understanding the relationship between root yield and other traits in sugar beet may be a crucial step towards successful breeding of this important crop. path analysis provides a useful method in analyzing the genetic and phenotypic coefficients of correlations. this method is able to effectively unveil direct and indirect effects among traits of interest. in this research, root yield, yield c...

Today, planting winter cover crops to reduce herbicide is high considered. The purpose of this study was to examine the effect of barley grass cover crop on control weed of flix weld (Descurainia Sophia). This experiment was conducted at agricultural farm of Rezvan Junior College in kerman provinces (latitude 25 55 / N, longitude 53 26 / E , altitude 1755m) from September 2010 to April 2011. A ...

forest fragmentation results in a loss of forest interior and an increase in edge habitat. we studied how understorey bird community composition and habitat variables changed along an edge-to-interior gradient in a 1248-ha lowland rainforest patch in peninsular malaysia. birds and environmental variables such as vegetation structure and litter depth were detected within a 25-m radius of each of...

Given widespread concerns over human-mediated bee declines in abundance and species richness, conservation efforts are increasingly focused on maintaining natural habitats to support diversity otherwise resource-poor environments. However, habitat patches can vary composition, impacting landscape-level heterogeneity affecting plant-pollinator interactions. Plant-pollinator networks, especially ...

• Reforestation is rapid on abandoned agricultural land in boreonemoral Scandinavia. Norway spruce competitive and increasing the resulting recent forests. Species richness of plants, fungi higher surroundings with less tree cover. Restoration temperate deciduous forest requires removal spruce. Recent forests may be an asset for green infrastructure ecological restoration, but studies are neede...

The phenomenon of forest fires is the biggest threat and has an important role in natural damage, especially to plants nature. There are several elements that support occurrence land including human element, high temperature, vegetation composition others. level vulnerability very much needed by decision makers fire control activities, Special Purpose Forest Area (KHDTK) Buluh Cina educational ...

 In order to evaluate the effects of cover crops on reduced weed biomass in hybrid sunflower an experiment was carried in the research stations, Natural Resources Medicinal Plants (Samian_Ardabile) with 3 replicates in 1390-1391. The first factor was considered three type of cover crops, winter rye, spring barley, winter wheat with 2 control treatment, second factor was mulch management at two ...

The search for cultivation practices that provide productive, social and environmental benefits to the agroecosystem is of great importance sustainable intensification agriculture. objective this study was determine effect multifunctional microorganisms (MM) mix cover crops on gas exchange, production components grain yield soybean. In field experiment, conducted by two growing seasons, experim...

Change in land cover is thought to be one of the key drivers of pollinator declines, and yet there is a dearth of studies exploring the relationships between historical changes in land cover and shifts in pollinator communities. Here, we explore, for the first time, land cover changes in England over more than 80 years, and relate them to concurrent shifts in bee and wasp species richness and c...