Results 21 to 30 of about 220 (132)

Parâmetros para a produção e conversão de sementes sintéticas de orquídeas e avaliação de utilização na conservação in vitro.

open access: yesOrnamental Horticulture, 2007
A aplicação de técnicas de cultura de tecidos vegetais para a propagação de orquídeas têm sido considerada de grande importância para a expansão comercial destas plantas, o que se deve, entre outros fatores, a obtenção de clones com alto padrão genético ...
Jonny Everson Scherwinski Pereira   +4 more
doaj   +1 more source

Regulación de los Bancos de Germoplasma a nivel internacional, europeo y nacional. Acceso a recursos filogenéticos ex situ

open access: yesRevista Justicia y Derecho, 2018
Los bancos de germoplasma o bancos de semillas son importantes repositorios de material genético y permiten variados fines para la conservación de la biodiversidad ex situ.
Hellen Teresita Pacheco Cornejo
doaj   +1 more source

Contrasting CO2‐response strategies in Pardina lentils: Yield maximization in a commercial cultivar and seed composition adjustment in a landrace

open access: yesJournal of the Science of Food and Agriculture, Volume 106, Issue 9, Page 5422-5436, July 2026.
Abstract BACKGROUND Assessing crop's responses to elevated carbon dioxide (eCO2) is crucial for global food security. This study examines the impact of eCO2 (700 μmol mol−1) on the cultivars of lentil (Lens culinaris), local Pardina Verde Rayada lentil (PVRL), and commercial Pardina lentil (PL) in terms of the productivity and nutritional composition ...
Mohammad Abdullah   +4 more
wiley   +1 more source

Genetic diversity in common bean accessions evaluated by means of morpho-agronomical and RAPD data Diversidade genética em acessos de feijoeiro avaliada por meio de dados morfo-agronômicos e de RAPD

open access: yesScientia Agricola, 2007
Germplasm banks store genotype samples, improved varieties, landraces and wild species, all generically denominated accessions. The importance of characterizing germplasm banks is based on the identification and knowledge of relevant traits for genetic ...
Alisson Fernando Chiorato   +5 more
doaj   +1 more source

Morfología, calidad de semillas y plántulas de Yucca endlichiana e implicaciones en su conservación

open access: yesEcosistemas y Recursos Agropecuarios, 2022
La Yucca endlichiana Trel. es una especie microendémica en el estado de Coahuila y en estatus de protección especial. El objetivo fue conocer la variabilidad morfológica, calidad de semilla y de plántula de Y.
Ana Bertha Meza-Cota   +5 more
doaj   +1 more source

Conservation Implications for the Iberian Narrow Endemic Androsace cantabrica (Primulaceae) Using Population Genomics With Target Capture Sequence Data

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
This study uses Angiosperms353 target capture sequencing to resolve the taxonomic status and conservation needs of Androsace cantabrica, a rare alpine plant endemic to northern Spain. Phylogenomic analyses confirm its distinctiveness from related species, and population genomic data reveal shallow genetic structure and moderate diversity, supporting ...
Ke (Jungle) Liang   +5 more
wiley   +1 more source

Genome‐Wide Diversity in Lowland and Highland Maize Landraces From Southern South America: Population Genetics Insights to Assist Conservation

open access: yesEvolutionary Applications, Volume 17, Issue 12, December 2024.
ABSTRACT Maize (Zea mays ssp. mays L.) landraces are traditional American crops with high genetic variability that conform a source of original alleles for conventional maize breeding. Northern Argentina, one the southernmost regions of traditional maize cultivation in the Americas, harbours around 57 races traditionally grown in two regions with ...
Pia Guadalupe Dominguez   +8 more
wiley   +1 more source

CONSERVAÇÃO DE SEMENTES DE COPAIFERA LANGSDORFFII DESF. LEGUMINOSAE

open access: yesRevista do Instituto Florestal, 1992
A classificação da espécie em ortodoxa, recalcitrante ou intermediária é de extrema importância para a definição da estratégia de conservação das sementes. Com este propósito, sementes de Copaifera langsdorffii Oesf.
Mirian T.S. Eira   +4 more
doaj   +1 more source

Wild relatives of potato (Solanum L. sec. Petota) poorly sampled and unprotected in Colombia

open access: yesCrop Science, Volume 64, Issue 1, Page 225-243, January/February 2024.
Abstract Wild potato relatives (Solanum L. sec. Petota) play a vital role in crop improvement, understanding crop evolution, and conserving potato diversity. However, these invaluable resources are often neglected and underutilized and are susceptible to threats such as climate change, urbanization, and agricultural expansion. Little is known about the
Carlos E. González‐Orozco   +7 more
wiley   +1 more source

A biopolítica e seus instrumentos de regulamentação: instituições regionais e suas estratégias de planejamento científico-político

open access: yesRedes, 2019
O debate sobre o direito ao acesso dos povos agricultores às sementes conservadas em instituições públicas no Brasil ganhou visibilidade por meio das políticas públicas e instrumentos jurídicos nacionais. No entanto, diante do cenário de restrições que o
José Carlos Gomes Dos Anjos   +2 more
doaj   +1 more source

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