Results 91 to 100 of about 7,897 (203)

Toxicidade aguda de herbicidas a tilápia (Oreochromis niloticus) Acute toxicity to herbicides to Oreochromis niloticus

open access: yesPlanta Daninha, 2009
Esta pesquisa teve como objetivo avaliar a sensibilidade de alevinos de Oreochromis niloticus a diversos herbicidas. Para isso, foram realizados dois ensaios, sendo, no primeiro, avaliadas concentrações de atrazina (0; 2,5; 5; 10; e 20 mg L-1), visando a
R.G. Botelho   +4 more
doaj   +1 more source

AUXIN PULSE IN THE INDUCTION OF SOMATIC EMBRYOS OF Eucalyptus

open access: yesRevista Árvore
The objective of this study was to evaluate the effect of auxin pulse intervals on the induction of somatic embryos of Eucalyptus grandis x E. urophylla and to describe the embryogenic behavior of callus under the effect of auxinic stress.
Luciana Coelho de Moura   +5 more
doaj   +1 more source

Eficácia de herbicidas no controle de amarelinho (Tecoma stans) em pastagem Herbicides efficiency on trumpetflower (Tecoma stans)

open access: yesPlanta Daninha, 1997
Amarelinho (Tecoma stans) é um arbusto exótico que foi observado como espécie invasora de past os degradados do Estado do Paraná-Brasil. A população dessa espécie forma um dossel denso sob o qual as forrageiras não se desenvolvem.
Telma Passini, Walter Miguel Kranz
doaj   +1 more source

Cuantificación de taxol y baccatin III en callos de Taxus baccata por cromatografía líquida de alta eficiencia (HPLC) [PDF]

open access: yes, 2006
Callos de Taxus baccata fueron inducidos a partir de segmentos de agujas y tallos en el medio de cultivo TM5 suplementado con diferentes concentraciones de picloram en combinación con ácido giberélico (GA3) y kinetina.
Correa N., Yaned Milena   +2 more
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Induction and Plant Regeneration of Callus in Dendrobium [PDF]

open access: yes, 2000
The present study examines the effects of some selected chemicals and physical treatments on protocorm-like body (plbs) of orchid hybrid, Dendrobium Kasem White .
Cossall, Cynthia Psyquay
core  

Somatic embryogenesis from leaf tissues of macaw palm [Acrocomia aculeata (Jacq.) Lodd. ex Mart.] [PDF]

open access: yesAnais da Academia Brasileira de Ciências
A somatic embryogenesis protocol was developed from the immature leaves of adult plants of the macaw palm. Leaf explants from different regions of the palm heart were used for callus initiation in a modified Y3 medium, supplemented with 2,4-D or Picloram
FILIPE S. MEIRA   +3 more
doaj   +2 more sources

The TIR1/AFB Family in Solanum melongena: Genome-Wide Identification and Expression Profiling under Stresses and Picloram Treatment

open access: yesAgronomy
TIR1/AFB proteins are a class of auxin receptors with key roles in plant development and biotic and abiotic stress responses; several have been identified as targets of the auxin-mimicking herbicide picloram.
Wenchao Du   +10 more
doaj   +1 more source

Callus induction and regeneration efficiency of spring barley cultivars registered in the Czech Republic

open access: yesPlant, Soil and Environment, 2004
Immature zygotic embryos are frequently used for induction of cell cultures in vitro and for genetic transformation. The effect of three synthetic auxins: 2,4-dichlorophenoxyacetic acid (2,4-D), 3,6-dichloro-2-methoxybenzoic acid (dicamba) and 4-amino-3 ...
V. Šerhantová   +2 more
doaj   +1 more source

Controle de espécies indesejáveis e preservação de leguminosas de campo nativo com aplicação localizada de herbicidas. [PDF]

open access: yes, 2015
Resumo: Para avaliar o efeito da aplicação localizada de herbicidas por contato, em Desmodium incanum, foi conduzido este estudo pelo período de 353 dias.
BARZOTTO, F.   +5 more
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Callus formation, somatic embryogenesis and development of transformation protocol by practicle bombardment in plantain banana [PDF]

open access: yes, 2001
The plantain bananas are among the most valued crop plants in the tropical world. However, the commercially attainable yields are very low compared to dessert bananas.
Deswina, Puspita
core  

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