Results 11 to 20 of about 6,119 (101)

Automated extraction of leaf mass per area from digitized herbarium specimens

New Phytologist, EarlyView.
Summary The digitization of vast herbarium collections has made millions of plant specimen images freely available online, which can now be used to generate phenotypic datasets of unprecedented scope. Here, we assess the potential of computer vision tools to automate the extraction of predicted leaf mass per area (LMApred) from digitized herbarium ...
Thais Vasconcelos, William N. Weaver, Aly Baumgartner, Zoë Bugnaski, James Boyko   +4 more
wiley   +1 more source

Specimen‐tailored ‘lived’ climate reveals precipitation onset and amount best predict specimen phenology, but only weakly predict estimated reproduction across a clade

New Phytologist, EarlyView.
Summary Herbarium specimens are widely distributed in space and time, thereby capturing diverse conditions. We reconstructed specimen ‘lived’ climate from knowledge of germination cues and collection dates for 14 annual species in the Streptanthus (s.l.) clade (Brassicaceae) to ask: which climate attributes best explain specimen phenological stage and ...
Megan Bontrager, Samantha J. Worthy, Laura Leventhal, Julin N. Maloof, Jennifer R. Gremer, Johanna Schmitt, Sharon Y. Strauss   +6 more
wiley   +1 more source

Harnessing the benefits of herbarium specimen digitisation for inferring recent and ongoing plant extinctions

New Phytologist, EarlyView.
Summary Evidence for the ongoing biodiversity crisis rests on assessment of a small fraction of described species, with major knowledge gaps for most organisms, including plants. Here, we highlight how digitised herbarium specimens can be used to accelerate and improve estimates of recent and ongoing plant extinctions.
Aelys M. Humphreys, Diana O. Fisher, Naomi A. Witts, Daniele Silvestro, Alexandre Antonelli   +4 more
wiley   +1 more source

VERNALIZATION2 alters early tiller development in a facultative spring hexaploid bread wheat

New Phytologist, Volume 250, Issue 6, Page 4022-4035, June 2026.
Summary An extended period of cold exposure enables the process of vernalization in winter cereals and is important for the synchronised timing of the floral transition. The cereal‐specific floral repressor VERNALIZATION2 (VRN2) has an integral role in vernalization, yet this locus remains poorly characterised in facultative spring hexaploid wheat ...
Dominique Hirsz, Harry Taylor, India Lacey, Wenxue Wu, Adam Gauley, Laura Dixon   +5 more
wiley   +1 more source

Directrices tecnicas para el movimiento seguro del germoplasma del cacao. Version revisada de las Directrices Tecnicas de FAO/IPGRI No. 20 (Tercera actualizacion, Octubre de 2017) [PDF]

, 2017
These guidelines describe technical procedures that minimize the risk of pest introductions with movement of cacao germplasm for research, crop improvement, plant breeding, exploration or conservation. The recommendations made in these guidelines are
Bioversity International, Daymond, A.J., End, M.J., Global Cacao Genetic Resources Network, Hadley, P.   +4 more
core   +1 more source

Shaping future forests: how can ecophysiology support climate‐smart forest management?

New Phytologist, Volume 250, Issue 5, Page 2778-2813, June 2026.
Summary Climate change, particularly the associated increase in extreme events and disturbances, threatens the numerous environmental, social, and economic benefits that forests provide, both locally and globally. Heat and drought pose significant risks to forest ecosystems; the anticipated future climate is expected to exacerbate this trend ...
Arthur Gessler, José M. Grünzweig, Laura Bigio, Henrik Hartmann, Nate McDowell, Frank Krumm, Arun K. Bose, Andreas Rigling, Harald Bugmann, Valentina Vitali, Pascal Schneider, J. Jelle Lever, Janine Schweier, Anne Kempel, Niklaus E. Zimmermann, Philipp Brun, Jürgen Bauhus, Micah Wilhelm, Alessandra Bottero   +18 more
wiley   +1 more source

IMPORTANCIA ETNOBOTÁNICA DE UNA PLANTA VASCULAR SIN SEMILLA EN MÉXICO: Equisetum

Polibotánica, 2006
La etnobotánica es la rama del conocimiento humano que se encarga de estudiar las relaciones entre los grupos humanos y las plantas. Casi siempre las angiospermas han sido las plantas con mayor tradición en las comunidades étnicas de nuestro país. Sin embargo, existen algunas plantas vasculares sin semilla, como el género Equisetum, que tienen un valor
María de Lourdes Esparza-Aguilar, Armando Gómez-Campos, Juan Carlos Gallardo-Pérez   +2 more
openaire   +2 more sources

Enfermedades del frijol [PDF]

, 2016
Diseases are one of the limiting factors to bean production in L.A. The prevalency and severity of the disease depends on the quantity of inoculum existing in the region, environmental conditions and the quality of the seed used.
Castaño, M., Rivero C, R., Schwartz, H
core  

Da Vinci's mischief: xylem conduits in the stems of woody plants do not furcate

New Phytologist, Volume 250, Issue 5, Page 3001-3013, June 2026.
Summary The hydraulic architecture of plants is often modeled as a ‘furcating’ network, in which xylem conduits proliferate in number toward the stem apex, analogous to animal circulatory systems. Yet whether furcation actually occurs within woody stems remains untested, despite major implications for carbon costs and hydraulic efficiency.
Gilberto Alemán‐Sancheschúlz, Tommaso Anfodillo, Ana Isabel Pérez‐Maussán, María Magdalena Ayala‐Hernández, Mark E. Olson   +4 more
wiley   +1 more source

Anatomical characterization of stems of Chenopodium (Chenopodiaceae). Contributions to the study of archaeological remains. [PDF]

, 2014
El género Chenopodium esta representado por 37 especies en Argentina. Son plantas cosmopolitas, herbáceas anuales o perennes. Tres especies son cultivadas como alimenticias, C. pallidicaule y C. quinoa Willd. en Sudamérica, y C.
Aguirre, María Gabriela, Arias, Marta Eugenia, Escola, Patricia Susana, Luque, Ana Catalina   +3 more
core