STROBILATION OF THE SEA NETTLE,CHRYSAORA QUINQUECIRRHA, UNDER FIELD CONDITIONS

the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...

Photosynthesis in the Potato Under Field Conditions.

In spite of the importance of the potato as a food, little is known about the effect of environmental factors on photosynthesis in the plant. Studies with several other crops (1, 12, 16, 23, 24) have not only added to the knowledge of photosynthesis but have aided in understanding certain responses of these crops to environmental variations. VERDUIN and LooMIs (24) and GABRIELSON (10) have show...

The Evaluation of Three Commercial Pistachio Cultivars on UCB1-hybride Rootstock under Field Conditions

Pistachio is the most important nut that is produced in Iran. Little research has been done to examine the effect of UCB1-hybride rootstock plants as tissue culture for pistachios (2011 in Toba company).This study aims to evaluate three pistachio varieties on UCB1 hybrid rootstock.  The experiment was conducted as a randomized complete block design with three treatment groups (including Ohadi, ...

Increasing Antarctic Sea Ice under Warming Atmospheric and Oceanic Conditions

Estimates of sea ice extent based on satellite observations show an increasing Antarctic sea ice cover from 1979 to 2004 even though in situ observations show a prevailing warming trend in both the atmosphere and the ocean. This riddle is explored here using a global multicategory thickness and enthalpy distribution sea ice model coupled to an ocean model. Forced by the NCEP–NCAR reanalysis dat...

Apparent photosynthesis of soybean plants as affected by changes in leaf water potential under field conditions