نتایج جستجو برای: late spring frost

تعداد نتایج: 247852  

2015
Or Sperling J. Mason Earles Francesca Secchi Jessie Godfrey Maciej A. Zwieniecki Lucas C.R. Silva

Cellular respiration depletes stored carbohydrates during extended periods of limited photosynthesis, e.g. winter dormancy or drought. As respiration rate is largely a function of temperature, the thermal conditions during such periods may affect non-structural carbohydrate (NSC) availability and, ultimately, recovery. Here, we surveyed stem responses to temperature changes in 15 woody species....

Journal: :Agriculture 2021

In the last few years, spring frosts have become more of a rule than an exception. There are several prevention measures available for growers and numerous being tested; however, fruitlets often affected to some extent. One common phenomena is development frost rings. The aim our study was evaluate how occurrence rings affects sugar, organic acid, phenol content in flesh peel cv. ‘Gala’ apples....

Journal: :Remote Sensing 2021

Spring frost damage (SFD), defined as the disaster during period of newly formed tea buds in spring caused by lower temperature and damage, is a particular challenge for plants (Camellia sinensis), whose capacity to adapt extreme weather climate impacts limited. In this paper, region Middle Lower Reaches Yangtze River (MLRYR) China was selected major plantation study area, focused on concentrat...

2017
Agnieszka Wypych Agnieszka Sulikowska Zbigniew Ustrnul Danuta Czekierda

An observed increase in air temperature can lead to significant changes in the phenology of plants and, consequently, changes in agricultural production. The aim of the study was to evaluate the spatial differentiation of thermal resources in Poland and their variability during a period of changing thermal conditions in Europe. Since the variability of thermal conditions is of paramount importa...

Journal: :Global change biology 2016
Kevin R Ford Constance A Harrington Sheel Bansal Peter J Gould J Bradley St Clair

Under climate change, the reduction of frost risk, onset of warm temperatures and depletion of soil moisture are all likely to occur earlier in the year in many temperate regions. The resilience of tree species will depend on their ability to track these changes in climate with shifts in phenology that lead to earlier growth initiation in the spring. Exposure to warm temperatures ('forcing') ty...

Journal: :Tree physiology 2002
Thierry Améglio Christian Bodet André Lacointe Hervé Cochard

Xylem vessels of Prunus persica Batsch (peach) and Juglans regia L. (walnut) are vulnerable to frost-induced embolism. In peach, xylem embolism increased progressively over the winter, reaching a maximum of 85% loss of hydraulic conductivity (PLC) in early March. Over winter, PLC in walnut approached 100%, but the degree of xylem embolism varied during the winter, reflecting the ability of waln...

Journal: :Journal of Agricultural Meteorology 1959

2006

Cephalosporium stripe (fungus str ipe) is a vascular wi l ttype disease of wheat and barley, which also affects other cereals and grasses. l t is caused by the soifborne fungus Cephalosporium gramineum. ln autumn, the fungus produces millions of bacteria-sized spores (conidia), which are washed into the soil around the plant. These spores are the structures that will eventually infect the plant...

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