Convolvulus arvensis L. Scop. (field bindweed) is a difficult weed to manage in organic cropping systems. suppression often requires intensive tillage and cultivation practices that have negative impacts on soil quality. To improve C. management organic, small grain systems, we compared ten system treatments field trial from the autumn of 2017 until harvest 2020 Corvallis, MT, USA. Cropping var...

in order to identify and determine weed population in sugar beet fields, 92 fields from five counties of kermanshah province in iran were selected and evaluated at two growing stages (early may and late september) in 2014. the weed population indices were calculated by counting the number of weeds separated on othe basis of genus and species. for all fields, the latitude, longitude and altitude...

Concerns about a global decline in pollinators have called for more knowledge the factors influencing wild pollinator abundance and diversity agroecosystems. Agricultural intensification has been identified as main cause of this “global crisis”, particularly due to reductions natural areas holding critical floral nesting resources. Maintaining native plants agricultural landscapes (e.g., field ...

Successful climbing by vines not only prevents shading by neighbouring vegetation, but also may place the vines beyond ground herbivores. Here we tested the hypothesis that herbivory might enhance climbing in a vine species, and that such induced climbing should be greater in the shade. We assessed field herbivory in climbing and prostrate ramets of the twining vine Convolvulus arvensis. We eva...

A field experiment was established to evaluate quantitative changes in weed species prevailing a crop rotation and 30-year cereal monoculture. The subject of the study included cropping systems: a) rotation, b) First (1989–1992) second (1993–1996) focused on infestation winter triticale monoculture; third (1997–2000) fourth (2001–2004) wheat; fifth (2005–2008), sixth (2009–2012), seventh (2013–...

Root segments of Convolvulus arvensis, the field bindweed, were examined with the electron microscope to make possible a description of the fine structural correlates of lateral root protrusion through cortical parenchyma. Particular attention was directed to the outermost primordium cells, derived by meristematic activity from the endodermis, and to the contiguous cortical parenchyma cells. By...