Сводный каталог книг

[Text] = Melampsora Pinitorqua (Braun) Rostr.: Nagra resistensbiologiska forsok : научное издание / A. Klingstrom. - Stockholm : Skogshogskolan, 1963. - 23 p. : рис., табл. - (Studia Forestalia Suecica ; № 6). - eng. - Библиогр.: с. 21-22. - 0.07 р.

УДК

06

Аннотация: The book deals with the fungus which was found all over Europe and adjacent parts of Asiatic Russia., in North America. Nine species of Pinus are more or less suffering from Melampsora pinitorqua. 14 clones (with 17-41 grafts) have been examined after spontaneously occurring disease. There were appreciable differences in their resistance to rust

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[Text] = Temperaterens betydelse for pollenbildningen hos lark : монография / G. Eriksson. - Stockholm : Skogshogskolan, 1968. - 131 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 63). - eng. - Библиогр.: с. 127-131. - 1.50 р., 0.25 р.

УДК

06

Аннотация: In the present paper the meiotic development of three larch species was srudied. Emphasis was paid to the analysis of the conditions of importance for beaking the dormancy of the deplotene stage as well as the factors resposible for the initiation of further development from diplotene. On the basis of detailed analysis of meiosis in a few clones 1966-67 as well as in larger number of clones in 1967-68, the following characteristics of the meiotic development of the three species were observed. It was shown that irregularities did not appear until sensitive cells were exposed to low temperatures. All phases of active division during meiosis were believed to be highly sensitive to low temperatures. A direct relationship between the maximum percentage of irregularities during meiosis and pollen sterility was demonstrated. This means that cytological examinations during meiosis could advantageously be performed in order to predict the pollen sterility. With the aid of such tests the crossing programmes in seed orchards should be planned

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[Text] = Melampsora pinitorqua (Braun) Rostr. pa avkommor av Pinus silvestris och i forhallande till tillvaxtreglerande amnen : монография / A. Klingstrom. - Stockholm : Skogshogskolan, 1969. - 76 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 69). - eng. - Библиогр.: с. 71-74. - Б. ц.

УДК

06

Аннотация: Various methods of recording pine twisting rust have been discussed, and attack frequences on 75 progenies of Pinus silvestris plus trees have been noted. Mention has also been made to the possibility of resistance breeding. Acid ether extracts of annual shoots of Pinus silvestris have been examined by various bioassays. Marked differences in the inhibitor effect between extracts from different pine clones have been established. A possible connection between inhibitor content and resistance has been discussed. Reduction in inhibitor content during axial extension and inhibitors in leachates from pine shoots has been connected with Melampsora occurrence. Gel filtration combined with thin layer chromatography has been used for separating tha extract components. Among the inhibitors a number of resin acids have been identified by chemical means

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[Text] = Meiosstudier hos embryosackmoderceller gran normal och desynaptisk gran : научное издание / A. Jonsson. - Stockholm : Skogshogskolan, 1973. - 46 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 105). - eng. - Библиогр.: 23-24. - ISBN 91-38-01612-5 : 1.00 р.

УДК

06

Аннотация: The purpose of the present investigation was to compare the megasporogenesis in a clone of Norway spruce with an ordinary seed set and a clone of a reduced seed set. The early prophase I stages had the same appearance in both clones. During the last part of diplotene there was a separation of the bivalents (i.e. desynapsis occurred) in the clone with the reduced seed set. During metaphase I - anaphase I 97 per cent of the embryo sac mother cells from the desynaptic clone cantained at least one univalent. As a consequence of the occurrence of univalent micronuclei and other irregularities were observed during subsequent stages. Frequently the irregularities caused a degeneration of the cells. Thus, it was proved that the desynapsis was resposble for the poor seed set in the desynaptic clone of Norway spruce.

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[Text] : научное издание / G. Eriksson, A. Jonsson, D. Lindgren. - Stockholm : Skogshogskolan, 1973. - 45 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 110). - eng. - Библиогр.: с. 44-45. - ISBN 91-38-01694-X : 0.90 р.

УДК

06

Аннотация: The study was performed in a clone traial of Picea abies. Based on the data from this investigation it will be possible to estimate the gene contribution of the individual clones to the filial generation. A phenological study of the clones is also of importance for the composition of the second generation seed orchards if they will be built up by clones from the first generation seed orchards. It was pointed out that the effective number of clones in a seed orchard was lower than the real one depending on variation in fertility and the moment of the flowering. Differences concerning male and female flowering also contribute to a reduction of the effective numbers of clones.


Доп.точки доступа:
Jonsson, A.; Lindgren, D.
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[Text] = Froutveckling efter sjalvpollinering och korspollinering av tall, Pinus silvestris L. : научное издание / C.P. Forshell. - Stockholm : Skogshogskolan, 1974. - 37 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 118). - eng. - Библиогр.: с. 36-37. - ISBN 91-38-01972-8 : 0.50 р.

УДК

06

Аннотация: The development of pollen tubes and ovules and the formtion of embryos and endosperm after different types of pollination: self-pollination, cross-pollination and wind-pollination were studied in ten clones of Pinus silvestris. Pollination and fertilization took place in all types of pollination. At a certain stage of development, however, embryos in some seeds began to degenerate. This degeneration was followed by a breaking down of the endosperm and resulted in empty seeds. The percentage of degenerated seeds was highest after self-pollination, considerably lower after wind-pollination. The results indicate that inviable zygotes, homozygous for lethal or sub-lethal genes, are formed after self-pollination and explain the high percentage of empty seeds usually found after this type of pollination. Wind-pollination may to some extent involve self-pollination. No clone was found to be quite self-sterile, but the differences in self-fertility between the clones were rather great.

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[Text] = Tillvaxtskillnader inom helsyskonfamiljer av gran Picea abies (L.) Karst : научное издание / G. Eriksson, V. Gagov. - Stockholm : Skogshogskolan, 1976. - 25 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 130). - eng. - Библиогр.: с. 25. - ISBN 91-38-02753-4 : 0.50 р.

УДК

06

Аннотация: In the present paper the reasons for differences in plant height within full-sib families of Norway spruce are discussed. In many cases it was shown that the duration of the growth period to some extent was responsible for the differences in plant height. If the total plant height is plotted against the percentage growth 4 or 5 weeks before growth termination, clones with good growth rhythm characteristics could conveniently be identified. Therefore this technique is recommended for selection of ortets in nurseries.


Доп.точки доступа:
Gagov, V.
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[Text] = Blomningen i en tallfroplantage : научное издание / A. Jonsson, I. Ekberg, G. Eriksson. - Stockholm : Skogshogskolan, 1976. - 38 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 135). - eng. - Библиогр.: 38. - ISBN 91-38-03190-6 : 1.60 р.

УДК

06

Аннотация: Flowering phenology and flowering frequencies were investigated in clones offSwedish and Finnish origin growing in a pine seed orchard at Langtora. One purpose was to estimate the gene contribution of individual clones to the progeny. The frequencies of femeil and male strobili were estimated in 1973-1975. The onset and duration of both female receptivity and pollen dispersal were recorded. The pollen density in the seed orchard was estimated. Great clonal variation prevailed in the seed orchard with respect to the frequency of female and male flowering as well as the onset and duration of female receptivity and pollen dispersal. A good agreement in flowering frequencies and phenological characteristics of the clones between different years was observed. The calculations of the genetic composition of the progeny revealed that the gene contribution of the analysed clones varied considerably. This was mainly due to differences in the frequency of flowering.


Доп.точки доступа:
Ekberg, I.; Eriksson, G.
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[Text] = Isozymundersokningar i froplantager : научное издание / D. Rudin, D. Lindgren. - Stockholm : Skogshogskolan, 1977. - 23 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 139). - eng. - Библиогр.: с. 22-23. - ISBN 91-38-03497-2 : 1.20 р.

УДК

06

Аннотация: Some applications of the isozyme technique for studies in seed orchards are discussed. The basis of these studies is the opportunity to use clones in the seed orchards which are isozymetically distinct from the others. If a clone in one locus carries one or two alleles unique or rare to the orchard, it may then be possible to trace the contribution of this particular clone to the seed formation. The use of this method in studies on the net effect of open pollination in a seed orchard is pointed out. In the absence of such unique alleles for the estimation of the pollination situation, another method is suggested. This method can be made use of by collecting open-pollinated seeds from a clone and counting plants from these which, by means of the isozyme pattern, show a documented cross-pollination. In this way it is possible to obtain information on the occurrence of selfing. Checking of the isolation technique for controlled crosses is also possible with the isozyme technique.


Доп.точки доступа:
Lindgren, D.
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[Text] = Inverkan av forband och godsling pa utvecklingen av tallympar av fyra olika kloner : научное издание / H.H. Hattemer, E. Andersson, C.O. Tamm. - Stockholm : Skogshogskolan, 1977. - 31 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 141). - eng. - Библиогр.: с. 31. - ISBN 91-38-03734-3 : 1.20 р.

УДК

06

Аннотация: An experiment was made with grafts of four different clones of Scots pine planted in 1963 in poor sandy soil, with two different spacings and with and without an annual supply of fertilizers from 1964 onwards. The nutrient status of the pines was followed by foliar analysis of needles sampled every autumn. Measurements of a great number of traits were made in 1967 and 1969 and subsequent statistical anlyses showed that both clones and treatment had significant effects on tree properties. Fertilizer strongly affected many properties, such as diameter, branch length, and diameter, cone setting and needle length.


Доп.точки доступа:
Andersson, E.; Tamm, C.O.
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[Text] = Variationen mellan kloner och sambandet ursprungstrad klon for olika egenskaper hos tall : научное издание / E. Andersson, H.H. Hattemer. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1978. - 31 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 148). - eng. - Библиогр.: с. 31. - ISBN 91-38-04626-1 : 1.40 р.

УДК

06

Аннотация: Two different approaches of studying the relationships between ortets and ramets were taken. In one experiment, located near Sya, the ramets were planted directly beside the stand where the ortets were growing. In the other experiment, located near Uddeholm, trees from a given area in central Sweden were classified into several phenotypic classes; the field trial containing the ramets should show whether these classes were detectable there. The present paper deals with the relations between ortets and ramets in various measurements of tree dimension, stem form, branch habit and cone onset.


Доп.точки доступа:
Hattemer, H.H.
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[Text] : publication of the Society of Forestry in Finnland. - Helsinki : Finska Forstsamfundet, 1967. - 307 p. : рис., табл. - eng. - fin. - Библиогр. в конце ст. - 5.00 р.

УДК

06

Аннотация: The book deals with sporal regeneration of bracken in Finland in the light of the dimensions and the age of its clones; the correlation between the size of Finnish bracken clones and certain periods of site history; sporal regeneration of ground pine in southern Finland in the light of the dimensions and the age of its clones.

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[Text] : научное издание / V. Pohjonen. - Helsinki : The Society of Forestry in Finland-The Finnish Forest Research Institute, 1991. - 58 p. : рис., табл. - (Acta Forestalia Fennica ; vol. 221). - eng. - Библиогр.: 40-43. - ISSN 0001-5636. - ISBN 951-651-091-4 : 3.00 р.

УДК

06

Аннотация: This study is the selection of suitable exotic and indigenous willow species and clones for practical applications in Finland biomass willow forestry. The selection is to be based on a theoretical background, on the historical record of Finnish research into basket and biomass willows between 1910-1980 and on an analysis of the Finnish biomass willow research of the 1980s including exotic collections, indigenous collections and artificial hybridizations.

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