Results 221 to 230 of about 1,874 (256)
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Mechanical damage to annual weeds and carrots by in‐row brush weeding
Weed Research, 1999Field experiments were carried out in order to assess the selectivity of in‐row brush weeding in carrots with a natural flora of annual weeds, represented by Urtica urens L., Stellaria media (L.) Vill., Chenopodium album L., Senecio vulgaris L., Capsella bursa‐pastoris (L.) Med., Chamomilla suaveolens (L.) Pursh Buch. and Matricaria inodora L.
null Fogelberg, null Gustavsson
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Mechanical Weed Control in Agriculture
2001Weeds are plants that are considered undesirable in a crop at a given time.Weeds are harmful for a number of reasons. They reduce crop yields, interfere with the harvest, support pathogens and insect pests and contaminate seeds.
Daniel C. Cloutier, Maryse L. Leblanc
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Evolution of herbicide resistance mechanisms in grass weeds
Plant Science, 2014Herbicide resistant weeds are becoming increasingly common, threatening global food security. Here, we present BrIFAR: a new model system for the functional study of mechanisms of herbicide resistance in grass weeds. We have developed a large collection of Brachypodium accessions, the BrI collection, representing a wide range of habitats.
Maor, Matzrafi +4 more
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Thermal Weed Control: History, Mechanisms, and Impacts
2018In the recent years, there has been a revival in the development and improvement of thermal weed control to deliver heat for weed management. Thermal weed control techniques are based on foliar contact mechanisms in which temperatures of approximately 100°C are applied for the duration of few seconds, resulting in intracellular water expansion and cell
Peerzada, Arslan M. +1 more
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Weed seed production, crop planting pattern, and mechanical weeding in wheat
Weed Science, 2002Abstract Experiments were carried out to investigate weed seed production in widely spaced spring wheat crops that received aggressive mechanical weed control (hoeing and harrowing) compared with that in narrowly spaced crops receiving less aggressive mechanical control (harrowing only). Three species (wild buckwheat [Polygonum convolvulus], ladysthumb
Mertens, S.K., Jansen, J.
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Early Physiological Mechanisms of Weed Competition
Weed Science, 2012Early physiological mechanisms that occur in crop plants in response to neighboring weeds are not well understood. In this experiment, it was hypothesized that, in the absence of direct competition for resources, low red to far red ratio (R:FR) reflected from neighboring weeds will modulate the phenylpropanoid pathway, increase hydrogen peroxide (H2O2),
Maha Afifi, Clarence Swanton
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OPTIONS FOR MECHANICAL WEED CONTROL IN STRING BEAN
2004Two field experiments were carried out in 2000 and 2001 on a sandy-loam soil to compare different options (harrowing or hoeing) for mechanical weed control in string bean (Phaseolus vulgaris L.). The first experiment investigated combinations of four tine adjustments and two treatment intensities (one or two passes) of a spring-tine harrow.
RAFFAELLI, MICHELE +3 more
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