Results 61 to 70 of about 3,139 (188)

Rubiaceae de uma área de transição entre Carnaubal e Caatinga s.s., estado do Ceará, Brasil

open access: yesPaubrasilia
  O presente trabalho objetivou realizar o levantamento taxonômico dos representantes de Rubiaceae para a Fazenda Experimental da Universidade Estadual Vale do Acaraú (FAEX-UVA), em Massapê, Ceará.
Francisco Alvaro Almeida Nepomuceno   +2 more
doaj   +1 more source

Ecological Diversity of Summer Maize Weed Species in the Western Mid‐Hills of Nepal

open access: yesInternational Journal of Agronomy, Volume 2026, Issue 1, 2026.
Maize (Zea mays L.) cultivation in the mid‐hills of Nepal is vital for food security but faces significant yield losses due to weed competition. The two‐year (2023–2024) phytosociological study on summer maize was conducted to assess weed diversity and dynamics in randomly selected 40 farmers’ fields of Puranchaur, Dhikidada, Gharmi, and Lamachaur at ...
Dinesh Marasini   +4 more
wiley   +1 more source

The Rauvolfia tetraphylla genome suggests multiple distinct biosynthetic routes for yohimbane monoterpene indole alkaloids

open access: yesCommunications Biology, 2023
Monoterpene indole alkaloids (MIAs) are a structurally diverse family of specialized metabolites mainly produced in Gentianales to cope with environmental challenges.
Emily Amor Stander   +22 more
doaj   +1 more source

Anciens villages de la zone périurbaine de Kisantu, villages de Kinduala et Kingunda, Province du Bas Congo, RDC Caractérisation, intérêts et enjeux de ces espaces boisés conservés : Projet MAKALA [PDF]

open access: yes, 2012
L'enjeu du projet MAKALA est de répondre à l'augmentation continue des besoins et aux risques de gestion non durable des ressources forestières en améliorant la durabilité de l'approvisionnement en ressource bois énergie en RDC, et au-delà, en Afrique ...
Lavialle, Jeanne, Rerolle, Julia
core  

Distribution, structural and ecological aspects of the unusual leaf nectaries of Calolisianthus species (Gentianaceae) [PDF]

open access: yes, 2011
Nectaries in leaves of Gentianaceae have been poorly studied. The present study aims to describe the distribution, anatomy, and ecological aspects of extrafloral nectaries (EFNs) of three Calolisianthusspecies and in particular the ultrastructure of EFNs
Azevedo, Aristéa Alves   +4 more
core   +2 more sources

Espécies arbóreo-arbustivas da família Rubiaceae Juss. na bacia do rio Tibagi, PR, Brasil

open access: yesHoehnea
RESUMO Rubiaceae, a quarta maior família de angiospermas em número de espécies no mundo, é reconhecida pelas folhas opostas, estípulas interpeciolares, corola gamopétala e ovário ínfero.
Miguel Ferreira Junior   +1 more
doaj   +1 more source

Adaptations of succulent plants for survival in desert ecosystems [PDF]

open access: yes, 2019
Cilj ovog seminara bio je nabrojati prilagodbe sukulentnih biljaka koje su im nužne za preživljavanje u pustinjskim ekosustavima. Sukulenti su biljke koje imaju posebne morfološke i ekofiziološke prilagodbe za pojačano primanje i pohranu vode.
Penzar, Marta
core   +2 more sources

A consensus classification for the order Gentianales with additional details on the suborder Apocynineae [PDF]

open access: yesThe Botanical Review, 1994
The Gentianales as circumscribed by Benson, Cronquist, Dahlgren, Goldberg, Hey wood et al., Melchior, Stebbins, Takhtajan, and Thorne is investigated. From these a consensus classification (not in the cladistic sense) or classificatory model for the order is proposed.
A. Nicholas, H. Baijnath
openaire   +1 more source

Las Gentianaceae: botánica, fitoquímica y actividad biológica [PDF]

open access: yes, 2010
Este artículo es una revisión actualizada sobre los metabolitos secundarios de la familia de las Gentianaceae. Estas plantas se emplean en la medicina tradicional de numerosos países y presentan actividad biológica interesante.
Vidari, Giovanni, VitaFinzi, Paola
core  

The complete chloroplast genome of Morinda citrifolia (noni)

open access: yesMitochondrial DNA. Part B. Resources, 2020
Morinda citrifolia L. (Rubiaceae), commonly called noni, is a medicinal plant that is often used as botanical dietary supplement. This study is the first to report and characterize the complete chloroplast genome of M. citrifolia.
Ying-Feng Niu, Jin Liu
doaj   +1 more source

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