this experiment was conducted in order to optimize the use of paddy fields as second cropping in the mazandaran province. study planed with 8 new cultivars and carried out in randomized complete block design with four replications during two years 2006 and 2007 in dashte-naz agricultural research station of sari. nursery prepared in the september and seedlings were transferred to the field in t...

BACKGROUND Single-use rocking-motion-type bag bioreactors provide advantages compared to standard stirred tank bioreactors by decreased contamination risks, reduction of cleaning and sterilization time, lower investment costs, and simple and cheaper validation. Currently, they are widely used for cell cultures although their use for small and medium scale production of recombinant proteins with...

BACKGROUND AND AIMS The wild progenitors of the Near Eastern legumes have low germination rates mediated by hardseededness. Hence it was argued that cultivation of these wild legumes would probably result in no yield gain. Based on the meagre natural yield of wild lentil and its poor germination, it was suggested that wild Near Eastern grain legumes were unlikely to have been adopted for cultiv...

Cobalt (Co) deficiency occurs in many parts of world especially in tropical and subtropical countries.Primary Co deficiency occurs only in places where the soil is deficient in Co. The type of soil and the presence of other substances like manganese and lime influence the absorption of Co (secondary Co deficiency). To determine the Co status in Shahrekord district, Iran, several important farms...

background: the main goal of the present study was to set up an axenic cultivation of acanthamoeba and assess the pathogenic ability of t4 genotypes from different clinical and environmental strains of acanthamoeba using two physical assays. methods: sixteen acanthamoeba isolates including 10 environmental and 6 clinical strains were cul-tured axenically. axenic cultivation was performed using ...

the perform type of the monopoly enterprises are diversified, which is caused due to combined action of multiple effects. The interactive performance between “gene type” and environment of the monopoly enterprises is one critical part. Accurate definition can assist to speed up expected benefits of the monopoly enterprises’ reform and construct the salary incentive mechanism of the monopoly ent...

The immediate effects of tillage on protected soil C and N pools and on trace gas emissions from soils at precultivation levels of native C remain largely unknown. We measured the response to cultivation of CO2 and N2O emissions and associated environmental factors in a previously uncultivated U.S. Midwest Alfisol with C concentrations that were indistinguishable from those in adjacent late suc...

Needs of human life from the beginning been an important factor We have been threatened by population growth, food security and human well- Men of science and technology with a new plan Maintain and improve their food security to make it work. In this investigation, meteorological data have been received from synoptic stations based on daily, monthly, and annually trend from Iran Meteorological...