scholarly journals WINTER HARDINESS AND FROST RESISTANCE OF WOOD SPECIES IN THE ANTHROPOGENIC ENVIRONMENT OF EUROPEAN NORTH OF RUSSIA

2018 ◽  
pp. 26-32
Author(s):  
M.M. Andronova
Keyword(s):  
Wood Species ◽  
Frost Resistance ◽  
Winter Hardiness ◽  
European North ◽  
Anthropogenic Environment

Study of the frost tolerance and winter hardiness of emmer (Triticum turgidum ssp. dicoccon) genebank accessions under natural and artificial conditions

2003 ◽  
Vol 51 (3) ◽  
pp. 289-295
Author(s):  
G. Kovács ◽  
A. F. Bálint ◽  
J. Sutka
Keyword(s):  
Genetic Resources ◽  
Frost Resistance ◽  
Triticum Turgidum ◽  
Frost Tolerance ◽  
Winter Hardiness ◽  
Economic Situation ◽  
Acceptable Level ◽  
Traditional Foods ◽  
Public Data ◽  
Increasing Demand

The growing interest in emmer cultivation has no doubt been stimulated by the increasing demand for traditional foods with an image of naturalness, especially on the organic market. The new economic situation could stimulate the breeding and production of emmer as the source of an especially valuable foodstuff. It is the task of breeders to produce emmer varieties that can survive even the hardest winter occurring in the targeted cultivation area without serious damage. The best sources to improve the winter hardiness are probably the emmer genetic resources stored in genebanks. Unfortunately no public data are available on the frost tolerance and winter hardiness of the various genebank accessions. In the present research the frost tolerance and winter hardiness of 10 winter emmer genebank accessions were studied under nursery and phytotronic conditions. The results suggest that the majority of the populations studied are frost-sensitive, and only few landraces have an acceptable level of winter hardiness and frost resistance.

Seasonal changes in the composition of winter wheat plants, in relation to frost resistance

1926 ◽  
Vol 16 (4) ◽  
pp. 522-538 ◽  
Author(s):  
R. Newton ◽  
W. R. Brown
Keyword(s):  
Moisture Content ◽  
Winter Wheat ◽  
Seasonal Changes ◽  
Frost Resistance ◽  
Winter Hardiness ◽  
Active Cell ◽  
The Press ◽  
Plant Constituents

1. The adaptation of plants to resist frost appears to depend on seasonal changes which give the protoplasm stability. A study has been made of the changes occurring in winter wheat plants, of varieties differing widely in winter hardiness, during the fall and winter months.2. By analysing the press-juice as well as the entire tissues at progressive dates, it has been possible to study the distribution of the more important constituents between the physiologically active cell fluids and the relatively inert supporting framework.3. One of the most important changes in the quantitative relations of the various plant constituents is the reduction in moisture content. This takes place to a greater degree in hardy varieties. The resulting concentration of colloids and sugars in the cell fluids increases the resistance to freezing.

scholarly journals EVALUATION OF SOME GOOSEBERRY VARIETIES REGARDING ADAPTABILITYIN THE MIDDLE URALS

2021 ◽  
pp. 12-18
Author(s):  
N.S. Yevtushenko ◽  
Keyword(s):  
Drought Resistance ◽  
General Condition ◽  
Frost Resistance ◽  
Fruit Weight ◽  
Winter Hardiness ◽  
Middle Urals ◽  
Observation Data ◽  
The Middle Urals ◽  
Fruit Character ◽  
Crop Varieties

This paper discusses the observation data on 23 gooseberry varieties on 4 fruiting seasons (2016-2019) under the conditions of the Middle Urals. The varieties were evaluated in terms of adaptive and economic charac-ters: winter hardiness, frost resistance, productivity, drought resistance, and large-fruit character. The observa-tions and counts were carried out according to the “Pro-gram and methodology for the study of fruit, berry and nut-bearing crop varieties”. Two gooseberry varieties Berill and Avangard stood out with good adaptation to the Middle Urals and high levels of economic characters (freezing -up to 2.0 score points; average productivity -1.1-2.2 kg per bush; average fruit weight -3.6-3.8 g; low spinosity of shoots). The varieties Shershnevskiy, Seyanets Lefora, Eridan, Demidovskiy, Stanichniy, Kolobok, Kuybyshevskiy Chernoplodniy showed good adaptability; the maximum freezing was within 2.0 points; the general condition of plants at the end of study -4 points.Under good precipita-tion, the varieties Demidovskiy, Uralskiy Vinograd, Kolobok, Berill, Avangard and Serenada showed genetical-ly inherent large-fruit character (the average berry weight -over 5.0 g; the maximum -6.1-8.2 g).

STUDY OF PINE STRAWBERRY FROST RESISTANCE BY ARTIFICIAL FREEZING METHOD

1970 ◽  
pp. 26-28
Author(s):  
Z E. Ozherelyeva ◽  
M. I. Zubkova ◽  
D. A. Krivushina
Keyword(s):  
Frost Resistance ◽  
Geographical Origin ◽  
Storage Conditions ◽  
Winter Hardiness ◽  
Winter Period ◽  
Irreversible Damage ◽  
Apical Buds ◽  
Russian Research Institute ◽  
Artificial Freezing ◽  
Main Components

The study of the frost resistance was carried out in 2017–2019 on the basis of the Laboratory of Physiology of Fruit Plant Resistance, Russian Research Institute for Fruit Crop Breeding. Strawberry cultivars of different ecological and geographical origin (‘Kokinskaya Rannia’, ‘Rosinka’, ‘Solovushka’, ‘Tzaritza’, ‘Urozhaynaya TzGL’ – Russia; ‘Sara’ – Sweden; ‘Alba’, ‘Marmolada’ – Italy; ‘Korona’, ‘Sonata’ – Holland) were used as experimental material. The frosts resistance of strawberry varieties was studied in the laboratory conditions was used by artificial freezing. A model of strawberry plant selection was developed to determine the main components of winter hardiness. On the basis of preparation of plant samples for modeling of damaging factors of the winter period, storage conditions of experimental plants were developed. Plant hardening and modeling of damaging factors of the winter period were carried out with the additional modification for strawberries. As a result of the artificial freezing, the damage to the tissues of rhizome and apical buds of shoots of strawberry varieties of different ecological and geographical origin were evaluated in early winter period and during thaws in winter. It was determined that the decrease in the temperature to -15°C at the end of November did not cause irreversible damage to the strawberry varieties. The decrease in the temperature to -20°C in early December increased the damage to the studied strawberry varieties. During the winter it was determined that the strawberry response to the thaw increased by the end of the winter period. The decrease in frost resistance is primarily due to the resumption of growth processes under the influence of positive temperatures. As a result of determining the components of winter hardiness, the varieties Solovushaka, Tzaritza (Russia), Sara (Sweden) and Korona (Holland) showed the greatest potential of frost resistance.

CATALASE ACTIVITY OF WHEAT LEAF JUICE IN RELATION TO FROST RESISTANCE

1931 ◽  
Vol 5 (3) ◽  
pp. 333-336 ◽  
Author(s):  
R. Newton ◽  
W. R. Brown
Keyword(s):  
Winter Wheat ◽  
Catalase Activity ◽  
Frost Resistance ◽  
Late Summer ◽  
Winter Hardiness ◽  
Wheat Leaf ◽  
Wheat Leaves ◽  
Leaf Juice

The catalase activity of press-juice of winter wheat leaves collected from the field at any time during the late summer and fall was directly related to the winter hardiness of varieties.

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