Results 21 to 30 of about 823,232 (162)
Química Nova, 2013 A bioassay-guided fractionation of culture filtrates of the fungus Alternaria euphorbiicola, a pathogen of the weed Euphorbia heterophylla, led to the isolation of anhydromevalonolactone (1), tyrosol (2), (R)-( - )-mevalonolactone (3), and ...
Eduardo Vinícius Vieira Varejão +3 more
doaj +1 more source
Frontiers in Plant Science, 2016 Abscission is a highly regulated and coordinated developmental process in plants. It is important to understand the processes leading up to the event, in order to better control abscission in crop plants.
Anne Kathrine (Trine) eHvoslef-Eide +8 more
doaj +1 more source
Planta Daninha, 2011 A leiteira (Euphorbia heterophylla) é uma planta daninha de ciclo anual encontrada com frequência em lavouras de soja na região Sul do Brasil, controlada em lavouras de soja geneticamente modificada (Roundup Ready® - RR) com uso do herbicida glyphosate ...
L Vargas +5 more
doaj +1 more source
Acetolactate synthase activity in Euphorbia heterophylla resistant to ALS- and protox- inhibiting herbicides [PDF]
Planta Daninha, 2013 The objective of this study was to determine the activity of the enzyme acetolactate synthase in biotypes of wild poinsettia (Euphorbia heterophylla) with multiple resistance to ALS- and Protox- inhibitors in the presence and absence of imazapyr ...
E. Xavier +6 more
doaj +1 more source
Revista Brasileira de Plantas Medicinais, 2009 O objetivo do presente trabalho foi caracterizar o efeito alelopático do extrato aquoso de folhas de A. annua sobre a germinação de sementes e o desenvolvimento de plântulas de alface (Lactuca sativa L.) e leiteiro (Euphorbia heterophylla L.).
E.C. Magiero +5 more
doaj +1 more source
INHERITANCE OF RESISTANCE TO PROTOPORPHYRINOGEN OXIDASE INHIBITOR HERBICIDES IN WILD POINSETTIA [PDF]
Planta Daninha, 2016 Weed resistance to herbicides is a major global problem for agriculture. In recent years, the increased use of herbicides, without proper planning, has led to a large increase in the number of cases of weed biotypes that are resistant to one or more ...
A.P. BRUSAMARELLO +4 more
doaj +1 more source
Weed Occurrence in Sugarcane as Function of Variety and Ground Straw Management1 [PDF]
Planta Daninha, 2016 This study aims to verify the effect of crop varietal architecture and straw removal from planting rows in the occurrence of weeds in sugarcane and infer about the sustainability of the production system with no herbicide application.
G. CONCENÇO +5 more
doaj +2 more sources
Allelopathy of aqueous Pachyrhizus erosus L. extracts on Euphorbia heterophylla and Bidens pilosa
Pesquisa Agropecuária Tropical, 2018 Allelopathy contributes to the sustainable management of weeds in growing areas, due to its ability to inhibit the development of weed species. This study aimed to evaluate the allelopathic effect of Pachyrhizus erosus extract on Euphorbia heterophylla ...
Jaqueline de Araujo Barbosa +4 more
doaj +1 more source
Effects of irrigated cover crop cultivation period on common bean and soybean yield
Crop, Forage &Turfgrass Management, Volume 12, Issue 2, December 2026.Abstract Cover crop inclusion is essential for improving soil management in tropical no till systems; however, the optimal duration of irrigated off‐season cultivation remains uncertain. This 3‐year field study evaluated nine cover crop species or mixtures and four cultivation periods (60, 75, 90, and 105 days) on biomass production, soil chemical ...
Adriano S. Nascente +8 more
wiley +1 more source
Annals of Applied Biology, Volume 189, Issue 2, September 2026.Squash Silverleaf Disorder (SLD) is growing in its economic impact due to the invasive behaviour of the silverleaf whitefly (Bemisia tabaci MEAM1). In this review we summarize what is currently known about the whitefly‐squash interaction, how both the disease and the whitefly are being affected by climate change, and discuss current and novel ...
Nihal Oztolan‐Erol +4 more
wiley +1 more source