نتایج جستجو برای: late autumn frost

تعداد نتایج: 210182  

2010
BRANDON WESLEY JOHN KERNS YI-LENG CHEN MEI-YU CHANG

The diurnal variations in surface winds, rain, and clouds over Taiwan are presented for three rainfall regimes: the mei-yu (16 May–15 June), summer (16 July–31 August), and autumn (16 September–15 October). Though the magnitude of diurnal island divergence and convergence is similar under each regime, the diurnal variations of rain and clouds vary considerably between the regimes. These differe...

This study was conducted to investigate the frost status in the 11 commercial cultivars, three newly introduced cultivars and two genotypes of olives. After the occurrence of frost at the Tarom region of Zanjan province in February 2019, three trees from each cultivar were selected. Frost symptoms were recorded based on observational indices. Gas exchange traits (stomatal conductance, transpira...

2017
William Daniel Moore

In an epidemiological point of view the chief characteristic of the years 1862 and 1863 in Sweden, was the wide prevalence of measles. The disease began to augment in quantity in 1861. The following year (1862) it became epidemic, and pervaded the whole kingdom. During 1863 the malady declined, so that, after the first six months of the year, it may be considered to have ceased as an epidemic. ...

Journal: Journal of Nuts 2011
A. Imani K. barzegar S. Piripireivatlou

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...

Journal: :Horticulturae 2022

Evaluating genetic diversity in walnut (Juglans regia L.) populations is a rapid approach used by breeding programs to distinguish superior genotypes. The present study was conducted on the population of Hamedan Province, one richest and most genetically diverse regions Iran, during 2018–2019. After initial screening, 47 genotypes were selected for further evaluation pomological phenological tr...

2016
Maosen Lin Dexin Guan Jiabing Wu Fenghui Yuan Anzhi Wang Changjie Jin

Frost heave, which is the volumetric expansion of frozen soil, has great ecological significance, since it creates water storage spaces in soils at the beginning of the growing season in cold temperate forests. To understand the characteristics of frost heave in seasonally frozen soil and the factors that impact its extent, we investigated the frost heave rates of forest soil from different dep...

2011
Radomir Jaskuła Agnieszka Soszyńska-Maj

This paper summarizes the current knowledge on winter active Carabidae in Central and Northern Europe. In total 73 winter active species are listed, based on literature and own observations. Ground beetles are among the three most numerous Coleoptera families active during the autumn to spring period. The winter community of Carabidae is composed both of larvae (mainly autumn breeding species) ...

2014
SONIA D. BATTEN JAMES F. R. GOWER Roger Harris

Deliberate fertilization of a patch of water west of Haida Gwaii, British Columbia, with iron sulphate and oxide occurred in summer 2012 and triggered a phytoplankton bloom strongly visible in satellite imagery in late August and detectable through September 2012. Routine sampling by the Continuous Plankton Recorder Survey from commercial ships occurred in the vicinity of the fertilized patch b...

2002
R. A. Peterson D. A. Walker V. E. Romanovsky J. A. Knudson M. K. Raynolds W. B. Krantz

We used field observations of frost-boil distribution, soils, and vegetation to attempt to validate the predictions of a Differential Frost Heave (DFH) model along the temperature gradient in northern Alaska. The model successfully predicts order of magnitude heave and spacing of frost boils, and can account for the circular motion of soils within frost boils. Modification of the model is neede...

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