Results 71 to 80 of about 3,654 (216)

Behavior of Euphorbia Heterophylla Seed Bank. [PDF]

, 1983
Short term burial of freshly harvested seed and soil disturbances in agricultural populations of wild poinsettia (Euphorbia heterophylla L.) indicated a very low carry over of seeds into the second season after dissemination.
Langston, Vernon B
core   +2 more sources

A Horizontally Transferred Plant Fatty Acid Desaturase Gene Steers Whitefly Reproduction

Advanced Science, Volume 11, Issue 10, March 13, 2024.
The study reveals that the whitefly Bemisia tabaci has acquired a family of plant genes, BtFAD2, that provide it with the unique ability to synthesize PUFAs by itself, enhancing its fecundity. The results imply a divergent evolutionary scenario by which this extremely phytophagous insect has acquired plant genes for key physiological functions and ...
Cheng Gong, Zhaojiang Guo, Yuan Hu, Zezhong Yang, Jixing Xia, Xin Yang, Wen Xie, Shaoli Wang, Qingjun Wu, Wenfeng Ye, Xuguo Zhou, Ted C. J. Turlings, Youjun Zhang   +12 more
wiley   +1 more source

Morpho-physiological responses of potato cultivars under weed competition [PDF]

Among the factors that affect potato productivity, the interference caused by weeds stands out as they may compete with the crop, release allelopathic substances to soil and host insects and diseases.
Bagnara , Maico André Michelon, Concenco, Germani, Franceschetti, Milena Barretta, Galon, Leandro, Melo, Thaís Stradioto, Menegatti, André Dalpont, Perin, Gismael Francisco, Toso, Janaíne Oliveira   +7 more
core   +2 more sources

Commodity risk assessment of Ligustrum ovalifolium and Ligustrum vulgare plants from the UK

EFSA Journal, Volume 22, Issue 3, March 2024.
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by plants of the evergreen Ligustrum ovalifolium ...
EFSA Panel on Plant Health (PLH), Claude Bragard, Paula Baptista, Elisavet Chatzivassiliou, Francesco Di Serio, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A. Navas‐Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Emilio Stefani, Hans‐Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Andrea Battisti, Hugo Mas, Daniel Rigling, Massimo Faccoli, Alžběta Mikulová, Olaf Mosbach‐Schulz, Fabio Stergulc, Franz Streissl, Paolo Gonthier   +28 more
wiley   +1 more source

Eficácia de herbicidas em diferentes quantidades de palha de cana-de-açúcar no controle de Euphorbia heterophylla Efficacy of herbicides in different amounts of sugar cane straw on Euphorbia heterophylla control

Planta Daninha, 2007
Este trabalho foi realizado com o objetivo de estudar o efeito de diferentes quantidades de palha de cana-de-açúcar, colhida sem queima prévia do canavial, sobre a eficácia de alguns herbicidas recomendados para esta cultura.
P.A. Monquero, L.R. Amaral, A.C. Silva, P.V. Silva, D.P. Binha   +4 more
doaj   +1 more source

Effect of light quality on Poinsettia (Euphorbia pulcherrima Wild.) morphology

, 2010
Use of chemical growth regulators is the main tool used for making dwarf and compact plant in pot plant industry, although there are ever increasing concerns about the negative consequences of such chemicals to the environment. Therefore, the aim of this study was to investigate the light quality as an alternative tool to reduce stem elongation in pot ...
openaire   +2 more sources

Commodity risk assessment of Petunia spp. and Calibrachoa spp. unrooted cuttings from Guatemala

EFSA Journal, Volume 22, Issue 1, January 2024.
Abstract The European Commission requested the EFSA Panel on Plant Health to evaluate the probability of entry of pests (likelihood of pest freedom at entry), including both, regulated and non‐regulated pests, associated with unrooted cuttings of the genera Petunia and Calibrachoa produced under physical isolation in Guatemala.
EFSA Panel on Plant Health (PLH), Claude Bragard, Paula Baptista, Elisavet Chatzivassiliou, Francesco Di Serio, Paolo Gonthier, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A. Navas‐Cortes, Stephen Parnell, Philippe Lucien Reignault, Emilio Stefani, Hans‐Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Olaf Mosbach Schulz, Paraskevi Kariampa, Raghavendra Reddy Manda, Alemu Selam, Antigoni Akrivou, Spyridon Antonatos, Despoina Beris, Jane Debode, Christos Kritikos, Maria Kormpi, Christophe Lacomme, Charles Manceau, Dimitrios Papachristos, Chrysavgi Reppa, Ciro Gardi, Roel Potting   +35 more
wiley   +1 more source

Controle de Euphorbia heterophylla e Ipomoea grandifolia com a utilização de glyphosate isolado ou em associação com latifolicidas Control of Euphorbia heterophylla and Ipomoea grandifolia using glyphosate isolated or in association with broadleaf herbicides

Planta Daninha, 2010
No controle de plantas daninhas em pós-emergência na cultura da soja RR®; misturas de latifolicidas com o glyphosate têm sido utilizadas principalmente para melhorar a eficácia sobre espécies de difícil controle, a fim de se obter controle residual ou ...
A.C. Ramires, J. Constantin, R.S. Oliveira Jr., N. Guerra, D.G. Alonso, D.F. Biffe   +5 more
doaj   +1 more source

Gamale Kham phonology revisited, with Devanagari-based orthography and lexicon [PDF]

, 2016
The purpose of this article is twofold. Firstly, it is a revision of certain aspects of the phonological analysis of Gamāle Khām by Wilde (2011), a lesser known Central Himalayish language spoken in midwestern Nepal.
Wilde, Christopher P.
core  

A field survey of crop management practices and distribution of ALS resistant Euphorbia heterophylla in two states in southern Brazil Avaliação das práticas de manejo das lavouras e da distribuição geográfica de Euphorbia heterophylla resistente aos inibidores de als em dois estados do sul do Brasil

Planta Daninha, 2004
Herbicide resistance was reported in Brazil almost ten years ago. One of the main weeds with herbicide resistance is wild poinsettia (Euphorbia heterophylla). This work evaluates the distribution of ALS-resistant E. heterophylla in two states in southern
R.A. Vidal, L.M. Winkler, G.C. Hernandes, N.G. Fleck, A. Merotto Jr., M.M. Trezzi   +5 more
doaj   +1 more source