Results 51 to 60 of about 15,241 (270)

Effects of nitrogen deposition on territory numbers of breeding birds

Conservation Biology, EarlyView.
Abstract Deposition of atmospheric N (nitrogen) is assumed to be a major cause of biodiversity decline in Europe. To date, few studies on the direct or indirect effects of N on bird species have been conducted. Using Swiss bird count data and habitat data, we analyzed the correlation of N deposition with numbers of territories of 112 breeding bird ...
Kim Meichtry‐Stier, Pius Korner, Simon Birrer, Peter Knaus   +3 more
wiley   +1 more source

Assembling Nutrition‐sensitive Agriculture: How Global Food Security Projects Are Sustained Despite Tensions, Contradictions and Failure

Development and Change, EarlyView.
ABSTRACT This article examines the global discourse surrounding nutrition‐sensitive agriculture (NSA) and its implementation within Feed the Future, a food security initiative of the US Agency for International Development in Guatemala. It explores how such global nutrition efforts have increasingly incorporated critiques advanced by critical nutrition
Carrie Seay‐Fleming
wiley   +1 more source

Germination response of Erigeron sumatrensis (Retz.) seeds to drying and freezing

Agrociencia Uruguay
Erigeron species form a complex of weed species that have evolved herbicide resistance in Uruguay. Genetic studies using seeds from different biotypes are frequently conducted to understand how this evolution occurred.
Federico Condón, Tiago Kaspary, Silvana González   +2 more
doaj   +1 more source

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

TIR innovations in plant immunity

New Phytologist, EarlyView.
Summary Toll/interleukin‐1 receptor (TIR) domain‐containing immune receptors are crucial for plant immunity, with recent advancements highlighting the enzymatic functions of TIR domains and their production of signaling molecules. TIR‐catalyzed compounds interact with receptors to form functional modules that trigger the oligomerization of helper ...
Zhongshou Wu
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

Factores antinutricionales en semillas

Biotecnología en el Sector Agropecuario y Agroindustrial, 2009
El presente artículo proporciona una revisión de los conocimientos rela- cionados con los factores antinutricionales, más comunes, presentes en algunos alimentos, especialmente en semillas comestibles. Además se incluyen datos relacionados con su naturaleza química, efectos sobre los procesos digestivos y aprovechamiento de nutrientes, posibles formas ...
Chaparro, Diana Carolina, Porrilla, Yamid, Elizalde, Ana deDios   +2 more
openaire   +3 more sources

Cryptic CAM photosynthesis in Joshua tree (Yucca brevifolia, Y. jaegeriana)

New Phytologist, EarlyView.
Summary Joshua trees are long‐lived perennial monocots native to the Mojave Desert in North America. Composed of two species, Yucca brevifolia and Y. jaegeriana (Asparagaceae), Joshua trees are imperiled by climate change, with decreases in suitable habitat predicted under future climate change scenarios.
Karolina Heyduk, Sara Sciulla, Bridget Hennessy, Madeline Czymmek, Edward V. McAssey, Chase Kane, G Young Kim, Ifeoluwa Sogunle, Lulu Heublein, Dhriti Sriram, Bryan MacNeill, Michael T. Hren, Todd C. Esque, Jeremy B. Yoder, Michael R. McKain, Christopher Irwin Smith, Lesley A. DeFalco   +16 more
wiley   +1 more source

DISEÑO Y CONSTRUCCIÓN DE UN EQUIPO DE PRUEBAS PARA LA DETERMINACIÓN DE LA RESISTENCIA AL FLUJO DE AIRE EN GRANOS Y SEMILLAS

Ingeniería, 2011
El diseño del equipo de pruebas se basó en una serie de investigaciones realizadas en estudios similares, tomando en cuenta las normas para la toma de medición de varios parámetros requeridos en el estudio.
José Francisco Aguilar Pereira
doaj   +1 more source

Caracterización del banco de semillas de cuatro agroecosistemas de la Frailesca, Chiapas, México

Siembra, 2020
El objetivo del trabajo fue caracterizar las arvenses del banco de semillas de agroecosistemas representativos de la región tropical denominada Frailesca, en el estado de Chiapas, México.
Carlos Ernesto Aguilar Jim´énez, Alfredo Tolón Becerra, Franklin B. Martínez Aguilar, José Manuel Febles González, Héctor Vásquez Solís, Juan Carlos López Hernández   +5 more
doaj   +1 more source