The induction of stem frost hardiness by low temperature, water stress, short days, and their combinations in 2- and 4-month-old growing dogwoods (Cornus stolonifera) were investigated. When plants were subjected to more than one factor, the increased hardiness was the sum of the effects of the individual factors involved. No interactions among these factors on hardiness were observed during a ...

BACKGROUND Air pollution and weather are just two of many environmental factors contributing to traffic accidents (RTA). OBJECTIVES This study assessed the effects of these factors on traffic accidents and related mortalities in Ahvaz, Iran. METHODS In this ecological study, data about RTA, traffic-related mortalities, air pollution (including NO, CO, NO2, NOx PM10, SO2, and O3 rates) and c...

Frost events are of particular importance for plants. Its occurrence determines growing season. Early or late frost may cause injuries and damage in plants which have not yet entered dormancy fall/winter, flowering period winter/spring. Global average temperature increase has been accompanied by changes extreme events. Observations shown that there a decreasing pattern frequencies intensities I...

Regional warming, owing to urbanization, leads to earlier spring phenological events and may expose plants to hard freeze damage. This study examined the influence of urbanization on the risk of frost damage to spring flowers in South Korea from 1973 to 2015. For the analysis period, we categorized 25 cities into two groups: those showing rapid population growth (rPG) ≥ 200,000, including 13 ci...

the quality of pressure distribution over the atmosphere of the sea level and geopotential altitude at different atmosphere layers affect on many climate and meteorology phenomena of the earth surface. one of the important meteorology phenomenon is the occurrence of frost phenomenon especially late spring frost. in this surrey, occurring late spring frost days and minimum temperature during the...

A decrease of protein, RNAs, and starch, and an increase of sugar were observed in 3-day water-stressed red osier dogwood plants (Cornus stolonifera Michx.) when the frost hardiness increased from -3 to -6 C. As the frost hardiness increased to -11 C after 7 days of treatment, the starch continuously decreased, however, the proteins and RNAs increased with a continuous increase of sugar. Furthe...

Climate change affects the agroecological conditions and persistence of cherry tree flowering. Detailed evaluation minimum air temperature occurrence synoptic events during spring frosts within flowering in Czech Republic (Central Europe) is missing. The main objective this study was to evaluate above-mentioned variables different parts country from 1924 2012. Our question how frequency frost d...