Results 21 to 30 of about 24,166 (303)

A population genomics appraisal suggests independent dispersals for bitter and sweet manioc in Brazilian Amazonia

open access: yesEvolutionary Applications, 2020
Amazonia is a major world centre of plant domestication, but the genetics of domestication remains unclear for most Amazonian crops. Manioc (Manihot esculenta) is the most important staple food crop that originated in this region.
Alessandro Alves‐Pereira   +8 more
doaj   +1 more source

The Amazonian Formative: Crop Domestication and Anthropogenic Soils

open access: yesDiversity, 2010
The emergence of sedentism and agriculture in Amazonia continues to sit uncomfortably within accounts of South American pre-Columbian history. This is partially because deep-seated models were formulated when only ceramic evidence was known, partly ...
Manuel Arroyo-Kalin
doaj   +1 more source

Rentabilité et obstacles à l’adoption des variétés améliorées du Manioc (Manihot esculenta Cranz) chez les paysans en RD Congo

open access: yesRevue Marocaine des Sciences Agronomiques et Vétérinaires, 2021
L’objectif de cette étude a été de comparer la rentabilité des variétés de manioc (Manihot esculenta Cranz.) améliorées par rapport à celles de manioc local et d'évaluer les obstacles d’adoption de nouvelles variétés diffusées par les institutions de ...
Prosper Salumu KIMWANGA   +4 more
doaj  

The evolutionary fate of phenotypic plasticity and functional traits under domestication in manioc: changes in stem biomechanics and the appearance of stem brittleness. [PDF]

open access: yesPLoS ONE, 2013
Domestication can influence many functional traits in plants, from overall life-history and growth form to wood density and cell wall ultrastructure. Such changes can increase fitness of the domesticate in agricultural environments but may negatively ...
Léa Ménard   +4 more
doaj   +1 more source

High genetic diversity among and within bitter manioc varieties cultivated in different soil types in Central Amazonia

open access: yesGenetics and Molecular Biology, 2017
Although manioc is well adapted to nutrient-poor Oxisols of Amazonia, ethnobotanical observations show that bitter manioc is also frequently cultivated in the highly fertile soils of the floodplains and Amazonian dark earths (ADE) along the middle ...
Alessandro Alves-Pereira   +5 more
doaj   +1 more source

Teores de carbamato de etila em aguardentes de cana e mandioca: parte II Contents of ethyl carbamate in sugar cane and manioc spirits: part II

open access: yesQuímica Nova, 2009
Herein, we report the concentration of ethyl carbamate (EC) and copper in 380 samples of sugar-cane spirit and 45 samples of manioc spirit as determined by GC-MS and FAAS respectively. The cyanide content determined spectrophotometrically is reported for
Luiz Gualberto de Andrade Sobrinho   +6 more
doaj   +1 more source

Maintien du potentiel adaptatif chez les plantes domestiquées à propagation clonale

open access: yesRevue d'ethnoécologie, 2012
We studied how Amerindian cultivators of manioc in Amazonia simultaneously maintain the genetic diversity and the agronomic performance of their populations of this plant. A shrub domesticated in Amazonia probably over 7000 years ago, manioc is today the
Doyle McKey   +5 more
doaj   +1 more source

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

open access: yesAdvanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu   +10 more
wiley   +1 more source

The Paleobiolinguistics of Domesticated Manioc (Manihot esculenta)

open access: yesEthnobiology Letters, 2013
Paleobiolinguistics is used to identify on maps where and when manioc (Manihot esculenta) developed importance for different prehistoric groups of Native Americans.
Cecil H. Brown   +4 more
doaj   +1 more source

Examining the Impact of Row Planting on Labor Use for Sustainable Food Production Among Maize Farmers in Rural Ghana

open access: yesAgribusiness, EarlyView.
ABSTRACT Smallholder farmers are reverting to traditional production methods due to the high opportunity costs and unintended consequences of new technologies. This study focuses on row planting technology, which is labor‐intensive and slow without mechanized operations.
Emmanuel Tetteh Jumpah   +4 more
wiley   +1 more source

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