Results 41 to 50 of about 15,504 (167)
The paper addresses the case of Daucus carota L. extract, obtained by liquid-solid extraction methods (heat reflux, Soxhlet extraction and maceration) using ethanol solution of different concentrations as extraction reagent.
CLAUDIA MAXIM +6 more
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Com o objetivo de avaliar a interferência das plantas daninhas sobre a produtividade e qualidade de cenoura (Daucus carota), foi realizado um experimento no período de julho a outubro de 2007, em Mossoró-RN. O delineamento experimental utilizado foi o de
I.A.A. Soares +7 more
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Tachinidae (Diptera) as Floral Visitors and Pollinators in Natural and Managed Systems
We review the roles of bristle flies (Tachinidae) as pollinators in natural and managed systems. We find that most tachinid genera visit flowers and that floral‐adapted mouthparts have evolved repeatedly many times in the family. We review patterns of floral specificity and assess the efficacy of tachinids as pollinators with case studies.
John O. Stireman III +1 more
wiley +1 more source
Tween® 20-Enhanced Bioreduction of Acetophenones Promoted by Daucus carota Root
The effect of surfactants on the bioreduction of acetophenones mediated by carrot (Daucus carota) root was investigated. Among the tested surfactants, Tween® 20 slightly improved the conversion.
Monique Rodrigues da Costa +1 more
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No need to seed: restoring species‐rich grassland on former arable fields by natural regeneration
Abstract Introduction Over the last century, agricultural intensification has caused substantial losses of semi‐natural species‐rich grasslands. One means of restoring grassland habitat is to abandon farmed land, followed by mowing and/or grazing of the established vegetation to facilitate meadow diversification. Objectives This study investigated post‐
Carl D. Sayer +3 more
wiley +1 more source
Abstract Introduction Prairie restoration on degraded lands may be influenced by seed mix characteristics, including species richness and legume establishment. Soil amendments may facilitate restoration; however, the practical usefulness of techniques such as applications of whole soil and leaf mulch remains relatively unclear.
Valerie N. Thurston +4 more
wiley +1 more source
High-throughput sequencing (HTS) has proven a powerful tool to uncover the virome of cultivated and wild plants and offers the opportunity to study virus movements across the agroecological interface.
Deborah Schönegger +7 more
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Fire is an ecological factor that affects ecosystem structure and functioning and determines later recovery of the ecosystem through the modification of biological processes, such as seed germination and seedling establishment.
Sheila F. Riveiro +4 more
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Weed seed contamination in vegetable seed lots poses risks to commercial seed quality and biosecurity, yet few studies have examined contamination in vegetable crops, and none have compared pre‐ and post‐cleaning levels using quantitative seed counts. We analysed 1,322 field‐dressed (FD) and machine‐dressed (MD) purity test results from four vegetable ...
Jesse M. Rubenstein +3 more
wiley +1 more source
Enzymatische Acylierung von Sterin-14C-Glucosid durch ein lösliches Enzym aus Karotten
A soluble enzyme preparation from homogenized carrots (Daucus carota L.) catalyzes the formation of acylated steryl 14C-glucoside from steryl 14C-glucoside when either mono- or digalactosyl diglyceride is supplied as acyl donor.
W. Eichenberger, E.C. Grob
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