Results 51 to 60 of about 172,326 (237)

Soil‐dependent variation in strigolactone signaling distance revealed by a parasitic seed germination bioassay

open access: yesPest Management Science, EarlyView.
A parasitic seed germination bioassay reveals strong soil‐dependent variation in strigolactone signaling distance, controlled by physical and biological soil properties, which shapes signaling range and parasitic weed infection risk. Abstract BACKGROUND Strigolactones are root‐exuded plant metabolites acting as germination stimulants for several ...
Hammam Ziadne   +2 more
wiley   +1 more source

THE EFFECT OF NO-PLOUGHING TILLAGE USING COVER CROPS ON PRIMARY WEED INFESTATION OF CARROT

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2015
In the era of sustainable agriculture, is looking for new unconventional methods to control weed infestation. The aim of the study was to determine the effect of cover crop biomass and the manner and time of mixing it with the soil on primary weed ...
Marzena Błażewicz-Woźniak   +3 more
doaj  

Weediness of agrocenoses in grain-fallow crop rotation depending on agrotechnological methods [PDF]

open access: yesE3S Web of Conferences
The purpose of this research was to study the influence of basic tillage systems and chemicalization options on the weed infestation of agrocenoses in a grain-fallow crop rotation.
Shabalkin Alexey   +2 more
doaj   +1 more source

2‐Amino‐3H‐phenoxazin‐3‐one is a lead inhibitor of Cuscuta campestris early development: structure–activity relationships of o‐aminophenol‐derived allelochemicals

open access: yesPest Management Science, EarlyView.
Phenoxazinones caused differential types of phytotoxic effects in C. campestris early development. APO is a coherent lead inhibiting C. campestris germination and early seedling growth. Abstract BACKGROUND 2‐Amino‐3H‐phenoxazin‐3‐one (synonym: questiomycin A; abbreviated as APO or Phx‐3) is a naturally occurring phenoxazinone‐type allelochemical with ...
Cristina Díaz‐Franco   +5 more
wiley   +1 more source

EFFECT OF SOIL CULTIVATION AND INTERCROP PLANT GROWING UPON WEED INFESTATION OF SPANISH SALSIFY (Scorzonera hispanica L.)

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2011
The quantity of weeds depends on biotopic factors, on the supply of seeds in the soil and agrotechincal procedures, which stimulate or inhibit weed germination and development.
Marzena Błażewicz-Woźniak   +1 more
doaj  

Weed infestation of crops in different soils in the protective zone of Roztocze National Park. Part I. Winter and spring cereals

open access: yesActa Agrobotanica, 2013
The study on weed infestation of crops in different soils in the protective zone of RPN was conducted in the years 1991-1995. The characterization of weed infestation of winter and spring cereals was based on 306 phytosociological records.
Marta Ziemińska-Smyk, Czesława Trąba
doaj   +1 more source

Analysis of the Heterogeneity of Weed Infestation in Cereal Stands

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2015
The aim of this study was to evaluate the heterogeneity of the incidence of individual weed species on a selected experimental field. This field was situated in the cadastre of the village Žabčice (South Moravian Region, Czech Republic). To evaluate the intensity of weed infestation, a field experiment was established.
Jan Winkler   +2 more
openaire   +2 more sources

Mortality in an invasive ant does not scale linearly with fipronil exposure

open access: yesPest Management Science, EarlyView.
Increasing fipronil concentration did not linearly increase yellow crazy ant mortality when introduced via horizontal transfer; high doses may limit food sharing. Queen mortality was low, and surviving workers were averse to feeding. Abstract Background Controlling eusocial invasive and other pestiferous insects is difficult.
Peter Yeeles, Angela Strain, Lori Lach
wiley   +1 more source

The influence of soil tillage systems and weed control methods on weed infestation of potato (Solanum tuberosum L.)

open access: yesActa Agrobotanica, 2012
A field experiment was conducted in the years 2002- 2004 at the Zawady Agricultural Experimental Station (52o06' N; 22o06' E), belonging to the University of Podlasie in Siedlce, Poland. The investigated factors were two soil tillage systems (traditional
Krystyna Zarzecka   +2 more
doaj   +1 more source

Weed detection using unmanned aircraft vehicles [PDF]

open access: yes, 2014
In contrast to agricultural remote sensing technologies, which are based on images from satellites or manned aircrafts, photogrammetry at low altitude from unmanned aircraft vehicles lead to higher spatial resolution, real-time processing and lower costs.
Feistkorn, Dominik   +3 more
core   +1 more source

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