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634.9
V29

    Variability and ecology of Siberian larch species
[Текст] : монография / A.P. Abaimov, J.A. Lesinski, O. Martinsson, L.I. Milyutin ; Swedish University of Agricultural Sciences Department of Silviculture. - Umea : Swedish Univ. of Agr. Sci. Department of Silviculture, 1998. - 123 с. : рис., табл. - (Swedish University of Agricultural Sciences, Department of Silviculture Reports, ISSN 0348-8969 ; 43). - eng. - Библиогр.: с. 106-123. - Б. ц.
УДК

Кл.слова (ненормированные):
larch -- variability -- hybridization -- distribution

Аннотация: There is a growing interest in Siberian larch species among researchers and practicioners from abroad, mainly due to their fast growth and excellent wood properties. Some attempts of introducing Siberian larch species as commercial plantations have already been initiated in western countries. However, the knowledge of botanical, ecological and silvicultural features of Siberian larch species is rather poor outside of Russia. Because of its economic importance for Russian forestry the Siberian larch species have been comprehensively studied for many years and many papers as well as a number of monographs have been published, most of them in Russian. The large Russian expertise concerning regionalisation of seed sources, seed crop and quality, seed orchards, seedling production in nurseries and silvicultural practices in commercial plantations beyond their range of natural distribution is presented in this report. May it support foreign foresters in their efforts to enlarge use of Siberian larch species.


Доп.точки доступа:
Abaimov, A.P.; Lesinski, J.A.; Martinsson, O.; Milyutin, L.I.
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634.9
B 84

    Early development of white spruce as related to planting method and plantin g stock height
[Текст] / L.G. Brace ; Forest Research Branch, Department of Forestry, Canada. - Ottawa : Minister of Forestry, 1964. - 15 с. : tables. - (Department of Forestry Publicaion / Department of Forestry, Canada, Forest Research Branch ; 1049). - Библиогр: p. 15. - 0-10 р.
УДК

Кл.слова (ненормированные):
white spruce% growth%planting%method%height

Аннотация: After nine growing seaesons no practical difference in survival and groth of white spruce could be attributed to method of planting in a test of two planting methods that dispose the seedling roots in a horizontal plane close to the soil surface and a conventional one that places the roots in a horizontal plane close to the soil surface and a conventional one that places the roots vertically. Growth and variability in height were found to be related to height of planting stock. Planting stock less than 0.5 feet tall grew poorly on the planting site studied. Research into improved culling and grading procedures for size and quality of spruce planting stock is suggested.

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58
S54

    Translocation of the products of photosynthesis to roots of pine seedlings
[Text] : научное издание / T. Shiroya et al., // Canadian Journal of Botany. - 1962. - Vol.: 40. - С. 1125-1135 : табл. - Библиогр.: с. 1135
УДК

Кл.слова (ненормированные):
light, darkness, extracts

Аннотация: Pinus strobus or P. resinosa seedlings, 2 or 3 years old, were illuminated in a closed chamber for 1 hour in the presence of C14O2. This was followed by various periods up to 24 hours under different conditions of light and darkness. Then each seedling was divided into its shoot, stem, and roots, and these were extracted separately with 80% ethanol. The extracts were resolved first on resins into sugar, amino acid, and organic acid fractions and then resolved further by paper chromatography. The C14 content of various fractions and the eluted compounds was determined by plating and counting their aliquots. Ethanol-insoluble residue was oxidized and counted as BaC14O3. 8 hours after administration of the C14O2, 91 to 94% of the total C 14 was found in the ethanol-soluble fractions of shoot, stem, or root. In the shoots sugars were found to represent more than 95% of the ethanol-soluble photosynthate, with sucrose forming three-quarters of it. In stem and roots sucrose represented from 75 to 94% of the translocated photosynthate. Raffinose, glucose, and fructose were present in both stem and root.

06
S92

    Om froproduktion, frotradsval och plantuppslag i forsok med naturlig foryngring
[Text] = Yield of seed, choice of seed trees, and seedling establishment in experiments with natural regeneration : доклад, тезисы доклада / S. Hagner. - Stockholm : Skogshogskolan, 1965. - 43 с. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 27). - swe. - Библиогр.: с. 41. - 0.20 р.
УДК

Кл.слова (ненормированные):
experiment -- scarification -- results

Аннотация: This work reports on some results from an investigation of the permanent experiments with shelterwood stands carried on by the department of regeneration. The results concern: yield of seed, importance of seed tree choice for the intensity of seeding, establishment of seedlings, relationship between the amount of seed shed and the number of seelings established

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06
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.
УДК

Кл.слова (ненормированные):
climatic reason -- provenances

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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06
S92

    Water relations of seedlings of Scots pine grown in peat as a function of soil water potential and soil temperature
[Text] : научное издание / G. Orlander, K. Due. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1986. - 13 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 175). - eng. - Библиогр.: с. 12-13. - ISBN 91-576-2708-8 : 0.50 р.
УДК

Кл.слова (ненормированные):
soil water potential -- soil temperature -- conductance -- needle

Аннотация: Seedling of Pinus sylvestris, grown in low humified peat, were exposed to different soil water potentials and soil temperatures. The water potential and temperature were controlled by the use of a semi-permeable membrane system, and the seedlings were placed in a growth chamber during the experiments. Needle water potential, needle conductance and plant water conductance were measured on the seedlings. When the soil water potential decreased to-0.1 MPa, the needle conductance decreased to about 25% of the maximum whereas the plant water conductance decreased even more. The results are discussed in relation to resistance to water flow in the soil and in the root-soil interface. Soil temperature did not markedly change the relative responce of needle conductance and plant water conductance and soil water potential. Water uptake was considerably lower at lower soil temperatures.


Доп.точки доступа:
Due, K.
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06
S92

    Provenance variation in early growth and development pf Picea mariana (Mill) B.S.P.
[Text] : научное издание / E.G. Stahl, B. Persson . - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1992. - 17 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 187). - eng. - Библиогр. в конце ст. - ISBN 91-576-4591-4 : 2.00 р.
УДК

Кл.слова (ненормированные):
clinal variation -- phenology -- shoot: root ratio

Аннотация: The objectives of this study are as follows: 1.To describe the differences in seedling morphology and phenology existing between provenances of Black spruce. 2. To compare Black spruce with Norway spruce. 3. To elucidate the juvenile characters of value in indentifying superior provenances of Black spruce


Доп.точки доступа:
Persson , B.
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06
S92

    Site preparation of abandoned fields and early establishment of naturally and direct-seeded birch in Sweden
[Text] : научное издание / A. Karlsson. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1996. - 25 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 199). - eng. - Библиогр. в конце ст. - ISBN 91-576-5152-3 : 1000.00 р.
УДК

Кл.слова (ненормированные):
afforestation -- arable land -- seedling -- soil preparation

Аннотация: Field experiments were carried out at four sites in Sweden to investigate the possibility of establishing downy birch and silver birch on abandoned fields by natural regeneration, direct seeding or both. The effects of six soil preparation methods on the vegetation cover, seedling survival, dominant seedling height and seedling establishment were studied up to four years after seedling emergence.Seedling survival and establishment without preparation, and with rotary cultivation, were close to nil, while the other soil preparation methods generally were more effective. Best seedling survival and establishment were obtained on seedbeds created by removing topsoil or by transposing it by deep ploughing or inversion. Application of peat litter to the seedbed promoted seedling establishment.

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06
F54

    Rauduskoivun versolaikut taimitarhalla
[Text] = Stem spotting of birch (Betula pendula) in nurseries : научное издание / R.-L. Petaisto. - Helsinki : Metsantutkimuslaitos, 1983. - 42 с. : табл., рис. - (Folia Forestalia ; № 544). - fin. - Библиогр.: с. 9. - ISSN 0015-5543. - ISBN 951-40-0602-X : Б. ц.
УДК

Кл.слова (ненормированные):
leader tips -- canker -- microbial isolation

Аннотация: The degree of spot and canker formation and death of leader tips on 2-3 years old birch seedling lots in 14 nurseries in spring 1980 were examined in this study. In addition, the formation of spots was studied in winter storage and artificial infection experiments.

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06
F54

    Luontaisen ja istutetun mannyntaimen kestavyys tukkimiehentaita vastaan
[Text] = Resistance of naturally regenerated and nursery-raised Scots pine seedlings to the large pine weevil, Hylobius abietis (Coleoptera, Curculionidae) : научное издание / J. Selander, A. Immonen, P. Raukko. - Helsinki : Metsantutkimuslaitos, 1990. - 19 с. : рис., табл. - (Folia Forestalia ; № 766). - fin. - Библиогр.: с. 13-15. - ISSN 0015-5543. - ISBN 951-40-1140-6 : 5.00 р.
УДК

Кл.слова (ненормированные):
plant resistance -- natural regeneration -- reforestation

Аннотация: The susceptibility of naturally regenerated pine seedlings and nursery-grown, planted seedlings to attack by the large pine weevil was compared in a 3 year pairwise field trial. No insecticides were used. The risk of attack and seedling mortality were calculated using a logistic model.


Доп.точки доступа:
Immonen, A.; Raukko, P.
Экземпляры всего: 2
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634
B27

    Zum Anbau der Schwarznuss (Juglans nigra L.) in den Rheiauen
[Text] : монография / N. Bartsch. - Frankfurt am Main : J.D. Sauerlander's Verlag, 1989. - 90 s. : рис., табл. - (Schriften aus der Forstlichen Fakultat der Universitat Gottingen und der Niedersachsischen Forstlichen Versuchanstalt, ISSN 0344-5666 ; Bd. 95). - ger. - Библиогр.: с. 83-90. - ISBN 3-7939-5095-6 : 5.00 р.
УДК

Кл.слова (ненормированные):
Systematische Stellung -- Morphologische Merkmale -- Klima -- Boden

Аннотация: The young growth of black walnut was investigated in six 8-32-year-old stands on the Rhine plain. Until up to the age of 10 years the number of plants decreases dramatically (up to 80%). There is a clear relationship between the number of stems and the diameter. Up to an age of 8 years the average height increment is about 1 m, up to an age of 32 years this decreases to 0.75 m. Compared to seed, set plants are retarded in their height development during the seedling stage. Self pruning was not greatly stimulated by a lower-story of beech and maple. Cleaning and thinning of black walnut should be carried out earlier than by English oak. Only then can the crown of black walnut be provided with sufficient space at all ages.

Экземпляры всего: 1
ИЛ-ИФ (1)
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634.1
W68

    Die Wildbirne, Pyrus pyraster (L.) BURGSD.: Tagung zum Baum des Jahres am 17. und 18.3.1998 in Gottingen
[Text] : сборник научных трудов / Zsgest. von J. Kleinschmit u.a. - Frankfurt am Main : J.D. Sauerlander's Verlag, 1998. - 128 s. : рис., табл. - (Schriften aus der Forstlichen Fakultat der Universitat Gottingen und der Niedersachsischen Forstlichen Versuchanstalt, ISSN 0344-5666 ; Bd. 125). - ger. - Библиогр.: с. 117-128. - ISBN 3-7939-5125-1 : 50.00 р.
УДК

Кл.слова (ненормированные):
Holz -- Woldformen

Аннотация: The young growth of black walnut was investigated in six 8-32-year-old stands on the Rhine plain. Until up to the age of 10 years the number of plants decreases dramatically (up to 80%). There is a clear relationship between the number of stems and the diameter. Up to an age of 8 years the average height increment is about 1 m, up to an age of 32 years this decreases to 0.75 m. Compared to seed, set plants are retarded in their height development during the seedling stage. Self pruning was not greatly stimulated by a lower-story of beech and maple. Cleaning and thinning of black walnut should be carried out earlier than by English oak. Only then can the crown of black walnut be provided with sufficient space at all ages.

Экземпляры всего: 1
ИЛ-ИФ (1)
Свободны: ИЛ-ИФ (1)