Results 51 to 60 of about 451 (137)

Wild or Introduced? Investigating the Genetic Landscape of Cacao Populations in South America

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
Cacao populations span a continuum from wild to domesticated forms, shaped by complex patterns of human influence and selection. Using RAD‐sequencing, we show that native Upper Amazonian populations harbor the highest genetic diversity, while the Guiana group likely represents an isolated wild lineage and Amelonado shows clear signals of artificial ...
Matheus Colli‐Silva   +3 more
wiley   +1 more source

NEW FAMILY FARMERS IN BAHIA, BRAZIL: ANALYSIS OF THE KEY FACTORS INFLUENCING CROP CHOICE [PDF]

open access: yes
Family farming plays a pivotal role in shaping rural livelihoods and landscapes. Understanding the dynamics behind crop selection by family farmers reveals critical intersections between economic priorities, environmental sustainability, and food ...
Fernandes, João   +5 more
core   +2 more sources

First Report of ‘Candidatus Phytoplasma trifolii’ Associated With Leaf Yellowing Disease of Aegle marmelos in India

open access: yes
New Disease Reports, Volume 52, Issue 2, October/December 2025.
S. Gupta   +3 more
wiley   +1 more source

Biological Flora of Britain and Ireland: Cytisus scoparius*

open access: yesJournal of Ecology, Volume 113, Issue 7, Page 1877-1933, July 2025.
Broom is an attractive and common native plant across Britain, Ireland and most of Europe, and yet it is considered a harmful and invasive weed around the rest of the world. This is aided by broom thriving on poor dry soils, helped by using green stems for photosynthesis and having root nodules to fix nitrogen.
Peter A. Thomas   +9 more
wiley   +1 more source

A witches' broom phytoplasma effector induces stunting by stabilizing a bHLH transcription factor in Ziziphus jujuba plants

open access: yesNew Phytologist, Volume 247, Issue 1, Page 249-264, July 2025.
Summary Phytoplasmas are specialized phloem‐limited bacteria that cause diseases on various crops, resulting in significant agricultural losses. This research focuses on the jujube witches' broom (JWB) phytoplasma and investigates the host‐manipulating activity of the effector SJP39.
Shuang Yang   +9 more
wiley   +1 more source

Potato Diseases in South Dakota [PDF]

open access: yes, 1962
This pamphlet describes the common diseases of potato which occur in South Dakota and suggests measures for their control. The information is primarily intended as a guide in recognizing the various diseases.
Fisher, K.D.
core   +1 more source

Caracterização da enzima Oxidase Alternativa do fungo Moniliophthora perniciosa com o auxilio das ferramentas de bioinformática / Characterization of the enzyme Oxidase Alternative of the fungus Moniliophthora perniciosa with the aid of bioinformatics tools [PDF]

open access: yes, 2020
Moniliophthora perniciosa (Mp) é um fungo basidiomiceto, fitopatogênico, causador da doença vassoura de bruxa no cacau (Theobroma cacao L.), apresenta duas fases no ciclo de vida: a tipo biotrófica (nos tecidos vivos do hospedeiro), e fase saprofítica ...
Costa, Eduardo Almeida   +3 more
core   +1 more source

Manejo de la escoba de bruja (Moniliophthora Perniciosa) en el Cultivo de Cacao CCN-51 (Theobroma cacao L.) en la Hacienda” San José zona de Babahoyo [PDF]

open access: yes, 2019
The cultivation of cocoa is a tropical plant that is grown for its almond-shaped seeds, which are used to make chocolate, also called cocoa tree or cocoa tree.
Espinoza Rodríguez, Dennis Ariel
core  

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