The area of natural forest in Iran is approximately 12.4 million hectares, comprising 7.5%  of the total area of Iran. Forest management in the country was changed to the legislature after order of the Forest Nationalization Law in 1963. With  civilization development, pressure on forests was significantly increased. In the early  20th century a system of development planning began as a series ...

To deliver food security for the 9 billon population in 2050, a 70% increase in world food supply will be required. Projected climatic and environmental changes emphasize the need for breeding strategies that delivers both a substantial increase in yield potential and resilience to extreme weather events such as heat waves, late frost, and drought. Heat stress around sensitive stages of wheat d...

Several research and development efforts have been made to ensure food security in developing countries. Dissemination of improved agricultural technologies was used as the main avenue through which some increases supply achieved. However, insecurity remains a major challenge. This paper argues provides empirical evidence that reducing loss waste can be an effective energy security, natural res...

Broiler performance is sigTtificantly reduced by heat stress. This phenomenon isbecoming more marked as the genetic potential of commercial stocks improves. The problem cannot be completely eliminated by management practices, particulary in developing countries, because they are too costly. Better genetic adaptation to heat stress can facilitate efficient broiler production in hot climates. Imp...

Four experiments involving 16 pens of 8 to 10 crossbred steer calves each were conducted at Yuma, Arizona. Initial and final weights were approximately 170 and 275 kg, respectively. The experimental design was a 2 x 2 x 4 factorial replicated over 2 yr with main effects for season (summer, winter), diet (H = ground alfalfa hay, H + G = 50% ground alfalfa, 47.5% dry-rolled wheat and 2.5% molasse...

A field experiment was conducted at Bangladesh Agricultural Research Institute (BARI) farm, Gazipur to evaluate the effect of foliar application of potassium orthophosphate on grain yield and kernel quality of wheat under the terminal heat stress imposed by late sowing for two consecutive years (2008-09 and 2009-10). Five combinations of foliar applications of potassium orthophosphate and Tilt ...

Almost 1.3 million American men and women are expected to develop cancer during 2002, and more than 550,000 will die from the disease in the same year (5). There are approximately 9 million Americans living with cancer, according to the National Cancer Institute (7). Some of these individuals have been cured of cancer, whereas others are undergoing treatment or are still considerably ill from t...

Bio-energy from energy plants is expected to play an increasing role in the future energy system, with benefits in terms of reducing greenhouse gas emissions and improving energy security. Pistacia chinensis is believed to be one of the most promising non-food input for biodiesel production. This study focused on the marginal land availability for developing Pistacia chinensis-based bioenergy i...

introduction in recent years, rainfall deficiency was an increasing problem in most countries; which limited the production of agricultural crops. among abiotic stresses the plants encountered, drought stress is considered as the most important limiting factor in plants growth and reproduction in natural and agricultural systems through most parts of the world; while drought stress causes 45% i...