Results 11 to 20 of about 945 (150)

Morfologia genética em Schleiden e Grant: a célula vegetal e o animal elementar

open access: yesRevista de Filosofia, 2013
No presente estudo, discuto e sintetizo o conceito de célula vegetal de M. J. Schleiden e o conceito de animal elementar que elaboro a partir da ideia de “animal abstrato” sugerida por R. E. Grant. A elaboração e a interpretação que conduz a essa síntese
Maurício de Carvalho Ramos
doaj   +4 more sources

Regulador vegetal e densidades de semeadura na cultura do arroz de terras altas

open access: yesAgrarian, 2012
O acamamento das plantas de arroz no momento da colheita acarreta perdas significativas na produtividade, além disso, os manejos de água em condições de alta tecnologia agravam mais o problema. O uso de reguladores vegetais é uma das alternativas para reduzir o acamamento.
Juliana Souza Castilho   +4 more
core   +5 more sources

El obtentor vegetal y el productor

open access: yesRevista de Derecho, 2020
Hay varios factores que han generado que en nuestro país se le dé cada vez más importancia a las creaciones intelectuales y en particular a las creaciones intelectuales derivadas de la biotecnología.
Elisa María Martínez Maruri
doaj   +4 more sources

USO DE REGULADOR DE CRESCIMENTO EM CULTIVARES DE FEIJÃO DE INVERNO PLANT GROWTH STIMULANT APPLICATION ON WINTER COMMON BEAN CULTIVARS

open access: yesPesquisa Agropecuária Tropical, 2011
<p style="text-align: justify !important;"><span style="color: #000000;"><span style="font-family: Verdana, sans-serif;"><span style="font-size: x-small;"><span>A aplicação de reguladores vegetais, com a finalidade de ...
Salatiér Buzetti   +8 more
doaj   +2 more sources

Evaluating the conservation impact of Antarctica's protected areas

open access: yesConservation Biology, Volume 37, Issue 3, June 2023., 2023
Abstract Antarctic specially protected areas (ASPAs) are a key regulatory mechanism for protecting Antarctic environmental values. Previous evaluations of the effectiveness of the ASPA system focused on its representativeness and design characteristics, presenting a compelling rationale for its systematic revision.
Joanna L. Burrows   +2 more
wiley   +1 more source

Biosafety legislation and the regulatory status of the products of precision breeding in the Latin America and the Caribbean region

open access: yesPLANTS, PEOPLE, PLANET, Volume 4, Issue 3, Page 214-231, May 2022., 2022
Precision breeding represents a new challenge for biosafety regulators when applying the legal definition of living modified organisms (LMOs) in accordance with their domestic biosafety legislation. Globally, there is uncertainty whether the products of precision breeding will be considered as LMOs and subject to the corresponding regulatory oversight.
André Rosado, Dennis Eriksson
wiley   +1 more source

Distilling agro‐extractivism: Agave and tequila production in Mexico

open access: yesJournal of Agrarian Change, Volume 21, Issue 2, Page 219-241, April 2021., 2021
Abstract This article seeks to challenge the notion that the concept of agro‐extractivism be restricted to crops destined for export with little or no processing. Based on a study of agave and tequila production in Mexico, it argues that the domestic processing of biomass does not change nor necessarily compensate for the negative social and ...
Darcy Tetreault   +2 more
wiley   +1 more source

Relative effects of climate and litter traits on decomposition change with time, climate and trait variability

open access: yesJournal of Ecology, Volume 109, Issue 1, Page 447-458, January 2021., 2021
The relative effects of litter traits and climate on decomposition depend on the ranges in climate and litter traits considered and change with time. Our study emphasizes the critical role of representative ranges in climate and functional trait values for understanding the drivers of litter decomposition and for improving predictions of climate‐change
Rafaella Canessa   +9 more
wiley   +1 more source

Fornecimento de nitrogênio associado a aplicação de etil-trinexapac em arroz de terras altas irrigado por aspersão

open access: yesSemina: Ciências Agrárias, 2019
O acamamento das plantas de arroz aumenta sensivelmente as perdas dessa cultura, que é ocasionado pelo fornecimento de água e fertilizantes, principalmente os nitrogenados, manejados de forma inadequada.
Igor Balbi Guirão Peron   +4 more
doaj   +1 more source

ENRAIZAMENTO DE ESTACAS CAULINARES DE Piper crassinervium Kunth SOB DIFERENTES CONCENTRAÇÕES DE ÁCIDO INDOLBUTÍRICO

open access: yesRevista de Agricultura Neotropical, 2019
O objetivo do presente trabalho foi avaliar o efeito de diferentes concentrações do regulador vegetal ácido indolbutírico (AIB) no enraizamento e brotações de estacas caulinares de Piper crassinervium.
Erik Nunes Gomes, Diones Krinski
doaj   +1 more source

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