نتایج جستجو برای: 4c or less freezing days and relative humidity

تعداد نتایج: 17043888  

Journal: :دانش گیاه پزشکی ایران 0
وحید زرین نیا دانشجوی سابق دکتری دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران محمد جوان نیکخواه دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج حمیدرضا زمانی زاده دانشیار دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران رحیم مهرابی استادیار مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، بخش پاتولوژی غلات، کرج وحید خسروی مربی پژوهش مؤسسه تحقیقات برنج کشور، مازندران

thrity seven isolates of magnaporthe grisea collected from several host plants from family of poaceae namely digitaria singuinalis, setaria italica, and echinochloa sp.were tested for their pathogenecity against two susceptible rice cultivars. conidial suspensions were prepared by the surfaces of 14-day-old cultures being washed with sterile water and adjusting the final concentrations to appro...

Journal: :Phytopathology 2002
S Sanogo A Pomella P K Hebbar B Bailey J C B Costa G J Samuels R D Lumsden

ABSTRACT Growth characteristics of the fungus Trichoderma stromaticum, a mycoparasite on the mycelium and fruiting bodies of Crinipellis perniciosa, the causal agent of witches'-broom disease of cacao, were evaluated under controlled environmental conditions. The ability of T. stromaticum to produce conidia and germinate on dry brooms was evaluated at three constant temperatures (20, 25, and 30...

F Monazjjemzadeh HK Chan MH Zarrintan

The use of proteins and peptides as human therapeutics has been increased in recent years. Lipase is a relatively homogeneous proteinaceous enzyme indicated in maldigestion. The purpose of the present study was to evaluate the effect of humidity along with compactional pressure on the enzymatic activity of wheat germ lipase. Samples of lipase powder were kept at different relative humidity (RH)...

Journal: :Acta clinica Croatica 2017
Marijana Knezović Sanja Pintarić Marko Mornar Jelavić Višnja Nesek Goran Krstačić Mislav Vrsalović Aljoša Šikić Ivan Zeljković Hrvoje Pintarić

In this study, we investigated the correlation of air temperature, pressure and concentration of air pollutants with the rate of admissions for cardiac arrhythmias at two clinical centers in the area with a humid continental climate. This retrospective study included 3749 patients with arrhythmias admitted to emergency department (ED). They were classified into four groups: supraventricular tac...

Journal: :Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria 2010
Huarrisson Azevedo Santos Isabele da Costa Angelo Marcos Pinheiro Franque Usha Vashist Aline Falqueto Duarte Cristiane Divan Baldani Sandra Maria Gomes Thomé João Luiz Horacio Faccini Carlos Luiz Massard

The current study investigated the biology of nymphs of the first and second instars of Argas (Persicargas) miniatus. Nymphs were deprived of food for 15, 30 or 60 days and held at 27 ± 1 °C and 80 ± 10% relative humidity (controlled conditions) or at room conditions of temperature and relative humidity. Nymphs of first instar deprived of food for 15 or 30 days molted to second and third instar...

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

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...

2011
K. H. Chan J. S. Malik Peiris S. Y. Lam L. L. M. Poon K. Y. Yuen W. H. Seto

The main route of transmission of SARS CoV infection is presumed to be respiratory droplets. However the virus is also detectable in other body fluids and excreta. The stability of the virus at different temperatures and relative humidity on smooth surfaces were studied. The dried virus on smooth surfaces retained its viability for over 5 days at temperatures of 22-25°C and relative humidity of...

2013
Ahmad R Norhisham Faizah Abood Muhamad Rita Khalid Rehman Hakeem

Wood products are highly exposed to infestation by powder post beetles. Dinoderus minutus (bamboo borer) is a wood boring beetle that seriously damage dried bamboo and finished bamboo products. Management of D. minutus using pesticides showed negative effects on environment despite being very costly. By understanding influence of natural climatic conditions on their reproductive behaviour, coul...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ریاضی و کامپیوتر 1389

the concepts of similarity and dissimilarity have been the interest of many researchers. basically, in the studies the similarity between two objects or phenomena, has been discussed. in this thesis, we consider the case when the resemblance or similarity among three objects or phenomena of a set, 3-similarity in our terminology, is desired. later we will extend our definitions and propos...

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