Although cold hardiness is known to be a major determinant of tree species distribution, its dynamics and the factors that regulate it remain poorly understood. Variation in cold hardiness and carbohydrate concentration, from dormancy induction until bud burst, were investigated in populations of two deciduous (Quercus robur L. and Quercus pubescens Willd.) and one evergreen (Quercus ilex L.) E...

The role of light in cold acclimation of Hedera helix L. var. Thorndale appears to differ from that reported for winter annuals. Although light greatly enhances the degree of hardiness attained, cold acclimation is not obligatorily linked to a light requirement. Photoperiods, varying from 8 to 24 hours, received during the cold acclimation period were equally effective in promoting maximum hard...

A bstiract. The role of light in cold acclimation of Hedera helix L. var. Thorndale appears to differ from that reported for winter annuals. Although light greatly enhances the degree of hardiness attained, cold acclimation is not obligatorily linked to a light requirement. Photoperiods, varying from 8 to 24 hours, received during the cold acclimation period were equally effective in promoting ...

The ratio of electrical conductance measured at two frequencies can be used to predict the cold hardiness of stem sections of Cornus stolonifera Michx. during the first stage of cold acclimation. Electrical conductance at 50 hertz divided by electrical conductance at 100 kilohertz gave a better estimate of hardiness than measurements at either frequency alone. The observed increase in the elect...

OBJECTIVE Nursing is one of the stressful jobs that affect nurse's well-being. The aim of this study was to assess the relationship between spiritual intelligence, hardiness and well-being among Iranian nurses. METHODS Samples of this cross- sectional study selected by Randomized stratified sampling, 125 nurses who have been working in different wards of Bushehr university hospitals. Data wer...

The article examines the psychological Hardiness in a Life of young university teachers context their values. parameter was taken as an indicator. Correlation analysis applied to determine relationship between and teachers' values; predictive model characterizing dependence quantitative variable on factors developed using linear regression method. discovery significant relationships values Univ...

chickpea (Cicer arietinum L.) is reportedly controlled by at least five genes with tolerance dominant over Lentil (Lens culinaris Medik.) germplasm with sufficient winter susceptibility (Malhotra and Singh, 1990). hardiness to survive most winters in cold northern areas is available. However, the use of that germplasm in breeding programs is hampered One of the major problems in characterizing ...