Библиогр: at the end of papers
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Сводный каталог книг
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Найдено документов в текущей БД: 22
585
P 65
P 65
PINUS CONTORTA from untamed forest to domesticated crop August 24-28,1992, Umea, Sweden
[Текст] : proceedings of a meeting with IUFRO Working Party S2.02/06 "Pinus contorta provenances and breeding" and "Frans Kempe Symposium". rapport 11. SVERIGES LANTBRUKSUNIVERSITET, Inst. for skoglig genetic och vaxtfysiologi / Ed. D. Lindgren ; Swedish University of Agricultural Sciences, Department of Forest Genetics and Plant Physiology. - Umea : Department of forest genetics and plant physiology, 1993. - 416 pp : ill + tables. - Б. ц.
Библиогр: at the end of papers
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ИЛ-ИФ (1)
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Библиогр: at the end of papers
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634.9
E 18
E 18
Ecology and management of Larix Forests: a look ahead
[Текст] : proceedings of an international Symposium Whitefish, Montana, USA October 5-9, 1992 / Compillers: W.C.Schmidt, K.J.McDonald ; USDA Forest Service, Intern. Res. Station. - Ogden : Intermountain Research Station, 1995. - 521 с. : ill. + tables,figures. - (General Technical Report GTR-INT : proceedings of an International Symposium / USDA Forest Service ; 319). - Библиогр: at the end of the parts. - бесплатно р.
Кл.слова (ненормированные):
larch, western larch, Larix occidentalis, ecology, international larch management
Аннотация: This proceedings is the product of an international symposium on the Larix species of North America, Europe, and Asia. Western larch, an important species in the Western United States and Canada, was featured. The symposium included information on ecology, management, silviculture, regeneration processes, growth, wildlife, vegetation succession, silvics, history, genetics, breeding and provenance testing, physiology, fire, insects and desease, and research needs. This proceedings illustrates the importance of Larix in the temperate forests of the Northern Hemisphere
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| УДК |
Кл.слова (ненормированные):
larch, western larch, Larix occidentalis, ecology, international larch management
Аннотация: This proceedings is the product of an international symposium on the Larix species of North America, Europe, and Asia. Western larch, an important species in the Western United States and Canada, was featured. The symposium included information on ecology, management, silviculture, regeneration processes, growth, wildlife, vegetation succession, silvics, history, genetics, breeding and provenance testing, physiology, fire, insects and desease, and research needs. This proceedings illustrates the importance of Larix in the temperate forests of the Northern Hemisphere
Экземпляры всего: 1
ИЛ-ИФ (1)
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634.9
H 75
H 75
Growth of Norway spruce (Picea abies (L) Karst.) provenances in Eastern North America
[Текст] / M. Holst ; Forest Research Branch, Canada. - Ottawa : Department of Forestry Publication, 1963. - 15 с. : табл. - (Department of Forestry Publication / Forest Research Branch ; 1022). - 0.10 р.
Библиогр.: p. 15
Аннотация: In the late 1930's, IUFRO (International Union of Forest Research Organizations) made available good seed of Norway spruce for establishment of provenance trials in eastern North America. Although World War II prevented best use of this material, several provenance experiments were planted. This paper: (1) reviews briefly the results to date of these experiments, (2) mentions several difficulties in growing Norway spruce, and (3) indicates the potential productivity of Norway spruce in various regions
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ИЛ-ИФ (1)
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Библиогр.: p. 15
| УДК |
Аннотация: In the late 1930's, IUFRO (International Union of Forest Research Organizations) made available good seed of Norway spruce for establishment of provenance trials in eastern North America. Although World War II prevented best use of this material, several provenance experiments were planted. This paper: (1) reviews briefly the results to date of these experiments, (2) mentions several difficulties in growing Norway spruce, and (3) indicates the potential productivity of Norway spruce in various regions
Экземпляры всего: 1
ИЛ-ИФ (1)
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634.9
M 84
M 84
Introgressive hybridization in red spruce and black spruce
[Текст] / E.K. Morgenstern, J.L. Farrar ; Forest Research Branch. - Toronto : University of Toronto, 1964. - 46 с. : рис. - (Forest Research Branch Contribution-Technical Report No.4 ; 608). - eng. - Библиогр.: с. 38-46. - 0.15 р.
Аннотация: The hypothesis was tested that red spruce and black spruce are two distinct species which are capable of hybridizing, and that intrigressive hybridization or introgression has occurred since Pleistocene glaciations. Evidence was obtained from the literature regarding F1 hybrids, isolating mechanisms, and the possible evolution of the species. Data are presented concerning morphological variation of seedlings in provenance tests, and of trees in natural stands. Mosr samples from the overlapping range showed a proportion of individuals typical of one species with other individuals showing a degree of resemblance to the other species. In these latter individuals, character assotiation was evident. While the data are not conclusive, they are compatible with the theory of introgression
Доп.точки доступа:
Farrar, J.L.
Экземпляры всего: 1
ИЛ-ИФ (1)
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| УДК |
Аннотация: The hypothesis was tested that red spruce and black spruce are two distinct species which are capable of hybridizing, and that intrigressive hybridization or introgression has occurred since Pleistocene glaciations. Evidence was obtained from the literature regarding F1 hybrids, isolating mechanisms, and the possible evolution of the species. Data are presented concerning morphological variation of seedlings in provenance tests, and of trees in natural stands. Mosr samples from the overlapping range showed a proportion of individuals typical of one species with other individuals showing a degree of resemblance to the other species. In these latter individuals, character assotiation was evident. While the data are not conclusive, they are compatible with the theory of introgression
Доп.точки доступа:
Farrar, J.L.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
634.9/М 64-000574
IUFRO Norway spruce symposium, Stara Lesna, Slovakia August 31-September 7, 1997
[Текст] : abstracts. / Faculty of Forestry, Technical University,Zvolen; IUFRO Working Party S2.02.11 Norway Spruce Provenances and Breeding. - Zvolen : Faculty of Forestry, Technical University, 1997. - 55 с. - Библиогр: В конце книги%List of participants: p.47-55. - free of charge р.
Аннотация: The book deals with gene makers, genetic diversity and differentiation; with adaptive and non-adaptive traits the results of provenance trials; with adaptability of Norway spruce to changing environment; with gene conservation in Norway spruce.
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ИЛ-Иф (1)
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| УДК |
Аннотация: The book deals with gene makers, genetic diversity and differentiation; with adaptive and non-adaptive traits the results of provenance trials; with adaptability of Norway spruce to changing environment; with gene conservation in Norway spruce.
Экземпляры всего: 1
ИЛ-Иф (1)
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585
R 44
R 44
Reports submitted by scientists-participants of the International Symposium on Forest Tree Breeding, Genetics and Seed Production of Coniferous Tree Species (Novosibirsk, June 19-25, 1972) Part I,II
[Текст] / State Committee of Forestry of the Council of Ministers of the USSR; The State Forest Research Institute, Helsinki; The Royal Swedish Academy of Agriculture and Forestry, the Royal College of Forestry, Stockholm. - Pushkino : Всесоюзный научно-исследовательский институт лесоводства и механизации лесного хозяйства, 1972. - Part I - 152; Part II - 180 : figures + tables. - Библиогр: at the end of the reports. - free of charge р.
Аннотация: The present symposium includes the reports on genetics and selection of only coniferous tree species. The coniferous trees are the main forest-formative tree species of the north. At the territory of the USSR there are areals of such forest-formative tree species as pine and spruce, larch, fir, cedar-pine a.o. All these tree species occupy vast territories.
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ИЛ-Иф (1)
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| УДК |
Аннотация: The present symposium includes the reports on genetics and selection of only coniferous tree species. The coniferous trees are the main forest-formative tree species of the north. At the territory of the USSR there are areals of such forest-formative tree species as pine and spruce, larch, fir, cedar-pine a.o. All these tree species occupy vast territories.
Экземпляры всего: 1
ИЛ-Иф (1)
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585
S 81
S 81
Studies on the karyotype analysis in conifers (in Korean lang.)
[Текст] : монография. - Kon Kuk : Kon Kuk Univ., 1995. - 533 с. : figures + tables. - Библиогр: at the end of the chapters. - free of charge р.
Аннотация: The purpose of this study are as follows. First, to clarify the provenance and identification of 52 taxa of conifers in Korea that are of highly economic value and of importance as afforested taxa, were review the existing system of taxonomically classification and the phylogenetic interspecific and intergeneric relationships. Second, to estimate the Gynotype of the next-generation individual by identifying the karyotypical characteristics to each tree species in a sense of forest genetics breeding and tracking the karyotype of parents in crossbreeding. Third, to obtain the basic cytological materials capable of verifying the genetic variation of a new individual created by the tussuculture or genetic engeneering techniques.
Экземпляры всего: 1
ИЛ-Иф (1)
Свободны: ИЛ-Иф (1)
| УДК |
Аннотация: The purpose of this study are as follows. First, to clarify the provenance and identification of 52 taxa of conifers in Korea that are of highly economic value and of importance as afforested taxa, were review the existing system of taxonomically classification and the phylogenetic interspecific and intergeneric relationships. Second, to estimate the Gynotype of the next-generation individual by identifying the karyotypical characteristics to each tree species in a sense of forest genetics breeding and tracking the karyotype of parents in crossbreeding. Third, to obtain the basic cytological materials capable of verifying the genetic variation of a new individual created by the tussuculture or genetic engeneering techniques.
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ИЛ-Иф (1)
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06
S92
S92
Cold damage and plant mortality in experimental provenance plantations with Scots pine in Northern Sweden
[Text] = Koldskador och plantdod i proveniensforsok med tall i Norrland : монография / V. Eiche. - Stockholm : Skoghogskolan, 1966. - 219 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 36). - eng. - Библиогр.: c. 205-212. - 2.20 р., 4.50 р.
Аннотация: The book deals with general information on experimental plantations, weather conditions during the years when severe injury to plants occurred; injury to plants and damage patterns; mortality rates in plants among provenances; cause of damage to plants; cold damage, healing of wounds and mortality-connected phenomena in a chain of biological processes in plants
Экземпляры всего: 2
ИЛ-ИФ (2)
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| УДК |
Аннотация: The book deals with general information on experimental plantations, weather conditions during the years when severe injury to plants occurred; injury to plants and damage patterns; mortality rates in plants among provenances; cause of damage to plants; cold damage, healing of wounds and mortality-connected phenomena in a chain of biological processes in plants
Экземпляры всего: 2
ИЛ-ИФ (2)
Свободны: ИЛ-ИФ (2)
06
S92
S92
Parent-progeny relationship in Scots pine (Pinus silvestris L.): Results from three progeny tests with plus and minus tree progenies in southern Sweden
[Text] : доклад, тезисы доклада / C.E. Ehrenberg. - Stockholm : Skoghogskolan, 1966. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 40). - eng. - Библиогр.: с. 51-52. - Б. ц.
Кл.слова (ненормированные):
material and methods -- characteristics of parent trees -- characteristics of progency
Аннотация: It was found that progenies obtained from crosses between plus trees or even crosses between a plus tree and a minus tree progenies of the same provenance were superior in height growth to minus tree progenies; also the crowns were narrower and the branches had right to intermediate angles. Progenies from parent trees with narrow branch angles had comparably narrow angles, too. Other field experiments which ere established in 1956 and included progenies from the same types of crossing. Measurements were made for the first time in 1960 and repeated during the folowing years
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| УДК |
Кл.слова (ненормированные):
material and methods -- characteristics of parent trees -- characteristics of progency
Аннотация: It was found that progenies obtained from crosses between plus trees or even crosses between a plus tree and a minus tree progenies of the same provenance were superior in height growth to minus tree progenies; also the crowns were narrower and the branches had right to intermediate angles. Progenies from parent trees with narrow branch angles had comparably narrow angles, too. Other field experiments which ere established in 1956 and included progenies from the same types of crossing. Measurements were made for the first time in 1960 and repeated during the folowing years
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ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
06
S92
S92
The phytotron in Stockholm
[Text] = Skogshogskolans fytotronanlaggning : научное издание / D. Wettstein. - Stockholm : Skoghogskolan, 1967. - 23 p. : рис. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 44). - eng. - Библиогр.: с. 8. - 1.04 р., 0.30 р.
Аннотация: These preliminary observations demonstrate that the phytotron will make it possible to determine the various photo- and thermoperiodic systems controlling the growth of different provenances of European conifers. It is quite likely that optimal growth and bud breakage are determined by night temperature in one provenance, by day temperature in others, and by the difference between the day and night temperature in still others as demonstrated for different coniferous tree species of North America. Finally, there may be provenances in which thermoperiodic growth control is absent and only photoperiodism operates. A set of 30 climates differeing with regard to photoperiods and thermoperiods are being used simultaneously in the phytotron for this purpose
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ИЛ-ИФ (2)
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| УДК |
Аннотация: These preliminary observations demonstrate that the phytotron will make it possible to determine the various photo- and thermoperiodic systems controlling the growth of different provenances of European conifers. It is quite likely that optimal growth and bud breakage are determined by night temperature in one provenance, by day temperature in others, and by the difference between the day and night temperature in still others as demonstrated for different coniferous tree species of North America. Finally, there may be provenances in which thermoperiodic growth control is absent and only photoperiodism operates. A set of 30 climates differeing with regard to photoperiods and thermoperiods are being used simultaneously in the phytotron for this purpose
Экземпляры всего: 2
ИЛ-ИФ (2)
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06
S92
S92
A genecological investigation of the annual rhythm of Pinus silvestris L.
[Text] = En genekologisk undersorkning av arsrytmen hos Pinus silvestris L. / M. Hagner. - Stockholm : Skogshogskolan, 1970. - 40 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 80). - eng. - Библиогр.: с. 32-33. - 0.40 р.
Аннотация: Growth rhythm was related to latitude and altitude of seed source but not in the same way as suggested by previous studies. Variation in annual rhythm among seedlings within a provenance was considerable, and the height growth of the single seedling was correlated with rhythm.
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| УДК |
Аннотация: Growth rhythm was related to latitude and altitude of seed source but not in the same way as suggested by previous studies. Variation in annual rhythm among seedlings within a provenance was considerable, and the height growth of the single seedling was correlated with rhythm.
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ИЛ-ИФ (1)
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06
S92
S92
The intra-provenance correlation between annual rhythm and growth of single trees of Pinus silvestris L.
[Text] = Sambandet inom proveniens mallan arsrytm och tillvaxt hos ensklda trad av Pinus silvestris L. : научное издание / M. Hagner. - Stockholm : Skogshogskolan, 1970. - 40 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 82). - eng. - Библиогр.: с. 33-34. - 0.40 р.
Аннотация: It was shown how the regression of height on thythm among trees within a population may be used in tree breeding to assess plasticity, degree of adaptation to the test site, and potential growth capacity in different environments
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ИЛ-ИФ (1)
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| УДК |
Аннотация: It was shown how the regression of height on thythm among trees within a population may be used in tree breeding to assess plasticity, degree of adaptation to the test site, and potential growth capacity in different environments
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
06
S92
S92
Coastal and inland provenance trials in Pinus silvestris L.
[Text] = Proveniensforsok med kust- och inlandstall : научное издание / C.E. Ehrenberg, A. Gustafsson. - Stockholm : Skogshogskolan, 1971. - 36 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 95). - eng. - Библиогр.: с. 22. - 1.00 р.
Аннотация: Stands of Scots pine along the south-eastern coast of Sweden differ from inland stands at the same latitude as regards frequency of trees with broad crowns and crooked stems. In oder to investigate the nature and extent of the differences, a provenance trial was established with material of coastal and inland origin. The experimental design involved testings at two sites (coastal and inland), at two spacings at each site and with two methods of establishment (sowing and planting). Differences between provenances were established as regards germination, survival, occurrence of prolepsis and some blanching characteristic. Inland pines were less well adapted to coastal conditions than were coastal pines to inland environment. Different methods were demonstrated.
Доп.точки доступа:
Gustafsson, A.
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ИЛ-ИФ (1)
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| УДК |
Аннотация: Stands of Scots pine along the south-eastern coast of Sweden differ from inland stands at the same latitude as regards frequency of trees with broad crowns and crooked stems. In oder to investigate the nature and extent of the differences, a provenance trial was established with material of coastal and inland origin. The experimental design involved testings at two sites (coastal and inland), at two spacings at each site and with two methods of establishment (sowing and planting). Differences between provenances were established as regards germination, survival, occurrence of prolepsis and some blanching characteristic. Inland pines were less well adapted to coastal conditions than were coastal pines to inland environment. Different methods were demonstrated.
Доп.точки доступа:
Gustafsson, A.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
06
S92
S92
Variation between and within populations in a provenance trial of Pinus sylvestrus at Nordanas, Lat 64 degrees 19', Long 18 degrees 09', Alt 400 m
[Текст] = Mellan- och inompopulationsvariation i ett proveniensforsok med tall vid Nordanas Lat 64 grad. 19', Long 18 grad. 09', 400 m o h : научное издание / G. Eriksson, S. Andersson, V. Eiche, A. Persson. - Stockholm : Skogshogskolan, 1976. - 46 с. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 133). - eng. - Библиогр.: с. 45-46. - ISBN 91-38-02842-5 : 1.00 р.
Аннотация: Data on survival, stem height, stem volume and yield per hectare from a provenance trial with Scots pine (Pinus sylvestris) at Nordanas, lat 64 grad. 19', long 18 grad. 09', alt 400 m, are presented in this report. Regression analyses were carried out to test the influence of transfer on the parameters studied. For the most important characteristics, yield per hectare and survival, it was found that a transfer by 1-2 latitudes southward will imply an improvement. Since the progenies from individual trees within thepopulations were kept apart the variation within populations could be analysed. This variation was found to be considerable both for survival and height in some of the populations.
Доп.точки доступа:
Eriksson, G.; Andersson, S.; Eiche, V.; Persson, A.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
| УДК |
Аннотация: Data on survival, stem height, stem volume and yield per hectare from a provenance trial with Scots pine (Pinus sylvestris) at Nordanas, lat 64 grad. 19', long 18 grad. 09', alt 400 m, are presented in this report. Regression analyses were carried out to test the influence of transfer on the parameters studied. For the most important characteristics, yield per hectare and survival, it was found that a transfer by 1-2 latitudes southward will imply an improvement. Since the progenies from individual trees within thepopulations were kept apart the variation within populations could be analysed. This variation was found to be considerable both for survival and height in some of the populations.
Доп.точки доступа:
Eriksson, G.; Andersson, S.; Eiche, V.; Persson, A.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
06
S92
S92
Severity index and transfer effects on survival and volume production of Pinus sylvestris in Northern Sweden
[Text] = Bestamning av ett hardhetsindex for norra Sverige med hjalp av proveniensforsok med tall : научное издание / G. Eriksson, S. Andersson, V. Eiche et al. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1980. - 32 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 156). - eng. - Библиогр.: с. 30. - ISBN 91-38-05858-8 : 1.30 р.
Аннотация: By means of results from provenance trials in northern Sweden, a map of severity index for various latitudes and altitudes was drawn up. The severity index is defined as the expected percentage plant mortality rate in the local population during the first 20 years after establishment of the plantation. By combining transfer effects based on data from all trials, a general trend of the transfer effect was calculated. The regression obtained showed that, at constant altitude, each degree of transfer southwards meant an increase of survival of 10.8 percentage units; at constant latitude, every 100 metres of downward transfer implied an increase in survival of 3.0 percentage units.Optimum transfer is defined as the transfer giving maximum volume yield, which equals 70-80 per cent survival.
Доп.точки доступа:
Eriksson, G.; Andersson, S.; Eiche, V.; Ifver, J.; Persson, A.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
| УДК |
Аннотация: By means of results from provenance trials in northern Sweden, a map of severity index for various latitudes and altitudes was drawn up. The severity index is defined as the expected percentage plant mortality rate in the local population during the first 20 years after establishment of the plantation. By combining transfer effects based on data from all trials, a general trend of the transfer effect was calculated. The regression obtained showed that, at constant altitude, each degree of transfer southwards meant an increase of survival of 10.8 percentage units; at constant latitude, every 100 metres of downward transfer implied an increase in survival of 3.0 percentage units.Optimum transfer is defined as the transfer giving maximum volume yield, which equals 70-80 per cent survival.
Доп.точки доступа:
Eriksson, G.; Andersson, S.; Eiche, V.; Ifver, J.; Persson, A.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
06
S92
S92
The effect of provenance and spacing of stem straightness and number of spike knots of Scots pine in South and Central Sweden
[Text] : научное издание / F. Perscher, E. Stahl. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1986. - 12 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 172). - eng. - Библиогр.: с. 12. - ISBN 91-576-2597-2 : 0.40 р.
Аннотация: The aim of this study is to describe the influence of Scots pine provenances and spacing on stem straightness and number of spike knots in South and Central Sweden. Ten provenances trials were studied.
Доп.точки доступа:
Stahl, E.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
| УДК |
Аннотация: The aim of this study is to describe the influence of Scots pine provenances and spacing on stem straightness and number of spike knots in South and Central Sweden. Ten provenances trials were studied.
Доп.точки доступа:
Stahl, E.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
06
S92
S92
Damage to Pinus contorta in northern Sweden with special emphasis on pathogens
[Text] : научное издание / M. Karlman. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1986. - 42 p. : рис., фото.цв. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 176). - eng. - Библиогр.: с. 38-42. - ISBN 91-576-2824-6 : 1.50 р.
Аннотация: In the present study attention has been concentrated on the pathogens of lodgepole pine. The susceptibility to attack by various pathogens of ca. 100 different provenances of Pinus contorta (ca. 25 000 plants) in northern Sweden has been studied over periods of three to nine years. Due to the design of trials, only a small number of Scots pine provenances were included.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
| УДК |
Аннотация: In the present study attention has been concentrated on the pathogens of lodgepole pine. The susceptibility to attack by various pathogens of ca. 100 different provenances of Pinus contorta (ca. 25 000 plants) in northern Sweden has been studied over periods of three to nine years. Due to the design of trials, only a small number of Scots pine provenances were included.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
06
S92
S92
Wood quality and volume production in four 24-year-old provenance trials with Pinus contorta
[Text] : научное издание / E. Stahl, A. Persson . - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1988. - 20 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 179). - eng. - Библиогр.: с. 16-17. - ISBN 91-576-3352-5 : 1.00 р.
Аннотация: The aim of the present study is to elucidate: how the production and quality of a well defined provenance varies with locality in Sweden; the variation between provenances at the same locality; differences between Pinus contorta provenances and Pinus sylvestris of local origin.
Доп.точки доступа:
Persson , A.
Экземпляры всего: 1
ИЛ-ИФ (1)
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| УДК |
Аннотация: The aim of the present study is to elucidate: how the production and quality of a well defined provenance varies with locality in Sweden; the variation between provenances at the same locality; differences between Pinus contorta provenances and Pinus sylvestris of local origin.
Доп.точки доступа:
Persson , A.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
06
S92
S92
Transfer effects and variations in basic density and tracheid length of Pinus sylvestris L. populations
[Text] : научное издание / E.G. Stahl. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1988. - 15 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 180). - eng. - Библиогр. в конце ст. - ISBN 91-576-3480-7 : 2.00 р.
Кл.слова (ненормированные):
basic density -- variation -- tracheid length -- transfer -- spacing -- provenance
Аннотация: The aim of this study is to describe the magnitude and sources of provenances variation in wood density and tracheid length in Sweden. The study indicates that changes in forest management and forest tree breeding are needed in order to increase basic density and fibre length. Basic density and tracheid length were assessed in 67 provenances from one or more of 18 provenance traials at the age of 30 years. From each provenance and trial 10 trees were sampled from a 1.25 metre spacing and 10 trees from 2.0 metre spacing whenever possible. Assessments were made at growth rings five and ten respectively from the bark for basic density and at growth ring five from the bark for tracheid length.
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ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
| УДК |
Кл.слова (ненормированные):
basic density -- variation -- tracheid length -- transfer -- spacing -- provenance
Аннотация: The aim of this study is to describe the magnitude and sources of provenances variation in wood density and tracheid length in Sweden. The study indicates that changes in forest management and forest tree breeding are needed in order to increase basic density and fibre length. Basic density and tracheid length were assessed in 67 provenances from one or more of 18 provenance traials at the age of 30 years. From each provenance and trial 10 trees were sampled from a 1.25 metre spacing and 10 trees from 2.0 metre spacing whenever possible. Assessments were made at growth rings five and ten respectively from the bark for basic density and at growth ring five from the bark for tracheid length.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
06
S92
S92
Effect of provenance and spacing on stem straightness and number of stems with spike knots in Pinus sylvestris L.- Northern Sweden and countrywide models
[Text] : научное издание / E.G. Stahl, B. Persson, F. Prescher. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1990. - 16 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 184). - eng. - Библиогр. в конце ст. - ISBN 91-576-4345-8 : 1.60 р.
Аннотация: The study is based on a series of trials of which the southern trials were earlier analysed. This makes it possible to compare the present results wth those of the previous study. The general models for geographical variation indicate that the highest nimber of straight stems without spike knots may be found between latitudes 58 degrees and 65 degrees N and altitudes below 250 m.
Доп.точки доступа:
Persson, B.; Prescher, F.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)
| УДК |
Аннотация: The study is based on a series of trials of which the southern trials were earlier analysed. This makes it possible to compare the present results wth those of the previous study. The general models for geographical variation indicate that the highest nimber of straight stems without spike knots may be found between latitudes 58 degrees and 65 degrees N and altitudes below 250 m.
Доп.точки доступа:
Persson, B.; Prescher, F.
Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)