Determination and comparison of weed flora in two different Soybean fields; the case of Mazandaran State, Iran
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2012, Vol 3, Issue 8
Abstract
In order to study about the diversity of species, functional and structure of weeds community on soybean farms in two different areas; fields and mountains of both zones in Neka and Galugah, located on east part of Mazandaran State, 410, number of samplings from 2820 hectares was chosen from Agriculture farms on early stage of growth nodes on fourth step about Soybean have been studied. Sampling was done randomly, by systematic method according to W pattern by 0.5×0.5 quadratic square meter and density, percentage of abundance, and weeds uniformity were determined by separating genus and species. In this research 47 species of weeds from 23 families of plants were identified. Asteraceae and Poaceae families, each one with eight genuses had the highest kind of dicotyledonous and monocotyledonous. Also annual weeds with 33 species and perennial with 13 different species had sequent the highest and lowest number of a species to themselves. At the soybean’s farm which is located on mountain areas, the lack of herbicide application, frequency of weeds by wide leaves was higher. Also in this area the relative of abundance on C3 to C4 species with comparing to field areas, had the higher among themselves, because the lack of average temperature. The highest Shannon and Simpson indices, on mountain areas were seen respectively equal to 1.13 and 0.14 and lowest of these indices on field areas were sequence equal to 1.04 and 0.09. The differences between managements approaches towards these two areas were studied an agronomy filters over the population and combined different weed species were effective.
Authors and Affiliations
Hamid Salehian*| Department of Weed Science. Faculty of Agriculture and Natural Resources, Islamic Azad University, Qaemshahr Branch, Iran.hsalehian@yahoo.com, Mehdi Khalili| Islamic Azad University, Qaemshahr Branch, Iran.
Functions of working memory (visual-auditory) Comparison in normal children and Slow learner
The aim of current research is comparing active memory functions (visual-auditory) in normal children and children with slow learning. The research population consists of all the girl students of primary schools of Tehra...
The Analysis Role Organization Governments Suspended on Economic Regulation of Market
Economic activities are one of the most important components in the market. Economic activities are development index and the economic growth in every country. Various planes can be applied for improving business environ...
Civil liability and the role of insurance in car accident
Right of civil liability is based on consumption of damage from damager. Therefore any losses must be consumption in this concept. One subject in civil liability and special rules in civil law is the right of consumption...
Evolution of urban system in Mazandaran province during 1956-2011
studying urban system in Iran is known as urban network. Urban planning should be done with corporation of geographers, urban sociologists, economists, planners and architects to be in the best manner. Obviously, enterin...
Evaluation of Iranian wheat cultivars Reaction to Septoria Tritici Blotch and virulence Survey of Mycosphaerella graminicola in Khuzestan province
Septoria tritici blotch is an important wheat disease in many areas of the world including Iran's warm, humid regions.Evaluation the reaction of wheat genotypes and on the other hand Identifying pathogen virulence factor...