Results 1 to 10 of about 370 (165)

Biologia reprodutiva de etnovariedades de mandioca [PDF]

open access: yesScientia Agricola, 2001
O conhecimento da biologia reprodutiva da mandioca é essencial para o desenvolvimento de programas de melhoramento genético e compreensão do processo de domesticação.
Rainério Meireles da Silva   +3 more
exaly   +5 more sources

Floral Integration and Phenotypic Selection on Floral Traits of Ipomoea cavalcantei (Convolvulaceae), a Rare, Endemic, and Endangered Species to the Amazon Ironstone Outcrops [PDF]

open access: yesEcology and Evolution
Maintaining evolutionary potential is essential for species persistence, particularly for rare and endemic taxa that are more susceptible to habitat changes.
Adriano Valentin‐Silva   +6 more
doaj   +3 more sources

Observações sobre a biologia reprodutiva de Pistia stratiotes L. (Araceae) () [PDF]

open access: yesActa Amazonica, 1981
Resumo Estudos sobre a biologia reprodutiva e crescimento de Pistia stratiotes L. foram desenvolvidos com plantas crescendo em lagos de várzea, componentes do sistema de lagos denominados Janauacá e no rio Solimões.
Carolina Joana da Silva
exaly   +4 more sources

Morfologia floral e biologia reprodutiva de genótipos de aceroleira [PDF]

open access: yesScientia Agricola, 2001
Estudos sobre morfologia floral e biologia reprodutiva de uma cultura contribuem para o desenvolvimento de técnicas de castração e polinização. Com este propósito, estudaram-se a estrutura e a biologia floral em cinco genótipos de aceroleira (Malpighia ...
Dilermando Perecin   +2 more
exaly   +6 more sources

Ecological Niche Modeling Predicts Alarming Impacts of Global Climate Change on Economically Important Neotropical Trees. [PDF]

open access: yesEcol Evol
Widespread Amazonian Dipteryx species remained stable during both the LGM and future, but logging and deforestation pressures within Amazonian habitats pose significant threats to their survival. Dipteryx species depend on healthy forest ecosystems for their survival and conservation, and species with restricted distribution show sensitivity to global ...
Carvalho CS   +3 more
europepmc   +2 more sources

Development and Characterization of Microsatellite Markers for the Endangered Amazonian Tree Aniba rosaeodora (Lauraceae) [PDF]

open access: yesApplications in Plant Sciences, 2013
Premise of the study: Microsatellite loci were isolated and characterized for Brazilian rosewood (Aniba rosaeodora), an endangered neotropical hardwood tree, to investigate population and conservation genetics of this highly valuable nontimber forest ...
Rafael C. Angrizani   +2 more
doaj   +2 more sources

A method for extracting high-quality RNA from diverse plants for next-generation sequencing and gene expression analyses. [PDF]

open access: yesAppl Plant Sci, 2013
• Premise of the study: To study gene expression in plants, high‐quality RNA must be extracted in quantities sufficient for subsequent cDNA library construction. Field‐based collections are often limited in quantity and quality of tissue and are typically preserved in RNAlater.
Yockteng R   +5 more
europepmc   +2 more sources

Herbarium records provide reliable phenology estimates in the understudied tropics

open access: yesJournal of Ecology, Volume 111, Issue 2, Page 327-337, February 2023., 2023
Herbarium specimens are verified to be a vital resource for closing the gap in our phenological knowledge of tropical systems. Tropical plant reproductive phenology inferred from herbarium records are widely congruent with field observations, suggesting that they can and should be used to investigate phenological variation and their associated ...
Daniel S. Park   +7 more
wiley   +1 more source

Anatomia ecológica da folha de Eugenia glazioviana Kiaersk (Myrtaceae)

open access: yesRevista Árvore, 2011
Dos mecanismos com potencial valor adaptativo em resposta ao estresse hídrico merece destaque o apresentado por Eugenia glazioviana Kiaersk cuja perda de turgescência foliar e consequente curvatura do limbo da posição horizontal para a vertical, sem a ...
Natalia Pimentel Esposito-Polesi   +2 more
doaj   +1 more source

Biologia floral, fenologia reprodutiva e polinização de Xylopia aromatica (Lam.) Mart. (Annonaceae) em uma área de Cerrado no oeste da Bahia

open access: yesPaubrasilia, 2019
A família Annonaceae é comum no Cerrado do Oeste da Bahia, mas os estudos sobre a sua biologia floral, reprodutiva e fenológica na região, bem como dados sobre seus polinizadores, são raros.
Daniele dos Santos Aragão   +2 more
doaj   +1 more source

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