Results 51 to 60 of about 23,315 (165)

Commodity risk assessment of Petunia spp. and Calibrachoa spp. unrooted cuttings from Uganda

open access: yesEFSA Journal, Volume 24, Issue 1, January 2026.
Abstract The European Commission requested the EFSA Panel on Plant Health to evaluate the likelihood of pest freedom at entry in the EU, including both regulated and non‐regulated pests, potentially associated with unrooted cuttings of the genera Petunia and Calibrachoa produced under physical isolation in Uganda.
EFSA Panel on Plant Health (PLH)   +34 more
wiley   +1 more source

Decoding drought tolerance from a genomic approach in Castanea sativa Mill

open access: yesThe Plant Genome, Volume 18, Issue 4, December 2025.
Abstract Climate change, marked by prolonged periods of extreme summer drought coupled with heat, presents a significant challenge for chestnut forests. Genomic insight into drought tolerance in Castanea sativa is essential for enhancing the adaptation of this species to climate change.
A. Perez‐Rial   +4 more
wiley   +1 more source

ANÁLISE DA INFLUÊNCIA LUMINOSA NOS ASPECTOS ANATÔMICOS DE FOLHAS DE Theobroma speciosum WILLD EX SPRENG. (MALVACEAE)

open access: yesCiência Florestal, 2017
The anatomical knowledge of species of the Theobroma genus is important for the establishment and maintenance of germplasm collections, considering agronomic and phytopathological studies, and breeding programs. This study aimed to
Juliana de Freitas Encinas Dardengo   +4 more
doaj  

Functional Specialisation and Diversity Shape the Rhizosphere Microbiota of Cacao and Coffee in the Amazonas Region, Peru

open access: yesEnvironmental Microbiology Reports, Volume 17, Issue 6, December 2025.
The microbial species composition, abundance and functional profiles in the rhizospheric soils of cacao and coffee were evaluated. Our findings highlight the presence of predominant but functionally specialised taxa that play unique functional roles within the cacao and coffee rhizosphere ecosystems.
Jois V. Carrion   +4 more
wiley   +1 more source

Determinação de compostos de massa molecular alta em folhas de plantas da Amazônia

open access: yesQuímica Nova, 2003
The fractIons of dichloromethane extracts of leaves from andiroba (Carapa guianensis - Meliaceae), caapi (Banisteriopsis caapi - Malpighiaceae), cocoa (Theobroma cacao - Sterculiaceae), Brazil nut (Bertholletia excelsa - Lecytidaceae), cupuaçu (Theobroma
Siqueira Denilson Soares de   +6 more
doaj  

Effects of Land-Use Change on Under Storey Species Composition and Distribution in a Tropical Rainforest

open access: yesNotulae Scientia Biologicae, 2012
The forest land s conversion into tree crops plantations plays a major role in the loss of biodiversity. Therefore, understanding the impacts of land-use change on species diversity is very critical for ecosystem functioning and stability. This study was
Anthony Ifechukwude ODIWE   +2 more
doaj  

Extracts of Azadirachta indica, Tagetes erecta and Jatropha curcas resin control the attack of Carmenta foraseminis on Theobroma cacao fruits [PDF]

open access: yesRevista Brasileira de Fruticultura
: The aim of this work was to determine the effect of Azadirachta indica and Tagetes erecta leaf extract, as well as Jatropha curcas resin extract on the control of Carmenta foraseminis larvae in Theobroma cacao fruits.
Héctor Guerra-Arévalo   +5 more
doaj   +1 more source

Protocol for isolation of Moniliophthora roreri (Cif and Par) Evans et al. from cacao fruits cv. `National' in the Ecuadorian Amazonia

open access: yesBiotecnología Vegetal, 2014
Moniliophthora roreri is a pathogen of cocoa (Theobroma cacao L.) that causes high economic losses in Ecuador. This paper is intended to present a protocol for the isolation of the pathogen from cocoa fruits cv.
Karina Carrera-Sánchez   +2 more
doaj  

Identifying Cocoa Marketing System (Theobroma Cacao L.) at Utcubamba and Bagua Provinces in the Region of Amazonas-Peru

open access: yesStudia Ekonomiczne i Regionalne, 2018
Subject and purpose of work: The purpose of the study was to identify the marketing system of cocoa (Theobroma cacao L.) traditionally used by producers in the provinces of Utcubamba and Bagua in the Amazonas region in Peru.
Chávez Vicente M. Castañeda   +2 more
doaj   +1 more source

Caracterización molecular de un banco de germoplasma del género Theobroma mediante la técnica RAPD*

open access: yesRevista Colombiana de Biotecnología, 2004
Mediante la utilización de marcadores RAPD (Random Amplified Polymorphic DNA), se analizaron 145 materiales (128 de T. grandiflorum y 17 de T. bicolor) pertenecientes al banco de germoplasma ex situ del género Theobroma del Instituto Sinchi, localizado ...
Yovany Moreno   +4 more
doaj  

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