Zobrazeno 1 - 10
of 44
pro vyhledávání: '"J. Kobliha"'
Publikováno v:
Journal of Forest Science, Vol 59, Iss 11, Pp 424-435 (2013)
Productivity of individual European larch provenances was evaluated on the basis of height and diameter growth and volume production at the age of 40 years. This work was focused on identifying differences among European larch provenances using a gro
Externí odkaz:
https://doaj.org/article/f6e12fb5d4ef4a80a658b5e9c73c6381
Publikováno v:
Journal of Forest Science, Vol 59, Iss 2, Pp 64-71 (2013)
Fraser fir (Abies fraseri) Christmas tree plantations in North Carolina are infested by root rot caused by Phytophthora cinnamomi. This disease kills almost 100% of Fraser fir material and leaves the soil permanently infested. Control crossings of Me
Externí odkaz:
https://doaj.org/article/d3a4031f2bcf4e2f9a56aaf47f677110
Publikováno v:
Journal of Forest Science, Vol 57, Iss 3, Pp 114-122 (2011)
This Czech-American research collaboration is investigating interspecific hybridization among various fir species produced via control pollination. Its aim is the development of newly bred material for specific needs of Christmas tree production. The
Externí odkaz:
https://doaj.org/article/fa1fdfb45a944b6090fec7d60817d834
Publikováno v:
Journal of Forest Science, Vol 56, Iss 8, Pp 348-352 (2010)
The present paper evaluates the height, diameter and stem volume of parental tree progenies. These Norway spruce progenies are compared with the control estimated from tables. The control was overperformed in all measured growth parameters. Heights o
Externí odkaz:
https://doaj.org/article/a9d510e41edf4ee49593d5f9bb7f0f66
Autor:
J. Kobliha, J. Stejskal
Publikováno v:
Journal of Forest Science, Vol 55, Iss 4, Pp 162-170 (2009)
The project is based on control pollination of different fir species in the sense of interspecific hybridization. The aim of this procedure is a new bred material for specific needs of forestry and Christmas tree production. Concrete breeding aims ar
Externí odkaz:
https://doaj.org/article/550119395c9547d08a0571e510cbfc5d
Autor:
V. Janeček, J. Kobliha
Publikováno v:
Journal of Forest Science, Vol 53, Iss 5, Pp 193-203 (2007)
Spontaneous hybrids within the genus Abies are considered to be better in growth and vitality in comparison with Abies alba and parental species. Three plantations with this material were established in the Czech Republic. These plantations are regul
Externí odkaz:
https://doaj.org/article/f996f1a05ba943e48454df592731f0d6
Publikováno v:
Journal of Forest Science, Vol 53, Iss 2, Pp 41-46 (2007)
The present paper deals with data obtained from fifteen years old Norway spruce (Picea abies [L.] Karst.) progeny test established at three sites in the Sázava River region. Parameter under the evaluation was a tree height in 15 years following the
Externí odkaz:
https://doaj.org/article/b1c65fb6dc1e49f98f4d6beee1937ea6
Publikováno v:
Journal of Forest Science, Vol 53, Iss 2, Pp 57-65 (2007)
A 6-year-old clonal trial with 13 clones of wild cherry (Prunus avium L.) was evaluated during the summer of 2004 at 6 different sites in the Czech Republic. Observed traits were the stem height, stem diameter, health status, and mortality. The mixed
Externí odkaz:
https://doaj.org/article/c925d84dd2074c73bb3f197cc8756a11
Addressing spatial variability in provenance experiments exemplified in two trials with black spruce
Publikováno v:
Journal of Forest Science, Vol 53, Iss 2, Pp 47-56 (2007)
Two exemplary black spruce (Picea mariana [Mill.] B.S.P.) provenance trials were analyzed using traditional and spatial techniques. The objective was to find out possible differences between these approaches in terms of both the resulting fit-statist
Externí odkaz:
https://doaj.org/article/c6fa73f20cf54b6e8e3f1229b1d88664
Autor:
J. Kobliha, V. Janeček
Publikováno v:
Journal of Forest Science, Vol 51, Iss Special Issue, Pp 3-12 (2005)
There are four testing plots with hybrid clonal material. This material is regularly measured and some characteristics are observed. This paper sumarizes results of measurements from years 1998, 2000 and 2002. Hybrid material is compared with control
Externí odkaz:
https://doaj.org/article/e8ab91f1a5044e93b36f68c477fd425e