Anurag A. Agrawal,* Jeffrey K. Conner and John R. Stinchcombe Department of Botany, University of Toronto, 25 Willcocks Street, Toronto, ON, Canada M5S 3B2 Kellogg Biological Station and Department of Plant Biology, Michigan State University, 3700 East Gull Lake Drive, Hickory Corners, MI 49060, USA Department of Ecology and Evolutionary Biology, Box G-W, Brown University, Providence, RI 02912,...

Spring frosts can defoliate trees, reduce canopy carbon assimilation, and alter interspecific competition dynamics. These events may become more common with climate change, but our understanding of the associated ecological impacts is limited by stochastic nature their occurrences. In 2020, a late spring frost defoliated oak ( Quercus spp.), not co-occurring maples Acer spp.) across temperate b...

Prunus spinosa species is distributed across wide range of geographical areas which are subject to climatic, edaphic factors and long-term divergent selection. This could lead local adaptation hence ecotypes in terms morphological, physiologically or biochemical inclination their environment. To investigate whether the (Prunus spinosa) has been influenced by environmental conditions populations...

Frost protection or protecting plants from cold temperatures where they could be damaged must be a consideration in vineyard planning. Cold protection events commonly occur during “radiation” frost conditions when the sky is clear, there is little wind and strong temperature inversions can develop. These conditions can happen during spring, fall or winter when it is necessary to keep canes, bud...

The effects of topography, soil moisture, wind and grazing on the emergence and survival of seedlings of Festuca spp. were examined in the steppe zone of Patagonia, Argentina. Ungrazed and grazed field treatment plots were established on a plain and a north-facing slope at the Media Luna Ranch (43" 36' S, 71" 25' W). On the leeward and windward sides of each of 15 Festuca plants, 0.1 m x 0.4 m ...

Frost damage to the flowers and early developing fruits is one of the most limiting factors in almond cultivation regions of the world. This study was undertaken to understand almond response to frost damage concerning ion leakage in order to develop a criterion for the selection of frost-resistant cultivars in field experiments. In this work, 60 almond cultivars and genotypes on the basis fros...

We studied the photosynthetic activity of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies [L.] Karst) in relation to air temperature changes from March 2013 to February 2014. We measured the chlorophyll fluorescence of approximately 50 trees of each species growing in southern Finland. Fluorescence was measured 1-3 times per week. We began by measuring shoots present in late win...