نتایج جستجو برای: genetic soil types

تعداد نتایج: 1237607  

B. Mohebi, Gh. Ghodrati Amiri, M. Taheri,

This paper presents a suitable and quick way to choose earthquake records in non-linear dynamic analysis using optimization methods. In addition, these earthquake records are scaled. Therefore, structural responses of three different soil-frame models were examined, the change in maximum displacement of roof was analyzed and the damage index of whole structures was measured. The soil classifica...

2009
Vanaporn Wuthiekanun Direk Limmathurotsakul Narisara Chantratita Edward J. Feil Nicholas P. J. Day Sharon J. Peacock

BACKGROUND The soil-dwelling Gram-negative bacterium Burkholderia pseudomallei is the cause of melioidosis. Extreme structuring of genotype and genotypic frequency has been demonstrated for B. pseudomallei in uncultivated land, but its distribution and genetic diversity in agricultural land where most human infections are probably acquired is not well defined. METHODS Fixed-interval soil samp...

2017
Ekaterina A Ivanova Ilia O Korvigo Boris F Aparin Evgenii L Chirak Elizaveta V Pershina Nikolay S Romaschenko Nikolai A Provorov Evgeny E Andronov

This study is a comparative analysis of samples of archived (stored for over 70-90 years) and modern soils of two different genetic types-chernozem and sod-podzolic soils. We revealed a reduction in biodiversity of archived soils relative to their modern state. Particularly, long-term storage in the museum exerted a greater impact on the microbiomes of sod-podzolic soils, while chernozem sample...

2002
TÓTH Tibor VÁRALLYAY György

As salt-affected soils (SAS) are widespread in Hungary, several classification schemes have been proposed for them during the last centuries. These soils are inherently related to soil salinity/sodicity/alkalinity and the consequential hydrophysical properties of the soil; therefore, they present severe abiotic stress for plants and animals. Based on the approach of the assessment of the soil, ...

Journal: :Soil Science and Plant Nutrition 1955

Journal: :Soil Science Society of America Journal 1922

Journal: :علوم گیاهان زراعی ایران 0
بنفشه جلال زاده مقدم شهری مسعود بهار خورشید رزمجو

evaluation of genetic diversity is a considerable approach to screen within indigenous rhizobial population for compatible, highly effective strains, which can be further utilized as rhizobial inoculums. genetic diversity of rhizobium isolates from three clover species grown in soil samples of seven different geographical regions in iran was investigated by repetitive extra genomic palindromic ...

2007
R. Sonnleitner F. Schinner

Studies to the feasibility to characterize soil types by soil microbiological and biochemical analysis focus on the existence of microbial and biochemical characteristics distinctive to individual soil types. Many authors have attempted to elucidate relationships between microbiological and physico-chemical properties of different soil types (DUTZLER-FRANZ, 1977a, b; KHAZIYEV and KHABIROV, 1983...

2016
Stuti Sah Rajni Singh

Pseudomonas, an enormously diverse genus of the γ-Proteobacteria, is an important member of soil microbial communities. In this study, genetic heterogeneity and plant growth promotory property of Pseudomonas was compared within the group Pseudomonas sensu stricto isolated from the lesser explored niches of Himalayan region. A significant difference (P < 0.001 in total Pseudomonas count) was obs...

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