is an important worldwide disease of pome fruits that control of which through antibiotics is particularly critical. in this case and in absence of another chemical methods, the biocontrol methods can be considered as the best alternative for control of fire blight. in this study efficacy of 5 isolates of antagonistic bacteria belongs to pseudomonas fluorescens and pantoea agglomera...

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