نتایج جستجو برای: tylenchorhynchus crassicaudatus

تعداد نتایج: 193  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کردستان - دانشکده کشاورزی و منابع طبیعی 1390

هدف از مطالعه ی حاضر شناسائی فون نماتد های انگل گیاهی مزارع سیب زمینی (در حدود 12500 هکتار) در سه ناحیه ی استان کردستان بود. در این ارتباط 73 نمونه ی مرکب خاک از اطراف ریشه در عمق بین 15تا 25 سانتیمتری به طور تصادفی از چهل و چهار روستا و حومه ی سه شهرستان قروه، دهگلان و بیجار با تناوب محصولات مختلف کشاورزی جمع آوری گردید. هر نمونه ی مرکب، شامل حداقل 15 تا 20 زیر نمونه بود که از سطح نیم تا یک هک...

Journal: :Diversity 2022

Chironomids are one of the most biodiverse and abundant members freshwater ecosystems. They a food source for many organisms, including fish water mites. The accurate identification chironomids is essential applications in ecological research, determining which chironomid species present diets diverse predators. Larval adult from habitats, lakes, rivers, inland gardens, coastal vegetation, near...

Journal: :Journal of nematology 1976
R Aycock K R Barker D M Benson

Three cultivars of Ilex crenata: 'Helleri', 'Convexa', and 'Rotundifolia' were inoculated with either Criconemoides xenoplax, Helicotylenchus dihystera, Hoplolaimus galeatus, Trichodorus cltristiei, or Tylenchorhynchus claytoni at 0, 200 (low), or 2,000 (high) nematodes/ 15-cm diam pot. Plants were kept in the greenhouse 10 mo prior to transplanting into 2.25 m(2) field plots. Helleri was sever...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده کشاورزی 1389

به منظور شناسایی فون نماتدهای زیر راستهtylenchina از سه استان بامیان، مزارشریف و نینگرهار طی سالهای 1388و 1389، تعداد 35 نمونه خاک وریشه از گیاهان زراعی و باغی جمع آوری گردید. پس از انتقال نمونه ها به آزمایشگاه، عملیات شستشوی خاک و ریشه ها، استخراج نماتدها، تثبیت و انتقال آنها به گلیسیرین با استفاده از روش دگریس (de grisse, 1969) انجام گرفت. سپس از نماتدهای جدا شده به تفکیک جنس، اسلایدهای میکرو...

Journal: :Journal of nematology 1977
R Rodriguez-Kabana C S Hoveland R L Haaland

Seeds of 'Coker 68-15' wheat and 'Maton' rye were immersed for 5 min in acetone solutions of oxamyl, carbofuran, or phenamiphos containing 0, 0.25, 0.5, 1.25, 2.5, or 5.0% (w/v) nematicide; after drying, seeds were planted in pots containing 500 gm of sandy loam naturally infested with Hoplolaimus galeatus and Tylenchorhynchus claytoni. In sterilized soil, only the 5% concentrations of all nema...

Journal: :Journal of nematology 2004
Richard W Smiley Kathy Merrifield Lisa-Marie Patterson Ruth G Whittaker Jennifer A Gourlie Sandra A Easley

Soils and roots of field crops in low-rainfall regions of the Pacific Northwest were surveyed for populations of plantparasitic and non-plant-parasitic nematodes. Lesion nematodes (Pratylenchus species) were recovered from 123 of 130 non-irrigated and 18 of 18 irrigated fields. Pratylenchus neglectus was more prevalent than P. thornei, but mixed populations were common. Population densities in ...

Journal: : 2023

Soils collected from 28 canola fields in Malkara, Süleymanpaşa, Muratlı, Hayrabolu, and Ergene districts of Tekirdağ were examined for the determination nematode fauna. In soils taken 0-60 cm depth each field, genera nematodes recovered by modified Baermann Funnel method. Of these, eight bacterivores, three fungivores, five omnivores, predators, rest plant-parasitic species. Nematodes survey ar...

Journal: :Molecular biology and evolution 1987
J A Lloyd A N Lamb S S Potter

The phi-screen, a method of phylogenetic screening, can be employed to detect repetitive sequence families that differentially hybridize between closely related species. Such differences may involve sequence divergence or variations in copy number, including total presence versus absence of a family of repeated DNA. We present the results of a phi-screen comparing the human genome to that of th...

2013
Jana Christophoryová Anna Šestáková Miroslav Krumpál Peter Fenďa

The order Schizomida is a small group of arachnids, currently represented by two recent families: Protoschizomidae Rowland, 1975 with two genera and 12 species; and Hubbardiidae Cook, 1899 with 48 genera and 271 species worldwide (Harvey 2007, Armas 2010, Monjaraz-Ruedas 2012). Schizomids can be found in leaf litter, under rocks, in caves and other subterranean voids, in many tropical and subtr...

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