Báo cáo lâm nghiệp:"Optimisation of inoculation of Leucaena leucocephala and Acacia mangium with rhizobium under greenhouse conditions" docx

Ngày tải lên: 07/08/2014, 03:22

... 38–44 Spatio-temporal patterns of the Norway spruce decline in the Beskid Śląski and Żywiecki (Western Carpathians) in southern Poland W. G Department of Forest Management in Mountain Regions, ... northern part of Beskidy Mts. was as- sessed as poor, and improving southward – the best was in the southern parts of Beskid Żywiecki....

Ngày tải lên: 07/08/2014, 03:22

... 53 JOURNAL OF FOREST SCIENCE, 53, 2007 (Special Issue): 53–56 Contribution to knowledge of Hylesinus fraxini (Panzer, 1779) (Coleoptera: Scolytidae) natural enemies from Northern Moravia (Czech ... recorded. e most abundant parasitoid was Eurytoma morio Boheman, 1836 (44.1% from the total number of all reared parasitoids; 23.8% of the total mortal...

Ngày tải lên: 07/08/2014, 03:22

... 57–62 Because of the lack of a recent survey of Cephal- cia species in the Czech Republic, the goals of this study were (i) to monitor web-spinning sawflies liv- ing on spruce in mountainous regions ... species occurrence. Canonical axes explain 65.8% of variability J. FOR. SCI., 53, 2007 (Special Issue): 57–62 59 Table 1. Survey of studied web-spinning sawflies...

Ngày tải lên: 07/08/2014, 03:22

... 63 JOURNAL OF FOREST SCIENCE, 53, 2007 (Special Issue): 63–68 Web-spinning sawflies of the genus Cephalcia Panzer (Hymenoptera, Pamphiliidae) in the Picea abies forests of the Beskidy Mountains (Poland) M. ... importance. Keywords: web-spinning sawfly; Picea abies; Cephalcia; Beskidy Mountains; Poland e increased level of the occurrence of w...

Ngày tải lên: 07/08/2014, 03:22

... remarkable increase in wood density along the stem radius in all the models. In the CW zone, the increase is more distinct in the first 40 years of growth, then the wood density stagnates. In the other ... trend when density increases with the increasing percentage of compression wood in the sample. When there is 10% of compression wood i...

Ngày tải lên: 07/08/2014, 03:22

... (1 n/N) ì 2 /n, independently of the original dis- tribution of the variable of interest. Here, although the estimate of the true mean is unbiased and the variance of the mean decreases ... samples of size 100, 32 of size 110, and 4 of size 121. In sampling a nonrectangular area, variability of the sample size will further be increased depend- ing on the...

Ngày tải lên: 07/08/2014, 03:22

... occurrence of beech we can observe that on the converted plots the domination of Uropo- dina mites was increased and domination rate of Parasitidae mites was decreased. Similar results of the reaction ... reaction of this group of mites to increas- ing amount of broadleaves in tree-stands were presented in “common-garden” forest experiment (S 2007). Th...

Ngày tải lên: 07/08/2014, 03:22

... assort- ments with the potential income possible to obtain An economic aspect of conversion of Scots pine (Pinus sylvestris L.) stands in the Polish Lowland A. W 1 , R. J 1 , G. R 1 , ... beginning has been fixed on the basis of the relation of the value of wood increment from the stands which need conversion to the value o...

Ngày tải lên: 07/08/2014, 03:22

... Research Intention of Institute of Systems Biology and Ecology, Project No. AV0Z 60870520. Long-term effects of CO 2 enrichment on bud phenology and shoot growth patterns of Norway spruce juvenile ... acceleration of bud phenology result in prolonga- tion of the shoot growth period and in a subsequent enhancement of wood production (B...

Ngày tải lên: 07/08/2014, 03:22

... main tree species, the input data being the tree diameter and height, quality of the bottom third of the stem (A, B, C), stem damage (yes, no), and in the case of the beech also the age and ... for assessing the forest state – survey of natural conditions and forest ecology, detection of forest stands condition for forest management needs, and...

Ngày tải lên: 07/08/2014, 04:20

... no data on water relations and mineral nutrition is available for infected oaks under field conditions. The knowledge about the effects of Phytophthoras on mature oaks under natural conditions ... analysis of the effects of air pol- lution on forests, 4th ed., United Nations Economic Commission Impact of P. quercina on mature oaks 671 for Europe Convention on Lon...

Ngày tải lên: 07/08/2014, 16:20

... 6371 â INRA, EDP Sciences, 2006 DOI: 10.1051/forest:2005098 Original article Short-term effects of fire on plant cover and soil conditions in two Austrocedrus chilensis (cypress) forests in Patagonia, ... changes in understory and overstory, and in the patterns of soil temperature and moisture in burned cypress forests of Patagonia. Once...

Ngày tải lên: 08/08/2014, 00:22

... article Optimisation of inoculation of Leucaena leucocephala and Acacia mangium with rhizobium under greenhouse conditions Diégane DIOUF a , Sylvain FORESTIER b , Marc NEYRA c and Didier LESUEUR b * a ... concerned the optimization of inoculation of two agroforestry species of woody leguminous plants: Leucaena leucocephala and Acacia mangium with...

Ngày tải lên: 08/08/2014, 01:21

... primarily to investi- gate some of the changes that occur in the seedling root sys- tems of 6 species of forest tree (Tab. I) when grown in compe- tition with grass under nursery conditions, and secondarily whether ... 10.1051/forest:2003052 Original article Seedling root growth of six broadleaved tree species grown in competition with grass...

Ngày tải lên: 08/08/2014, 01:21