Results 111 to 120 of about 484,853 (304)

Sheepskin Effects in the Returns to Education by Ethnic Group: Evidence from Northeastern Brazil [PDF]

open access: yes
This paper examines the relative magnitudes of "sheepskin effects" in the returns to education for the three main ethnic groups in the Metropolitan Region of Salvador (MRS), Bahia state, in Northeastern Brazil, and ascertains whether their pattern is ...
Béatrice D'HOMBRES   +2 more
core  

Development of EST derived-SSRs of Theobroma grandiflorum for molecular breeding : S04P05 [PDF]

open access: yes, 2013
Simple sequence repeats (SSRs) markers are widely used in breeding programs, and SSRs associated to expressed sequence tags (ESTs) could be quite efficient in the selection of genotypes of interest.
Alves, Rafael Moyses   +7 more
core  

Agroforestry and enhanced rock weathering: A dual strategy for sustainable cacao

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Cacao production is both economically vital and environmentally intensive, presenting a major sustainability challenge as a crop largely cultivated by smallholder farmers in climate‐vulnerable regions. This review synthesises evidence that integrating agroforestry with enhanced rock weathering (EW) may significantly reduce emissions from cacao ...
Isabella L. Steeley   +4 more
wiley   +1 more source

Identification of molecular markers associated to new sources of resistance to the root-knot nematode in cotton : S02T04 [PDF]

open access: yes, 2013
The root-knot nematode (RKN) Meloidogyne incognita is a major constraint in cotton (Gossypium hirsutum L.) production in numerous countries. Control of RKN has been hampered by the lack of options for crop rotation and even more, by the lack of high ...
Barroso, Paulo Augusto Vianna   +4 more
core  

Balancing tracks and trees: Assessing railroad impact on Brazilian biodiversity

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The Brazilian West–East Integration Railway (FIOL) aims to boost the national economy by improving commodity transport; however, it crosses three of Brazil's most biodiverse and fragile regions: the Caatinga, Cerrado and Atlantic Forest. Using digitised plant records and land‐use analyses, our study reveals significant vegetation loss within the ...
Ana Luiza Silva Rocha   +3 more
wiley   +1 more source

RNAseq analysis of different Hevea genus inoculated by Microcyclus ulei : S01P09 [PDF]

open access: yes, 2013
The rubber tree, Hevea is native from the Brazilian Amazon region and it is responsible for almost all natural rubber produced in the world, a strategic raw material for a variety of products.
De Vasconcelos, A.T.R.   +5 more
core  

Open‐land‐derived agroforestry and effects of abandonment of management of the main crop on ecosystem services and woody plant diversity

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Tropical forests are rapidly declining. One promising strategy to reverse the loss of tropical forest is the establishment of agroforestry on open land. We combined interviews with biodiversity surveys to learn general lessons from success and nonsuccess stories of the establishment of open‐land‐derived coffee agroforests in one of the world's ...
Lucas M. Fonzaghi   +3 more
wiley   +1 more source

Open letter: Brazil at a crossroads—Protecting peatlands is essential for post‐COP30 climate leadership

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
This Open Letter highlights peatlands as critical yet overlooked ecosystems in Brazil's climate and biodiversity policies. By translating scientific evidence into clear, actionable priorities for policymakers, it supports more accurate climate reporting, effective mitigation strategies, and improved land‐use governance.
Suelma Ribeiro Silva   +52 more
wiley   +1 more source

Ice in the Tropics: the Export of ‘Crystal Blocks of Yankee Coldness’ to India and Brazil [PDF]

open access: yes, 2011
The Boston natural ice trade thrived during 1830-70 based upon Frederic Tudor’s idea of combining two useless products – natural winter ice in New England ponds and sawdust from Maine’s lumber mills. Tudor ice was exported extensively to the tropics from
Herold, Marc W.
core   +2 more sources

Control failure risk, resistance and enzymatic activity of neurotoxic insecticides in Brazilian populations of Leucoptera coffeella (Lepidoptera: Lyonetiidae)

open access: yesPest Management Science, EarlyView.
Bioassays of 36 Leucoptera coffeella populations revealed resistance to neurotoxic insecticides, control failures of ≤62.9% and enzyme activity variation, with particularly high GST and low AChE levels. Abstract Background Leucoptera coffeella is a key pest of coffee crops in Brazil, causing significant damage by mining coffee leaves.
Daianna P. Costa   +6 more
wiley   +1 more source

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