نتایج جستجو برای: these two important biocontrol agent species of plant diseases

تعداد نتایج: 21377729  

Journal: :FEMS microbiology letters 1999
E A Emmert J Handelsman

Biological control offers an environmentally friendly alternative to the use of pesticides for controlling plant diseases. Unfortunately, growers continue to use chemical control over biological agents, and lack of knowledge often contributes to the downfall of a biocontrol agent. Knowledge of the biological environment in which the agent will be used and of how to produce a stable formulation ...

Journal: :Bulletin of entomological research 2001
K Dhileepan

Six species of insects and a rust fungus have been successfully established for biocontrol of the weed Parthenium hysterophorus L. in Queensland, Australia. Effectiveness of biocontrol insects was evaluated at two properties in Queensland during 1996-97 based on an exclusion experiment using insecticides. Parthenium-infested plots with and without biocontrol insects were sampled at monthly inte...

2002
C. R. Howell

Fungal species belonging to the genus Trichoderma are worldwide in occurrence and easily isolated from soil, decaying wood, and other forms of plant organic matter. They are, for the most part, classified as imperfect fungi, in that they have no known sexual stage. Rapid growth rate in culture and the production of numerous spores (conidia) that are varying shades of green characterize fungi in...

2016
Harald Berger Amira Yacoub Jonathan Gerbore Damien Grizard Patrice Rey Angela Sessitsch Stéphane Compant

The oomycotaPythium oligandrumPo37 is used as a biocontrol agent of plant diseases. Here, we present the first draft of theP. oligandrumPo37 genome sequence, which comprises 725 scaffolds with a total length of 35.9 Mb and 11,695 predicted protein-coding genes.

Journal: :گیاه پزشکی 0
شیراحمد سارانی عضو هیئت علمی دانشکده کشاورزی، دانشگاه زابل عباس شریفی تهرانی استاد گروه گیاهپزشکی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران مسعود احمدزاده دانشیار گروه گیاهپزشکی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمد جوان نیکخواه دانشیار گروه گیاهپزشکی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

biological control of soil borne plant pathogens with antagonistic microorganism has been more attracting interest. especially, burkholderia strains have been intensively investigated as biological agents. the objective of this study was finding an effective biologica control agent against the canola damping off caused by rhizoctonia solani. rhizoctonia damping-off is one of the most important ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1390

this study attempted to explore if teaching english collocations through two different modes of awareness-raising and input flooding has any possible differential effect on immediate retention as well as retention in a delayed assessment. it also compared the possible differential effect of teaching english collocations implicitly and explicitly on actively using the items in writing. m...

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
مهدی داوری استادیار بیماری شناسی گیاهی گروه گیاه پزشکی، دانشکدة کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی، اردبیل رباب اعزازی دانشجوی دکتری بیماری شناسی گیاهی گروه گیاه پزشکی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج

grape, like other horticultural products due to high humidity, low relative ph and wealth of nutrients, is subjected to attack by pathogenic fungi during the harvest and storage stages. in this study, at first, the some post-harvest pathogenic fungi of grape were isolated in meshgin-shahr and two fungal species including botrytis cinerea and cladosporium cladosporioides were identified as the d...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده علوم 1389

this research concentrates on the lithostratigraphy, biostratigraphy, microfacies and sedimentary environment of the asmari and gachsaran formations at southwest firuzabad. the thickness of the studied section in all 608.95 meters that 220.8 meters belong to the asmari formation and 387.95 meters belong to the gachsaran formation (champe and mol members). in the study area, the asmari formation...

2005
Anthony Caesar

Early research leading to the successful biological control of invasive species such as Opuntia spp., and Hypericum perforatum set examples and provided data useful for research programs that would follow. However, this early work failed to become established as a source of applicable principles for later workers in weed biocontrol. Recently, retrospective and parallel studies have been suggest...

2013
Caroline Fadeke Ajilogba Olubukola Oluranti Babalola Faheem Ahmad

Fusarium solani is the causative organism of Fusarium wilt of tomato (Lycopersicon esculentum Mill). Four Bacillus spp identified as B. amyloliquefaciens, B. cereus, B. pumilus and B. subtilis were tested for biocontrol activities in vitro as zone of inhibition and in vivo as percent disease control and disease incidence. The result from in vitro analysis showed that B. amyloliquefaciens inhibi...

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