Results 41 to 50 of about 846 (175)

Effect of different herbicides on Bidens pilosa and Euphorbia heterophylla biotypes resistant to ALS inhibitors

open access: yesBioscience Journal, 2022
Select herbicides with different mechanism of action is a satisfactory option for resistant weed control. Then, the present work aimed to study the efficiency of different herbicides and their mixtures on Bidens pilosa (blackjack) and Euphorbia ...
Maria Renata Rocha Pereira   +2 more
doaj   +1 more source

Tolerance to Low Temperature of Wild, Semi-cultivated, and Cultivated Poinsettia Genotypes [PDF]

open access: yesHortScience, 2004
Commercial red cultivars (Freedom and Subjibi), semicultivated (Xo-chimilco and Chapingo) and a wild genotype (Puebla) were stored at 2, 7 °C [96% relative humidity (RH)], and 18 °C (50% RH) for 24 and 48 hours. Variables considered were: CO 2 and ethylene production, color, chlorophyll ...
Erik Navarro-López   +4 more
openaire   +1 more source

Phytotoxic effects of metabolites from Alternaria euphorbiicola against its host plant Euphorbia heterophylla

open access: yesQuímica 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

Resposta de biótipos de Euphorbia heterophylla a doses de glyphosate Response of Euphorbia heterophylla biotypes to glyphosate rates

open access: yesPlanta 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]

open access: yesPlanta 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

Compost of garbage and tree pruning used as substrates for production of irrigated wild poinsettia seedling [PDF]

open access: yesAfrican Journal of Agricultural Research, 2015
The high nutrient content in organic composted waste is an alternative source of fertilizer for use in agriculture and for re-establishment of native forests. This work had as an objective is aimed to evaluate the growth of Pterogyne nitens (wild poinsettia) seedlings, a rainforest native species, on substrates containing composts of organic garbage ...
Barofaldi Ariguchi Barbara   +4 more
openaire   +1 more source

Weed Occurrence in Sugarcane as Function of Variety and Ground Straw Management1 [PDF]

open access: yesPlanta 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

Selection of rhizobacteria for pre-emergence control of wild poinsettia, horseweed and sourgrass

open access: yesCientífica, 2019
This study aimed to select rhizobacteria isolates for pre-emergence control of three glyphosate-resistant species: horseweed (Conyza sumatrensis), sourgrass (Digitaria insularis), and wild poinsettia (Euphorbia heterophylla). Nineteen strains of Bacillus spp. and thirty-four strains of Pseudomonas spp. were isolated from soil samples from the states of
Cleiton Burnier de Oliveira   +3 more
openaire   +2 more sources

Allelopathy of aqueous Pachyrhizus erosus L. extracts on Euphorbia heterophylla and Bidens pilosa

open access: yesPesquisa 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

Evaluation of wild poinsettia biotypes with suspicion of resistant to ALS and Protox inhibitors herbicides [PDF]

open access: yes, 2014
Objetivou-se com o presente trabalho avaliar a confirmação da ocorrência de resistência de biótipos de leiteiro, oriundos de Rondônia e do Rio Grandes do Sul a herbicidas com diferentes mecanismos de ação, bem como determinar a dose dos ...
Kujawiski, Renato   +8 more
core   +1 more source

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