Results 31 to 40 of about 63,779 (222)

Recursive and Cyclic Constructions for Double‐Change Covering Designs

open access: yesJournal of Combinatorial Designs, Volume 34, Issue 4, Page 198-209, April 2026.
ABSTRACT A double‐change covering design (DCCD) is a v‐set V and an ordered list L of b blocks of size k where every pair from V must occur in at least one block and each pair of consecutive blocks differs by exactly two elements. It is minimal if it has the fewest blocks possible and circular when the first and last blocks also differ by two elements.
Amanda Lynn Chafee, Brett Stevens
wiley   +1 more source

Evaluación del control de malezas en un sistema policultural de yuca y frijol.

open access: yesAgronomía Mesoamericana, 2015
En el Instituto de Investigaciones Hortícolas Liliana Dimitrova, ubicado en el municipio de Quivicán, en la provincia La Habana, Cuba, se combinaron genotipos de yuca (Manihot esculenta Crantz) y frijol común (Phaseolus vulgaris L.), con el objetivo de ...
Adrián Hernández   +3 more
doaj   +1 more source

Leaf Litter Decomposition in the Tropics Dynamically Recovers Following Experimental Disturbance Across Temporal Scales

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Litter decomposition by arthropods and microbes is a key ecosystem process in tropical forests, yet its response to disturbance and forest regeneration remains poorly understood. To investigate decomposition dynamics across forest succession, we conducted a space‐for‐time study in the Ecuadorian lowland Chocó spanning active cacao plantations and ...
Arianna Tartara   +11 more
wiley   +1 more source

Factores que afectan la expresión transitoria del gen GUS en yuca (Manihot esculenta Crantz)

open access: yesRevista Colombiana de Biotecnología, 2018
La expresión transitoria es una métodología ampliamente utilizada para el estudio de genes. Sin embargo, hasta la fecha no existe un reporte en donde se utilice esta técnica en hojas de yuca de plantas adultas. Por esta razón este trabajo se centró en la
Edilene Ramírez   +2 more
doaj   +1 more source

Retención de β-caroteno en preparación de Fariña y Casabe [PDF]

open access: yes, 2017
Con el apoyo del programa de bioforti¬cación de HarvestPlus, el Centro Internacional de Agricultura Tropical (CIAT) trabaja actualmente en la generación de nuevas variedades de yuca amarilla con altos contenidos de β -caroteno con el ...
Belalcázar, John   +6 more
core  

Effect of seed circulation systems on the spread and diversity of Xanthomonas phaseoli pv. manihotis infecting cassava crops of the Colombian Caribbean

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 1, Page 353-364, January 2026.
Cassava is a lifeline for millions of people across the tropics, but its productivity is at risk from a disease called Cassava Bacterial Blight (CBB). In this study, we explore how the everyday practices of farmers exchanging cassava cuttings—a long‐standing tradition—can shape how the disease spreads and evolves in the Colombian Caribbean.
Darío Pérez   +7 more
wiley   +1 more source

Physicochemical characterization of two cassava (Manihot esculenta Crantz) [PDF]

open access: yes, 2013
P?ginas 19-25El almid?n y la harina de yuca fueron obtenidos de ra?ces cultivadas en Colombia en dos condiciones ambientales espec?ficas. Se evaluaron propiedades fisicoqu?micas como tama?o y morfolog?a del grano, contenido de amilosa, cristalinidad ...
Fern?ndez Quintero, A.   +1 more
core  

Ctenosaura palearis [PDF]

open access: yes, 1990
Number of Pages: 3Integrative BiologyGeological ...
Axtell, Ralph W., Buckley, Lawrence J.
core   +1 more source

Amazonia's Cassava and Manioc Through Historical Times

open access: yesThe Journal of Latin American and Caribbean Anthropology, Volume 30, Issue 4, December 2025.
ABSTRACT This provocation calls readers to think more deeply about the role anthropology could play in radically disrupting plant blindness. Thanks to Environmental Humanities, the natural world is no longer apprehended as a mere backdrop to human activity.
Laura Rival
wiley   +1 more source

Tropical root crops [PDF]

open access: yes, 2017
A general description is given of cassava. Data deal with geographical distribution, production, yields and nutritional value, varietal improvement, agronomic practices, diseases and pests. Research activities in cassava are also described.
International Center for Tropical Agriculture
core  

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