Báo cáo lâm nghiêp: "Culture in vitro d’embryons isolés de noyer commun (Juglans regia L )" ppsx

Báo cáo lâm nghiêp: "Culture in vitro d’embryons isolés de noyer commun (Juglans regia L.)" ppsx

Báo cáo lâm nghiêp: "Culture in vitro d’embryons isolés de noyer commun (Juglans regia L.)" ppsx

... ou de M ILLER (1967), la biotine (0,01 mg/1), la glutamine (200 mgll), le myo-inositol (100 mg/]) et de 0,1 mgll d’acide nicotinique, de pyridoxine, de thiamine, de pantothenate ... observées. 4.2. Rôle de la BAP L analyse des résultats met en valeur l intérêt de la technique de culture des épicotyles excisés des plantules obtenues in...
Ngày tải lên : 09/08/2014, 06:21
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Báo cáo lâm nghiệp: "Comportement in vitro d’embryons zygotiques de chêne liège (Quercus suber L.) excisés à divers stades de leur développement" pps

Báo cáo lâm nghiệp: "Comportement in vitro d’embryons zygotiques de chêne liège (Quercus suber L.) excisés à divers stades de leur développement" pps

... exemples d’embryogenèse soma- tique directe (Williams et Maheswaran, 1986), ils proviennent soit d’amas pluricel- lulaires superficiels soit de cellules épider- miques devenues ... croissance rapide au cours de laquelle les activités mitotiques sont très importantes (Bhojwani et Raz- dan, 1983). De plus, la majorité des cel- lules constituant de te...
Ngày tải lên : 09/08/2014, 04:20
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Báo cáo lâm nghiệp: "Nodulation in vitro et étapes précoces de l’infection rhizobienne chez Acacia albida (syn Faidherbia albida)" ppt

Báo cáo lâm nghiệp: "Nodulation in vitro et étapes précoces de l’infection rhizobienne chez Acacia albida (syn Faidherbia albida)" ppt

... rinçages à l eau distillée, les racines sont colorées au bleu de méthylène (0,1 %) pendant 5 min puis rincées à l eau dis- tillée pour éliminer l excès de colorant. Les observations ... du milieu de culture notam- ment le pH, la faible mobilité des bactéries, les modifications structurales des parois des cellules des poils seraient à l origin...
Ngày tải lên : 08/08/2014, 18:21
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Báo cáo lâm nghiệp: "Changes in the mycorrhizal status of some mountain spruce forests" potx

Báo cáo lâm nghiệp: "Changes in the mycorrhizal status of some mountain spruce forests" potx

... my- corrhizal tips were calculated from samples selected before drying as average number of tips found in 20 main root sections (< 1 mm in diameter) of 5 cm in length including their side branches. ... in the 2004–2006 investigation period it decreased to 3.78. Although the pH values measured in the plot are not avail- able for the oldest mycorrhizal analyses (sampling in 1...
Ngày tải lên : 07/08/2014, 03:22
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Báo cáo lâm nghiệp: "Variability in density of spruce (Picea abies [L.] Karst.) wood with the presence of reaction wood" potx

Báo cáo lâm nghiệp: "Variability in density of spruce (Picea abies [L.] Karst.) wood with the presence of reaction wood" potx

... Wood. Berlin, Springer Verlag: 705. TRENDELENBURG R., 1932. Über die Eigenschaften des Rot- oder Druckholzes der Nadelhölzer. Allgemeine Forst- und Jagdzeitung, 108: 1–14. TRENDELENBURG R., ... density decreases in the CW zone with the increasing height. In the side zones SWL and SWR it is also possible to see a gradual decrease in density with the increasing stem height. Only the...
Ngày tải lên : 07/08/2014, 03:22
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Báo cáo lâm nghiệp: "Changes in Austrian pine forest floor properties in relation with altitude in mountainous areas" pdf

Báo cáo lâm nghiệp: "Changes in Austrian pine forest floor properties in relation with altitude in mountainous areas" pdf

... decomposition of leaf litter in a black alder (Alnus glutinosa (Gaertn.) L. ) forest. Soil Biology & Biochemistry, 33: 921–930. DOLEŽAL J., ŠRUTEK M., 2002. Altitudinal changes in com- position ... 0.01), respectively. e Nt content of L + F layer also increases through the elevation revealing a medium correla- tion with altitude (0.368; P < 0.05). e increasing Nt and decreas...
Ngày tải lên : 07/08/2014, 03:22
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Báo cáo lâm nghiệp: "Changes in air quality in different phases of forest management process in a sub-mountain beech ecosystem (West Carpathian Mts.)" pdf

Báo cáo lâm nghiệp: "Changes in air quality in different phases of forest management process in a sub-mountain beech ecosystem (West Carpathian Mts.)" pdf

... Mountains, Central Europe. In: OMASA K., NOUCHI I., DE KOK L. J. (eds), Plant Responses to Air Pollu- tion and Global Change. Tokyo, Springer-Verlag: 111–121. GEROSA G., MAZZALI C., BALLARINDENTI ... monitoring in a mountain forest region: passive and continuous sampling, vertical and canopy profiles. In: Proceedings of the International Sym- posium on Passive Sampling of Gaseous Ai...
Ngày tải lên : 07/08/2014, 03:22
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Báo cáo lâm nghiệp: " Root system development and health condition of sycamore maple (Acer pseudoplatanus L.) in the air-polluted region of Krušné hory Mts" ppt

Báo cáo lâm nghiệp: " Root system development and health condition of sycamore maple (Acer pseudoplatanus L.) in the air-polluted region of Krušné hory Mts" ppt

... naturally developing seedlings already from the nursery and the root system is me- chanically treated during their planting out, which will induce the development of additional roots. As in most ... total rooting depth; length of horizontal skeleton roots; incidence of malformation. e measured values were used to calculate the index of surfaces (Index p, Ip in the tables of results...
Ngày tải lên : 07/08/2014, 04:20
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Báo cáo lâm nghiệp: "Changes in phenolic acids and stilbenes induced in embryogenic cell cultures of Norway spruce by two fractions of Sirococcus strobilinus mycelia" pot

Báo cáo lâm nghiệp: "Changes in phenolic acids and stilbenes induced in embryogenic cell cultures of Norway spruce by two fractions of Sirococcus strobilinus mycelia" pot

... followed by the methanol- insoluble cell wall-bound phenolic esters (CWE; 7–8%). e amounts of methanol soluble esters (SE) and free phenolic acids (F) were low in control cells, accounting ... stilbene glycoside levels in WF-elic- ited cultures remained more or less stable till the end of 24 h treatment. During 12 h of treatment PF evoked the decline of total stilbene glycosides ......
Ngày tải lên : 07/08/2014, 10:21
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Báo cáo lâm nghiệp: "Changes in the abundance of Melolontha hippocastani" ppsx

Báo cáo lâm nghiệp: "Changes in the abundance of Melolontha hippocastani" ppsx

... Vracov, Lipník and Kluk and locally in Bulhary. e development in the abundance of cockchafer populations in the studied localities will be speci- fied in greater detail in the following years during ... bassiana (Balsamo) Vuillemin in an inert filling mass (amor- phous silicon dioxide) was experimentally applied aerially by the Robinson R 22 type helicopter over a total area o...
Ngày tải lên : 07/08/2014, 10:21
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