Results 11 to 20 of about 381,080 (207)

Canalized to heat, plastic to cold: adaptive coordination of leaf and seed strategies in populations spanning an elevational gradient. [PDF]

New Phytol
Summary In tropical mountains, surviving temperature extremes demands finely tuned strategies. We investigated how populations of the bromeliad Pitcairnia flammea across a 2200 m elevational gradient balance genetic canalization and plasticity, and whether thermal strategies are coordinated between seeds and leaves.
Chaves CJN, Tavares DU, Lemos-Silva IV, Bento JPSP, Vilela-Bianchini H, Aecyo P, Cacossi TC, Tavares MM, Sabino GP, Kamimura VA, Dos Santos WL, Gonçalves LN, Silva KT, Mayer JLS, Ribeiro RV, Escobar-Escobar D, Feeley KJ, Palma-Silva C.   +17 more
europepmc   +2 more sources

Functional Morphology of the Scaphoid in Extant African Apes, Humans and Fossil Hominins. [PDF]

Am J Biol Anthropol
ABSTRACT Objectives The morphology of the hominoid scaphoid has played a key role in functional and evolutionary hypotheses related to the emergence of hominin bipedalism and tool use. However, the scaphoid's complex morphology is challenging to comparatively analyze via traditional 2D linear measurements.
Steer NG, Bardo A, Davies TW, Rosas A, Skinner MM, Kivell TL.   +5 more
europepmc   +2 more sources

An arbuscular mycorrhiza from the 407-million-year-old Windyfield Chert identified through advanced fluorescence and Raman imaging. [PDF]

New Phytol
Summary Mycorrhizal associations between fungi and plants are a fundamental aspect of terrestrial ecosystems. Mycorrhizas occur in c. 85% of extant plants, yet their geological record remains sparse. Rare fossil evidence from early terrestrial environments offers crucial insights into these ancient symbioses, but visualizing fossil fungi at the ...
Strullu-Derrien C, Wightman R, McDonnell LP, Evans G, Fercoq FA, Kenrick P, Ferrari AC, Schornack S.   +7 more
europepmc   +2 more sources

Coeficiente de correlação entre caracteres agronômicos e de qualidade do grão e sua utilidade na seleção de plantas em aveia [PDF]

Ciência Rural, 2002
A seleção de plantas para caracteres governados por mais de um gene é, muitas vezes, uma tarefa difícil de ser conduzida. Neste sentido, a utilização de caracteres correlacionados pode favorecer na identificação dos melhores indivíduos, para que estes ...
Andreomar José Kurek, Fernando Irajá Félix de Carvalho, Antônio Costa de Oliveira, Adeliano Cargnin, Volmir Sérgio Marchioro, Claudir Lorencetti   +5 more
doaj   +1 more source

Morfología de semillas de siete especies del género Opuntia (Cactaceae) del sureste de Coahuila (México)

Boletín de la Sociedad Argentina de Botánica, 2019
Introducción y Objetivos: Opuntia se distribuye naturalmente desde Canadá hasta Argentina, actualmente forma parte del paisaje en algunas regiones del mundo, comprende entre 191 y 215 especies; la conservación ex situ de este recurso fitogenético ha ...
Areli Gonzaléz Cortés, Francisca Ramírez Godina, M. Humberto Reyes-Valdés, Valentín Robledo Torres, Miguel Ángel Pérez Rodríguez, José A. Villarreal Quintanilla, Alfonso López Benítez   +6 more
doaj   +1 more source

La representación de la ira en los personajes ancianos de la comedia de Menandro

Circe de Clásicos y Modernos, 2023
El trabajo se propone analizar la representación de la ira en la comedia de Menandro y, en particular, la operación de ‘tipificación’ de la cólera en su obra, que se vincula con la construcción de personajes-tipo.
Jimena Schere
doaj  

Dimensionamento amostral de caracteres de feijão em condição hídrica irrigada e não irrigada

Semina: Ciências Agrárias, 2022
O uso de métodos estatísticos para avaliar o crescimento e produção das plantas é crucial para o avanço tecnológico do feijoeiro. A pesquisa teve por objetivo dimensionar a amostra para a estimação da média de caracteres avaliados em diferentes ...
Valeria Pohlmann, Sidinei José Lopes, Isabel Lago, André Schoffel, Caren Alessandra Müller, Menigui Spanevello Dalcin, Pamela Nunes Bittencourt, Jessica Taynara da Silva Martins, Luiz Fernando Flores de Siqueira   +8 more
doaj   +1 more source

Estudios de asociación genómica en ovinos de América Latina. Revisión

Revista Mexicana de Ciencias Pecuarias, 2020
Los ovinos, son una de las especies domésticas más importantes a nivel mundial, debido al potencial productivo y reproductivo que poseen. En este sentido, identificar los mejores animales para características productivas de interés económico, es el ...
Karen Melissa Cardona Tobar, Diana Carolina López Álvarez, Luz Ángela Álvarez Franco   +2 more
doaj   +1 more source

AGROMORPHOLOGICAL CHARACTERIZATION AND PHENOTYPICAL DIVERSITY OF THE PALLAR GERMPLASM COLLECTION (Phaseolus lunatus L.) FROM INIA, PERU

Tropical and Subtropical Agroecosystems
Background: Pallar (Phaseolus lunatus) is a grain legume of great socioeconomic importance in Peru, which has been domesticated in the past by pre-Hispanic cultures.
Hans Dadther-Huaman, Tabita Abigail Gambini-de la Cruz, Bilijin Coaquira-Mendoza, Diana Garay-Duran, Jhimy Parco-Quinchori, René Quispe-Castro, Leandro Aybar-Peve, Sergio Contreras-Liza, Victor Casa-Coila   +8 more
doaj   +1 more source

Variation of specific morphological traits and ploidy level of five "aegilops" l. species in Morocco [PDF]

, 2003
Variation of specific morphological traits and ploidy level of five Aegilops L. species in Morocco.The genus Aegilops L. represents an important natural source of useful genes for wheat breeding, with particular emphasis on biotic and abiotic stress ...
Assali, Nourredine, Belkadi, Bouchra, Benlhabib, Ouafae   +2 more
core   +4 more sources