in order to investigate the effect of different levels of biological fertilizers on potato performance (cv. marfona), an experiment was carried out as strip plot based on rcb design with 3 replications in 2011 at isfahan. treatments included nitrocara at 4 levels (0: control, 220, 330 and 440 ml.ha-1) as a first factor and nitroxin+ phosphate at 4 levels (0+0: control, 20+100, 30+150 and 50+200...

background: a pot experiment was conducted to determine the toxic effects of some heavy metals on the plant growth and seed yield of maize (zea mays l.). materials and metheds: heavy metals mn, pb, cd, cr and co individually and in combinations were added as chloride salts in solutions to the pots before sowing. the test plants for were harvested after 80 days of germination and evaluated for n...

turfgrasses are usually important groundcover plants in many landscapes. they occupy the lowest surface of the landscape, close to pollutant particles. so, they can be an attractive option for environmental remediation. today, high concentrations of hazardous chemicals such as lead are among the most serious environmental problems. in vitro selection of turfgrass accumulator or tolerant of toxi...

in the present study, a field study was performed on some herbaceous plants growing in thesoutheast of ahvaz, where some metal producing industries are active. the aim of this studywas to investigate and compare manganese (mn) and zinc (zn) accumulation in seven dominantherbaceous plants in this area. plant samples were collected randomly. associated soils weresampled from the same sites next t...

the sucrose non-fermenting 1-related protein kinase 2 (snrk2) family members are plant unique serine/threonine kinases which play a key role in cellular signaling in response to abiotic stresses. the three snrk2 members including srk2d, srk2i and srk2e are known to phosphorylate major abscisic acid (aba) responsive transcription factors, abf2 and abf4, involved in an aba-dependent stress signal...

Hydrophobicity is an important property of chemical compounds. The logarithm the partition coefficient in 1-octanol/water (log P or log Pow) commonly used as index hydrophobicity. highly hydrophobic compounds which have large values may accumulate environment, causing general toxicity for wild organisms. In this paper, relationships aquatic and bioconcentration with another hydrophobicity index...

The effect and relative contributions of C P inputs on soil microbial biomass (MBP) accumulation were studied in three long-term fertility experiments with various climate characteristics at Qiyang, Yangling, Wulumuqi. maximum MBP all sites was 47.8 mg kg-1. accumulated per unit (mg kg-1 soil) correlated a 4.91 increase Olsen P. For each surplus (kg ha-1), manure stubble increased by 330, 3.7, ...

introduction integrated weed management is based on combination of several management methods, while reducing the rate of the use of herbicides, will result in efficient management and sustainable weed control. ability of crop tolerance and prevent weed growth are two important traits in weed competition. an appropriate and suitable cultivar, has high yield potential in the presence of weed and...

Heavy metal pollution at tourist attractions centers has caused widespread concern. In this study, the concentration of seven heavy metals (Pb, Cu, Cr, Zn, Ni, As, and Mn) in surface soil Lushan scenic area was measured, their characteristics were assessed using Nemerow comprehensive index geo-accumulation index; further, human non-carcinogenic carcinogenic risks evaluated by U.S. Environmental...

Mangroves acted as sinks of terrestrial pollutants, but the occurrence and contamination rare earth elements (REEs) in urban mangroves lacked systematic evaluation. In rapidly developing Shenzhen, China, four typical were selected to determine REEs mangroves, including Baguang mangrove (BGM) Futian (FTM) featured with ecological preserve central business district, respectively; Xixiang (XXM) Sh...