نتایج جستجو برای: dixired cultivar was recorded as highly susceptible

تعداد نتایج: 7465879  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391

abstract pragmatics is the study of communicative action in its sociocultural context. communicative action includes not only using speech acts (such as apologizing, complaining, complimenting, and requesting), but also engaging in different types of discourse and participating in speech events of varying length and complexity. the present study aimed to investigate the assessment of pragm...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

in this study, scour of mashkid bridge pier located in mashkid river of saravan county has been studied and to measure the scour rate, the numerical model hec-ras 4.0 has been used. upon selection of mashkid river as the case study and whereas the studied zone is important with respect to the climatic conditions and showery monsoon raining and flowing the great and destructive floodwaters, ther...

Journal: :Journal of nematology 2006
P A Donald P E Pierson S K St Martin P R Sellers G R Noel A E Macguidwin J Faghihi V R Ferris C R Grau D J Jardine H Melakeberhan T L Niblack W C Stienstra G L Tylka T A Wheeler D S Wysong

The soybean cyst nematode Heterodera glycines (SCN) is of major economic importance and widely distributed throughout soybean production regions of the United States where different maturity groups with the same sources of SCN resistance are grown. The objective of this study was to assess SCN-resistant and -susceptible soybean yield responses in infested soils across the north-central region. ...

Journal: :Journal of nematology 2003
C A Bradley G R Noel C R Grau J M Gaska N C Kurtzweil A E Macguidwin L M Wax G L Hartman W L Pedersen

Several abiotic and biotic stresses can affect soybean in a growing season. Heterodera glycines, soybean cyst nematode, reduces yield of soybean more than any other pathogen in the United States. Field and greenhouse studies were conducted to determine whether preemergence and postemergence herbicides modified the reproduction of H. glycines, and to determine the effects of possible interactive...

Journal: :Phytopathology 2004
C M Cox K A Garrett R L Bowden A K Fritz S P Dendy W F Heer

ABSTRACT Because of differences in life histories between Puccinia triticina, a highly specialized, polycyclic, windborne pathogen with a shallow dispersal gradient, and Pyrenophora tritici-repentis, a residue-borne pathogen with a steep dispersal gradient, wheat mixtures are expected to be more effective at controlling leaf rust than tan spot. The objectives of this research were to determine ...

Journal: :Journal of experimental botany 2015
María M Scandiani Alicia G Luque María V Razori Lucila Ciancio Casalini Takayuki Aoki Kerry O'Donnell Gerardo D L Cervigni Claudia P Spampinato

Soybean germplasm exhibits various levels of resistance to Fusarium tucumaniae, the main causal agent of sudden death syndrome (SDS) of soybean in Argentina. In this study, two soybean genotypes, one susceptible (NA 4613) and one partially resistant (DM 4670) to SDS infection, were inoculated with F. tucumaniae. Disease symptoms were scored at 7, 10, 14, and 25 days post-inoculation (dpi). The ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

a large number of single research studies on the effects of strategy-based instruction (sbi) in teaching english as a foreign or second language has been conducted so far. however, the lack of a comprehensive meta-analysis targeting the effectiveness of english language sbi is observed. moreover, the findings of experimental studies regarding the context of the english language, proficiency lev...

Journal: :کشاورزی (منتشر نمی شود) 0
علی دهقانی عضو هیات علمی مرکز تحقیقات کشاورزی استان خوزستان حسن رضا اعتباریان استاد گروه بیماری شناسی گیاهی، پردیس ابوریحان، دانشگاه تهران عزیزاله علیزاده استاد گروه بیماری شناسی گیاهی، دانشگاه علوم کشاورزی دانشگاه تربیت مدرس

the cultivars green mignonette and all year which are resistant and susceptible to fusarium wilt, respectively were studied for histopathological aspect during the development of fusarium oxysporum f. sp. lactucum. 15 days - old seedling was inoculated by root dip method in spore suspension of the pathogen with concentration about 5 x 106 spores/ml. sampling was carried out at different times (...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده علوم انسانی 1392

the present study is an attempt to investigate the potential impact of inspirational quotes on improving english abstract vocabulary recall. to achieve this goal, a multiple choice language proficiency test of 60 items including vocabulary and grammar component was administered to a sample of 63 second-semester male and female students whose age ranged between 17 to 22 and they were studying en...

Journal: :Journal of nematology 1994
M C Vanderspool D T Kaplan T G McCollum R J Wodzinski

The closely related soybean (Glycine max) cultivars Centennial and Pickett 71 were confirmed to be resistant and susceptible, respectively, to the root-knot nematode Meloidogryne incognita. Increases in superoxide dismutase (SOD) activity were detected in roots of both soybean cultivars 48 hours following inoculation. Superoxide dismutase activity increased in roots of the susceptible cultivar ...

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