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001-es BibID:BIBFORM091032
Első szerző:Rédei Károly (erdőmérnök)
Cím:Improvement of black locust (Robinia pseudoacacia L.) growing under marginal site conditions in Hungary: case studies / Rédei Károly, Keserű Zsolt, Csiha Imre, Rásó János, Bakti Beatrix, Takács Marianna
Dátum:2018
ISSN:1587-1282
Megjegyzések:n Hungary, black locust (Robinia pseudoacacia L.) is considered as an important exotic stand-forming tree species growing mostly under unfavourable ecological conditions for forest management. Due to climate change effects, its importance is increasing in many other countries, too. As a result of a selection programme, new black locust clones were tested in clone trials. Juvenile growth of 12 micropropagated black locust clones in two plots series established at different dates were evaluated in central Hungary under marginal site conditions. At age of 7 the clone R. p. ♭Bácska' (♭KH 56A2/5'), at age of 10 the clones R.p. ♭Homoki' (♭MB17D3/4') and ♭PV201E2/4' appeared to be especially promising for mass production. Based on the data obtained from the performed trials, it can also be concluded that tissue culture can be considered as a suitable tool for propagating superior individuals and offers new prospects for the rapid cloning of selected genotypes used for plantation forestry.
Tárgyszavak:Agrártudományok Erdészeti és vadgazdálkodási tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
black locust (Robinia pseudoacacia L.)
clone trials
juvenile growth
micropropagation
Megjelenés:Agrártudományi közlemények = Acta agraria Debreceniensis. - 74 (2018), p. 129-133. -
További szerzők:Keserű Zsolt (agrár) Csiha Imre (agrár) Rásó János (1970-) (okleveles biológus) Bakti Beatrix Takács Marianna (1991-) (állattenyésztés)
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2.

001-es BibID:BIBFORM090074
Első szerző:Rédei Károly (erdőmérnök)
Cím:Ecology and Management of Black Walnut (Juglans nigra L.) in Hungary / Károly Rédei, Marianna Takács, Tamás Kiss, Zsolt Keserű
Dátum:2019
ISSN:1847-6481 1849-0891
Megjegyzések:Background and Purpose: Black walnut (Juglans nigra L.) was one of the first forest tree species introduced and acclimated from North America to Europe in the 17th century. Although native to North America, black walnut is now naturalized and widely planted throughout Europe. In Hungary, this species has played an important role in forest management. Black walnut can grow on various sites, but careful site selection and well-planned management practices are needed to produce successful plantations. Due to the increasing interest in black walnut growing in many countries this study complied with the aim of giving a summary on the base of research and improvement connected with the species over the past decades. Materials and Methods: Black walnut produces a well-closing, favourably differentiated stand structure in consequence of the great genetic diversity of single trees. It utilizes well the leaks of the tending cuttings. In this manner, because of its quick height growth, the systematic, individual selective method can be favourably combined with more frequent stem number reduction. The objective of tending should be to produce a high proportion of good quality saw logs from stands of yield class I, II, III and IV, and some other smaller-dimension industrial wood from stands of yield class V and VI. Conclusions: In Hungary, black walnut is one of the most valuable exotic tree species, mainly because of its wood excessively used in furniture industry. Black walnut is used in furniture industry both as solid wood and veneer. This species is among the most expensive furniture woods in the world due to its appealing surface figure and colour. Its wood is also used for making musical instruments, turned and carved ornaments, statues and marquetry. Black walnut stands are to be important in carbon sequestration, soil stabilization, and water quality protection as well.
Tárgyszavak:Műszaki tudományok Bio-, környezet- és vegyészmérnöki tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:South-East European Forestry. - 10 : 2 (2019), p. 187-191. -
További szerzők:Takács Marianna (1991-) (állattenyésztés) Kiss Tamás Keserű Zsolt (agrár)
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3.

001-es BibID:BIBFORM079273
Első szerző:Rédei Károly (erdőmérnök)
Cím:Yield and crown structure characteristics in a black locust (Robinia pseudoacacia L.) stand: A case study : Short Communication / Rédei Károly, Bakti Beatrix, Kiss Tamás, Takács Marianna, Keserű Zsolt
Dátum:2018
ISSN:1212-4834 1805-935X
Megjegyzések:The paper provides the results of a detailed analysis of timber volume and the most important crown variables of black locust (Robinia pseudoacacia Linnaeus) based on an experimental plot in southern Hungary. At the age of 20 years the crop trees belonged to different height classes. If the volume of the mean tree from height class I is considered as 100%, the volume of the mean tree of class II is 44.0%, and the mean tree of class III is only 30.3%. In case of timber volume per 1 m2 crown surface, the values are 72.9 and 61.7%. The DBH of trees showed a positive linear correlation with crown diameter (r = 0.942). Additionally, there were also positive linear relationships between crown diameter and volume (r = 0.901), between crown length and volume (r = 0.721) as well as tree height and crown length (r = 0.661). The variation of crown indices is height even within the same stand and indicates the importance of following a selective thinning operation method.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
forest regeneration
crown indices
crop tree selection
volume production
non-native tree species
Megjelenés:Journal of Forest Science. - 64 : 2 (2018), p. 96-100. -
További szerzők:Bakti Beatrix Kiss Tamás Takács Marianna (1991-) (állattenyésztés) Keserű Zsolt (agrár)
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