Results 71 to 80 of about 281 (131)

Caracterización de Typhlocybella maidica (Hemiptera: Cicadellidae) y descripción del daño producido en plantas de maíz y gramíneas asociadas en la Argentina Characterization of Typhlocybella maidica (Hemiptera: Cicadellidae) and description of the damage caused in maize plants and associated gramineous in Argentina

Revista de la Sociedad Entomológica Argentina, 2010
Los muestreos realizados en el área maicera centro de la Argentina durante las campañas 2006-2008, con el fin de identificar la composición específica de auquenorrincos presentes permitieron detectar altas densidades de "chicharritas", pertenecientes a ...
María E. Brentassi, María I. Catalano, Susana Paradell, Ana M. Marino de Remes L   +3 more
doaj  

Novel Trifluoromethylcoumarinyl Urea Derivatives: Synthesis, Characterization, Fluorescence, and Bioactivity

Molecules, 2018
A series of novel trifluoromethylcoumarinyl urea derivatives were designed, synthesized, and characterized by 1H-NMR, 13C-NMR, and HR-ESI-MS. The fluorescence spectra of the target compounds were recorded.
Lili Qiao, Shuanghong Hao
doaj   +1 more source

Use of solaria to predict weed density and floristic composition in no-till cropping systems Uso de solaria na predição da densidade de ervas daninhas e da composição florística no sistema de semeadura direta

Pesquisa Agropecuária Brasileira, 2006
The objective of this work was to evaluate the efficiency of a new method, developed for predicting density and floristic composition of weed communities in field crops.
Pablo Antonio Calviño, Juan José Eyherabide   +1 more
doaj   +1 more source

Controle de plantas daninhas em cana-de-açúcar (Saccharum officinarum) com hexazinone e suas misturas com diuron, em pré-emergência Weed control in sugar cane with hexazinone and its mixtures with diuron in pre-emergence

Planta Daninha, 1979
Foi realizado no ano agrícola 1976/77 um experimento em solo arenoso na Usina Utinga/LeãoAL, no qual foram testados em pré-emergência os tratamentos: hexazinone em 4 doses; hexazinone + diuron em 3 doses; diurom + 2,4 D amina e ametrina + 2,4 D amina ...
A.A. Clement, J. S. Lammel, J. A. Filho, J.C. Barbosa   +3 more
doaj  

Competição entre quatro herbicidas indicados para o controle de plantas daninhas em cana-de-açucar (Saccharum sp) Competition on four herbicides for controling weeds in sugarcane (Saccharum sp)

Planta Daninha, 1978
Com a finalidade de estudar a ação dos herbicidas oxadiazon, napropamide, methazole e A-3587 na cultura de cana -de-açúcar (Saccharum sp), foram conduzidos em 1971/72 dois ensaios de campo nos municípios paulistas de Capivari e Leme.
L.S.P. Cruz, L. Leiderman
doaj  

Latitudinal Variation in the Responses of Invasive Alternanthera philoxeroides and Native Digitaria sanguinalis to Soil Legacy Effects

Plants
Plant–soil interactions are increasingly recognized as a key driver of plant invasion, yet whether soil legacy effects associated with invaded habitats differentially influence invasive and native plants across broad geographic ranges remains poorly ...
Hao Wu, Qianwen Yang, Hanfei Yang, Leilei Qiao, Benqiang Rao   +4 more
doaj   +1 more source

Flora arvense asociada a un agroecosistema tipo conuco en la comunidad de Santa Rosa de Ceiba Mocha en el estado Guárico

Bioagro, 2014
Con la finalidad de contribuir al conocimiento integral de la vegetación asociada a los sistemas de producción, se realizó un estudio de la diversidad de arvenses dentro de un agroecosistema tipo conuco en la comunidad de Santa Rosa de Ceiba Mocha, del ...
Arnaldo Gámez, María De Gouveia, Winston Álvarez, Henry Pérez   +3 more
doaj  

Aplicação de misturas de diuron com MSMA, e com paraquat, no controle de plantas daninhas de folhas largas em cultura de algodão (Gossypium hirsutum L.) Mixture of diuron whit MSMA and with paraquat for broadleaved weeds control in cotton

Planta Daninha, 1978
Em ensaio de campo conduzido em 1975/76 procurou-se avaliar a ação de misturas de MSMA com diuron e de paraquat com diuron, aplicadas em pós-emergência, em jato dirigido, em duas épocas diferentes, no controle de algumas plantas daninhas de folhas largas
L. S. P. Cruz, L. Leiderman
doaj  

Allelopathic Potential of Newly Emerged Invasive Plant Cirsium vulgare (Asteraceae) in Yunnan Province of China

Plants
Cirsium vulgare (Asteraceae) is a newly emerged invasive species in Yunnan Province, China, and its phytotoxic potential has not yet been studied. This study was conducted to explore potential allelopathic effects of C.
Fengping Zheng, Che Zhan, Kexin Yang, Qiurui Li, Zhijie Wang, Gaofeng Xu, David Roy Clements, Bin Yao, Guimei Jin, Shaosong Yang, Fudou Zhang, Michael Denny Day, Shicai Shen   +12 more
doaj   +1 more source

Functional plant strategies mediate post-fire ash–precipitation effects on soil–vegetation feedbacks in a dry-valley forest ecosystem: implications for restoration

Trees, Forests and People
Wildfire fundamentally alters forest soil properties and vegetation dynamics through changes in ash deposition and post-fire precipitation, yet the coupled mechanisms governing soil–plant feedbacks remain unclear.
Honghu Wang, Huanhuan Qi, Panpan Wang, Jun Luo, Fachao Qin, Bin Zhang   +5 more
doaj   +1 more source