With climate change, favorable growing conditions for tree species are shifting northwards and to higher altitudes. Therefore, local populations are becoming less adapted to their environment. Assisted migration is one of the proposed adaptive measures to reduce the vulnerability of natural populations and maintain forest productivity. It consists of moving genetic material to a territory where...

the higher levels of essential elements in soil may be caused in optimum yields and crop quality. so it seems to be necessary to examine different levels of nutrients like fe and zn on plants and their productivity. to evaluate effects of iron and zinc application on yield and yield components of pimpinella anisum an experiment was conducted at the research farm of urmia university in 2009. tre...

The use of renewable resources and inputs is one of the fundamental principles of sustainable agriculture that enables maximum crop productivity and minimal environmental risk. Nutrient management may be achieved by the involvement of organic sources, bio-fertilizers, and micro-nutrients. Indiscriminate use of chemical fertilizers to achieve high yield and to compensate for lack of nutrients an...

Relevance. Adaptive plant breeding is considered an effective and affordable tool that allows to develop varieties are weakly responsive the emerging unfavorable conditions. Methodology. The current study of alfalfa samples was carried out on experimental plots ARC “Donskoy”. objects research were ARIPGR (VIR) collection (11 from USA, 16 Canada, 2 France, 1 sample Peru). Results. Estimation var...

the effect of water stress were studied on the agronomic traits related to yield of common bean by planting 32 genotypes in normal and water deficit conditions. these genotypes were evaluated in randomized complete block design with three replications in experimental field of faculty of agriculture, university of tehran, karaj campus in 2007. analysis of variance showed that there were signific...