scholarly journals Progeny testing of Pinus sylvestris L. of seed orchard in different environmental conditions

2021 ◽  
Vol 33 (1) ◽  
pp. 1-14
Author(s):  
Olga Mazhula ◽  
Yaroslav Fuchylo ◽  
Yuriy Hayda ◽  
Mykola Kharytonov ◽  
Svitlana Matkovcka
Keyword(s):  
Scots Pine ◽  
Environmental Conditions ◽  
Seed Orchard ◽  
Progeny Test ◽  
Necessary Condition ◽  
Soil Conditions ◽  
Forest Steppe ◽  
Progeny Testing ◽  
Analysis Of Results ◽  
Positive Effect

Evaluation of the   progeny test of plus trees of Scots pine - a necessary condition for determining the prospects the use of improved seeds in different environmental conditions. The paper presents the results of the study of the progeny test of groups of clones of plus trees of Scots pine selected according to certain characteristics in Northern Steppe and South Forest-Steppe of Ukraine. Analysis of results showed: a significant improvement in the growth rates of the all testing progenies of seed orchard in the better climatic and soil conditions of South Forest-Steppe between the ages of 3 and 10 years. At the same time 4 out of 5 studied progenies worsened their growth indicators relative to local control at the age of 3 to 26 years in less optimal climatic and soil conditions of Northern Steppe. The leader in the steppe conditions was the progeny of a fraction of three clones, which had the highest seed productivity. The selection of the fastest growing clones and the rejection of the slowest growing ones had a positive effect on the growth of progenies of seed orchards at both test points.

scholarly journals Below-ground hydraulic conductance is a function of environmental conditions and tree size in Scots pine

2007 ◽  
Vol 21 (6) ◽  
pp. 1072-1083 ◽  
Author(s):  
J. MARTÍNEZ-VILALTA ◽  
E. KORAKAKI ◽  
D. VANDERKLEIN ◽  
M. MENCUCCINI
Keyword(s):  
Scots Pine ◽  
Environmental Conditions ◽  
Hydraulic Conductance ◽  
Tree Size ◽  
Below Ground

Radial increment dynamics of Scots pine (Pinus sylvestris L.) as an indicator of hydrothermal regime of the Western Transbaikalia forest steppe

2017 ◽  
Vol 10 (5) ◽  
pp. 476-487 ◽  
Author(s):  
A. V. Demina ◽  
L. V. Belokopytova ◽  
S. G. Andreev ◽  
T. V. Kostyakova ◽  
E. A. Babushkina
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Forest Steppe ◽  
Radial Increment ◽  
Western Transbaikalia ◽  
Hydrothermal Regime

SOME EFFECTS OF DIETARY THIOURACIL AND DIETARY IODINE SUPPLEMENTATION ON THE RESPONSES OF THE IMMATURE PULLET TO ESTROGEN

1961 ◽  
Vol 39 (9) ◽  
pp. 1441-1450
Author(s):  
R. H. Common ◽  
A. J. Moo-Young ◽  
K. A. McCully
Keyword(s):  
Crude Protein ◽  
Statistical Significance ◽  
Liver Weight ◽  
Estradiol Benzoate ◽  
Necessary Condition ◽  
Ovary Weight ◽  
Total Liver ◽  
Iodine Supplementation ◽  
Resultant Increase ◽  
Positive Effect

Sexually immature pullets were given 1.5 mg estradiol benzoate by intramuscular injection on alternate days over a 14-day period. The resultant increase of oviduct weight was enhanced by 70% when 1% thiouracil was included in the diet over the period of the injections. Supplementation of the diet with 1.0 mg iodine per lb did not modify this effect of dietary thiouracil on the response of oviduct to estrogen. Consideration of this result in conjunction with previous results shows that a necessary condition for this positive effect of thiouracil on response of the oviduct to estrogen is administration of the estrogen on alternate days.The following effects of thiouracil on the estrogenized pullets also attained statistical significance: decrease of estrogen-induced hypercalcemia; increase of ovary weight, liver weight, and total liver crude protein and fat; increase of kidney weight and percentage dry matter in kidney.The iodine supplement increased ovary weight significantly in the unestrogenized pullets but not in the estrogenized pullets. The iodine supplement also tended to increase total liver crude protein in the estrogenized pullets but not in the unestrogenized pullets.

scholarly journals Highly Productive Pine Forests in a Changing Climate

2021 ◽  
pp. 9-23
Author(s):  
Nina F. Kuznetsova ◽  
◽  
Elena S. Klushevskaya ◽  
Elena Yu. Amineva
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Genetic Material ◽  
Weather Conditions ◽  
Test Site ◽  
Pine Forests ◽  
Soil Drought ◽  
Forest Steppe ◽  
Changing Climate ◽  
Vital State

Forest steppe of the Central Chernozem Region (CCR) of Russia belongs to the zone of highly productive pine forests. In 2015, for the first time a partial destabilization of Scots pine (Pinus sylvestris L.) was recorded within the territory of the CCR. It affected the population, organism and cellular levels of Scots pine (Pinus sylvestris L.). The destabilization was caused by the 8-year heatwave of 2007–2014 followed by a sharp drop in the water table and four severe droughts (2007, 2010, 2012, and 2014). The analysis was carried out on two sites of pine forest plantations growing in the environmentally sound region: the Stupino test site (Voronezh region, typical plantation for the CCR) and the Usman site (Lipetsk region, lands with elevated groundwater level). The results of morphological, cytogenetic and biochemical studies of model trees of the Stupino test site during the following periods are presented: 4 optimal years in terms of weather conditions, 2014 drought year and 2015 destabilization year. It was found that prolonged hydrothermal stress resulted in the transition of pine from the basic equilibrium state to a slightly nonequilibrium state. The trigger mechanism for changing their vital state was a severe autumn soil drought in 2014, after which the plants became weakened right before winter. A decrease in cone bioproductivity by the traits of seed fullness and the total number of seeds per cone, a change in population sampling structure, an increase in the number of mitosis pathologies, and an increase in proline content in needles were observed despite optimal weather conditions in 2015. The recovery of species was studied for three subsequent optimal years on the example of the Stupino and Usman populations. Experimental data indicate that the processes of vital state normalization involve profound changes in metabolism and require certain energy expenditures. It took the Stupino population longer to return to the regional norm, which indicates a different depth of destabilization of the tree genetic material of the studied populations. For citation: Kuznetsova N.F., Klushevskaya E.S, Amineva E.Yu. Highly Productive Pine Forests in a Changing Climate. Lesnoy Zhurnal [Russian Forestry Journal], 2021, no. 6, pp. 9–23. DOI: 10.37482/0536-1036-2021-6-9-23

scholarly journals Föhrenverjüngung: Plastizität und Akklimatisation in einem trockeneren Klima

2018 ◽  
Vol 169 (5) ◽  
pp. 269-278
Author(s):  
Barbara Moser ◽  
Christoph Bachofen ◽  
Thomas Wohlgemuth
Keyword(s):  
Scots Pine ◽  
Natural Regeneration ◽  
Common Garden ◽  
Forest Steppe ◽  
Short Time Scale ◽  
Summer Drought ◽  
Spring Precipitation ◽  
Pine Regeneration ◽  
A Minor ◽  
Rhone Valley

Pine regeneration: plasticity and acclimation in a dryer climate Increasing summer drought might limit the natural regeneration of Scots pine stands at low elevations of the Rhone valley. Common garden experiments at the forest-steppe ecotone have shown that emergence and establishment of Scots pine primarily depend on spring precipitation and, to a minor degree, on summer drought and rising temperatures. Scots pine seedlings acclimated rapidly to drought periods by favouring root to shoot growth. In the second year, the saplings were already adapted to drought so that most of them survived an extended spring and summer drought, as recorded at Sion twelve times during the last 154 years. Only an extreme summer drought – no water from June to September – killed 14.7% of the Scots pine saplings. Surprisingly, they were even able to acclimate to such extreme drought events: after the same extreme summer drought in the third year, mortality dropped below 5%. In general, the Scots pine was very plastic, i.e. seedlings and saplings changed their phenotype depending on environmental conditions. But we also found genetic adaptation: Scots pine originating from regions with pronounced summer drought, including populations from lower elevations in the Rhone valley, produced more biomass than those from moister regions in all treatment combinations. Black pine reacted similarly to the treatments like Scots pine, but it grew faster and more saplings survived the first extreme summer drought. These results show that Scots pine from low elevations of the Rhone valley is one of the most drought-tolerant provenances in Europe. Thanks to its high phenotypic plasticity and the ability of seedlings and saplings to acclimate to drought on a short time scale, natural regeneration of Scot pine at low elevations of the Rhone valley is likely to occur also under future conditions, but maybe less frequent than today.

scholarly journals Procedure for managing large-scale progeny test data: a case study of Scots pine in Finland

Silva Fennica ◽  
2002 ◽  
Vol 36 (2) ◽  
Author(s):  
Martti Venäläinen ◽  
Seppo Ruotsalainen
Keyword(s):  
Scots Pine ◽  
Test Data ◽  
Large Scale ◽  
Progeny Test

scholarly journals Child programs infusion of the sportlife club system children's activity

2021 ◽  
pp. 154-156
Author(s):  
Maksym Yachnyk ◽  
Olena Zendyk ◽  
Iurii Iachniuk ◽  
Iryna Iachniuk ◽  
Sergii Gorodynskyi
Keyword(s):  
Environmental Conditions ◽  
Healthy Child ◽  
The Body ◽  
Necessary Condition ◽  
Exercise Participation ◽  
Endurance Strength ◽  
Daily Exercise ◽  
Physical Form ◽  
Close Relationship ◽  
Physical Shape

Modern life is quite comfortable. Less and less physical effort a human spends to meet every day needs. A sedentary lifestyle is becoming habitual for many, but it is important to remember that a young body needs exercise to grow and develop. In order to maintain good physical shape, you should do exercise. As a result, physical qualities develop: endurance, strength, agility, speed, flexibility. First of all physical activity improves not only the physical form, but also promotes the harmonious development of the child, strengthening his health. It is easier to raise a healthy child it quickly acquires the necessary skills and abilities, better adapts to changes in environmental conditions. It is easier to raise a healthy child, which quickly acquires the necessary skills and abilities, better adapts to changes in environmental conditions. An active healthy child is always strong and cheerful. Insufficient motor activity, vice versa, leads to weakness, weakens the body and its resistance to various diseases. Hypodynamia has an negatively affects mental development, reduces efficiency. This indicates a close relationship between mental and physical development. Daily exercise, participation in moving games; long walks are necessary condition for creating an optimal motor that meets the biological needs of the child's body.

scholarly journals Podilya environmental conditions variety as a tourism development stimulation factor

2014 ◽  
pp. 237-244
Author(s):  
A. Kizun
Keyword(s):  
Key Words ◽  
Environmental Conditions ◽  
Tourism Development ◽  
Forest Steppe ◽  
Multiple Functions ◽  
Regional Characteristics ◽  
Spiritual Recovery

Regional characteristics and diversity of Podiliya environmental conditions are considered, and there is shown that they were favorable to the settlement processes and performed multiple functions at all stages of history, one of which is the ability to use environmental conditions diversity as a source of physical and spiritual recovery. Special attention is given to the Podiliya landscapes formation, as one of the attraction factors. Key words: environmental conditions, landscape, tourism, recreation, region, forest-steppe.

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