Results 71 to 80 of about 6,579 (251)

Budburst Protocol [PDF]

, 2003
The purpose of this resource is to observe budburst on selected trees at a Land Cover or Phenology Site. All students will learn about hummingbird natural history and ecology.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

Combined volunteer and ecological network observations show broad‐scale temperature‐sensitivity patterns for deciduous plant flowering and leaf‐out times across the eastern USA

Journal of Ecology, EarlyView.
Phenological ‘big data’ encompassing over 100 species across the eastern USA show that leaf‐out and flowering occur earlier with warmer temperatures and that native species and individuals at high latitudes tend to have weaker temperature sensitivities than introduced species and more southern plants; these findings suggest adaptations within and ...
Amanda S. Gallinat, Mark D. Schwartz, Alison Donnelly, Xiaolu Li, Theresa M. Crimmins   +4 more
wiley   +1 more source

Effects of cane- and spur-retained node numbers on the pre-flowering vegetative growth of cane-pruned Sauvignon blanc

OENO One, 2022
In established vineyards, node number retention at winter pruning is the first step to achieving and maintaining vine balance. Balanced vines exhibit timely and quasi-uniform 100 percent budburst.
Paul T. M. Epee, Olaf Schelezki, Michael C. T. Trought, Armin Werner, Rainer W. Hofmann, Peter Almond, Stuart Charters, Amber Parker   +7 more
doaj  

The phenological growth stages, heat unit requirement and anti‐tyrosinase activity of Greyia radlkoferi Szyszyl

Annals of Applied Biology, EarlyView.
Phenological growth stages of Greyia radlkoferi: The phenological growth stages of Greyia radlkoferi were monitored for a period of 3 years from 2018, 2019 and 2020. The flower budding, bud burst, flowering, fading, fruiting, seeding, leaf senescence and vegetative stage were recorded. The tyrosinase inhibitory activity of G.
Joseph Malele, Riana Kleynhans, Babalwa Matsiliza‐Mlathi, Gerhard Prinsloo   +3 more
wiley   +1 more source

Green-Up Protocol [PDF]

, 2003
The purpose of this resource is to observe plant green-up and report data that will be used by scientists to validate satellite estimates of the beginning of the plant growing season.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

Ecological effects of artificial light at night on wild plants [PDF]

, 2016
PublishedSummary 1.Plants use light as a source of both energy and information. Plant physiological responses to light, and interactions between plants and animals (such as herbivory and pollination), have evolved under a more or less stable regime of ...
Bennie, Jonathan, Cruse, D, Davies, TW, Gaston, Kevin J.   +3 more
core   +1 more source

Variation in the Molecular Phenotype of βglu‐1, an Insect Defence‐Related Beta‐Glucosidase Gene, in Two Transcontinental Picea Species

Molecular Ecology, EarlyView.
ABSTRACT Forest trees face threats from many insect pest species, underscoring the importance of understanding their defence mechanisms for survival. In a North American conifer species, Picea glauca, gene expression of βglu‐1 produces phenolic compounds (acetophenones) that defend against its insect defoliator, Choristoneura fumiferana. βglu‐1 is also
Ernest T. Y. Wu, Tin Hang Hung, Nadir Erbilgin, Aziz Ullah, Āris Jansons, Hisham A. A. Ali, Sonya M. Clegg, John J. MacKay   +7 more
wiley   +1 more source

Budburst dynamics of Norway spruce seedlings (Picea abies Karst.) – selection for late spring frosts resistence

REFORESTA, 2021
Norway spruce is one of the most commonly used species for new forest planting in Europe. It is planted in a large number of habitats, often without following the previous results in the success of afforestation.
B. Cvjetković, M. Mataruga, Vanja Daničić, M. Šijačić‐Nikolić   +3 more
semanticscholar   +1 more source

Cold Hardiness Dynamics and Spring Phenology: Climate-Driven Changes and New Molecular Insights Into Grapevine Adaptive Potential

Frontiers in Plant Science, 2021
Climate change has become a topic of increasing significance in viticulture, severely challenged by this issue. Average global temperatures are increasing, but frost events, with a large variability depending on geographical locations, have been ...
Valeria De Rosa, Giannina Vizzotto, Rachele Falchi   +2 more
doaj   +1 more source

Near-surface remote sensing of spatial and temporal variation in canopy phenology [PDF]

, 2009
There is a need to document how plant phenology is responding to global change factors, particularly warming trends. “Near-surface” remote sensing, using radiometric instruments or imaging sensors, has great potential to improve phenological monitoring ...
Braswell, Rob, Hollinger, David Y, Jenkins, J P, Ollinger, Scott V, Richardson, Andrew D.   +4 more
core   +2 more sources