oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 12 )

2018 ( 148 )

2017 ( 131 )

2016 ( 166 )

Custom range...

Search Results: 1 - 10 of 86486 matches for " W adys aw Barzdajn "
All listed articles are free for downloading (OA Articles)
Page 1 /86486
Display every page Item
Adaptacja ró nych pochodzeń jod y pospolitej (Abies alba Mill.) do warunków Sudetów
W adys aw Barzdajn
Forest Research Papers , 2009, DOI: 10.2478/v10111-009-0005-2
Abstract: The provenance experiment with fir was established in 2004 on three plots in the territory of the wieradów Zdrój Forest District (the Izerskie Mountains, West Sudetes), the Zdroje Forest District (the Sto owe Mountains, Central Sudetes) and L dek Zdrój Forest District (the Z ote Mountains, East Sudetes). The tested populations represented all locations of fir occurrence in Poland. 38, 23 and 12 fir populations were planted on the plots in the wieradów Zdrój Forest District, the Zdroje Forest District and the L dek Zdrój Forest District respectively. The provenance differences were detected for height and survival. The Sudeten populations did not differ from the non-Sudeten ones - there was a variability within both groups. The ‘location x provenance’ interaction was not confirmed. The initial experiment results indicate that import of fir seeds and seedlings from the locations outside the Sudetes is not recommended, while implementation of the fir restoration programme based on local resources is justified.
Adaptacja i pocz tkowy wzrost potomstwa drzewostanów nasiennych buka zwyczajnego (Fagus sylvatica L.) na uprawach porównawczych w nadle nictwach Z otoryja i L dek Zdrój
W adys aw Barzdajn
Forest Research Papers , 2009, DOI: 10.2478/v10111-009-0010-5
Abstract: The paper presents preliminary results of the provenance experiment with beech seed stands in south-western Poland. In each of the two experimental areas established in 2005 according to completely randomised block design, the same 30 objects were tested. In the years 2006 and 2007, heights were measured and survival was determined. To analyze data, the SERGEN 4 program was applied. It enabled evaluation of not only the main effects but also their significance, as well as genotype x environment interaction for each object individually. This allowed identification of plastic and non-plastic populations. The significance of the interaction, i.e. lack of plasticity for adaptation to plantation conditions or elevation was confirmed in half of the populations. Only two populations were found to be plastic, showing good performance in both plantations. Significant differences compared to the standard population were detected in few objects, and in most cases the differences were negative. The results obtained in the experiment confirm recent opinions about the ecotypic nature of genetic variation in beech and lack of plasticity of its provenances, at the same time indicating a chance for identifying especially valuable plastic populations.
Wzrost d bu szypu kowego (Quercus robur L.) i d bu bezszypu kowego (Q. petraea [Matt.] Liebl.) w do wiadczeniu proweniencyjnym z 1994 r. w Nadle nictwie Milicz
W adys aw Barzdajn
Forest Research Papers , 2009, DOI: 10.2478/v10111-009-0022-1
Abstract: The experiment was established in 1995 in the territory of the Milicz Forest District in completely randomised block design, in five replications. 20 seedlings were planted on experimental plots at the spacing 1.5×1.5 m. 78 pedunculate oak and sessile oak populations were used in the experiment. The provenances were evaluated in 2007 for height growth during a 5-year period, survival, diameter at breast height and basal area. The contrast Q. robur contra Q. petraea was employed in the analysis of variance. The growth traits were correlated with the geographical location of mother stands. Nearly all these parameters except for survival accounted for the differences between species and populations. The intraspecific variation was very high which indicated a possibility of selection. The variability of pedunculate oak with regard to the analysed traits appeared to be higher than in the sessile oak. The ranges of traits of sessile oak fall entirely within the range of traits of pedunculate oak. The mean values of growth traits in sessile oak populations were lower in comparison with the populations of pedunculate oak. In the conditions of the experimental site, the differences in growth traits between the pedunculate oak and sessile oak were maintained at least to the age of 14. A correlation was found between the traits of pedunculate oak and geographical location of mother stands. The growth traits of populations from southern and western regions of Poland showed higher values. Such correlations were not detected in sessile oak.
Ebav rdne v itlus stand-upi ja kabareetraditsiooni vahel Poolas
Wadysaw Ch?opicki
M?etagused. Hüperajakiri , 2012,
Abstract: The article first describes the old cabaret tradition of Polish comedy, and then looks at various forms of stand-up that have been spreading in Poland over the last 20 years, mainly on TV, but some originating in newly established comedy clubs. Within the last twenty years, the new form of stand-up in its American variety has been slowly moving in. The characteristics of this new genre included precisely the topics which were excluded from the old form (such as explicit sex references and scatology) as well as the focus on the vernacular. The common features of stand-up included immediacy, playing cultural and linguistic kinship with the audience, impersonations, “shifting consensus”, seeming spontaneity, and occasional self-deprecation. Young performers found a venue in the well known HBO show called “Na stojaka” (an attempt to translate stand-up into Polish, a show which ran for ten years), as well as other venues such as the stand-up competition called “Zabij mnie miechem” (“Kill me with laughter”) broadcast by the Polsat commercial channel since 2010, in which the winner is rewarded with a trip to an American stand-up school.This kind of stand-up does not meet with universal appeal, as one comment found on the internet clearly shows: “Stand-up Tragedy”. The Polish audiences largely believe that the performance must be first of all funny, and only then “authentic”, while some young performers seem to play mainly on obscenity and scatology and forget the need to amuse. Therefore, even though the new form has been slowly gaining ground, the cabaret prevails both in some of the forms which it shares with stand-up (e.g. non-interactive monologues, which are no longer literary but colloquial, or impersonations) and also with regard to popular performers, who largely originate in cabaret or are well-known actors.
The relationship between the arrangement of rays in secondary phloem and grain inclination in the wood of Pinus silyestris L. and Picea abies Karst
Wadysaw Pyszyński
Acta Societatis Botanicorum Poloniae , 1990, DOI: 10.5586/asbp.1990.002
Abstract: The arrangement of rays in cross sections of secondary phloem and the wood grain on the tangential and radial surfaces of wood columns from Pinus silvestris and Picea abies was studied. It was found that in most cases the rays were slanted and deviated from the geometric radius in either the S-direction (to the left) or in the Z-direction (to the right) when the cross section of the stem was observed from above. The S-type deviation dominated in those stems in which the wood grain in the peripheral parts was of the S-type (left-oriented), whereas the deviation of rays in the Z-direction was found to dominate in those objects, in which the wood grain in the peripheral parts of the stem was of the Z-type (right-oriented).
Measurements of chlorophyll fluorescence as an auxiliary method in estimating susceptibility of cultivated hazel (Corylus L.) for filbert aphid (Myzocallis coryli goetze)
Magdalena Gantner,Wadysaw Micha?ek
Acta Agrobotanica , 2010, DOI: 10.5586/aa.2010.021
Abstract: The influence of aphid feeding on chlorophyll a fluorescence in the leaves of four cultivated hazel cultivars, with different levels of resistance to filbert aphid (Myzocallis coryli Goetze), was studied. The maximum effect of photosystem reaction measured on dark-adapted hazel leaves (Fv/Fm parameter) and maximum efficiency of photon energy PAR conversion to chemical energy in light conditions (Y parameter) were estimated twice, in the leaves of four hazel cultivars with different levels of resistance to filbert aphid, using a fluorometer PAM- 2000 by Walz GmbH - Germany. The analysis of changes of these parameters showed that aphid feeding caused a reaction in all tested cultivars. The most visible reduction of the Fv/Fm and Y values as a result of aphid feeding was observed in the cultivars 'Cud z Bollwiller' and 'Olbrzymi z Halle', numerously colonized by aphids. A smaller number of aphids found on the leaves of more resistant cultivars - 'Kataloński' and 'Lamberta Bia y', caused a weaker response of plants and a smaller decline in the value of this parameter. 'Cud z Bollwiller' cultivar showed higher tolerance than other tested cultivars to stress caused by the feeding of sucking insects. The Fv/Fm and Y parameters can be regarded as reliable indexes useful in diagnosing susceptibility of hazel cultivars to aphids, helpful in determining, for example, harmfulness thresholds.
Pelvic Parameters in Holstein-Friesian and Jersey Heifers in Relation to Their Calving
Zenon Nogalski* and Wadysaw Mordas
Pakistan Veterinary Journal , 2012,
Abstract: The objective of the study was to compare calving ease, pelvic structure and pelvic angle in 74 Holstein-Friesian and 45 Jersey heifers. The frequency of difficult calving was 15.2% in Holstein-Friesians and only 2.2% in Jersey heifers. Compared with Jersey cows, Holstein-Friesians were characterized by a higher calf weight to cow weight ratio, and higher ratios of pelvic area to cow weight and pelvic area to calf weight. The results of the study show that higher frequency of difficult calving recorded in Holstein-Friesians, in comparison with Jersey heifers, could be a consequence of relatively high calf weight and less preferable pelvic structure. Large variation in the internal dimensions of the pelvis in HF heifers encouraged reducing the occurrence of dystocia through selection of the dimensions of the pelvis.
Morphogenesis of root nodules in white clover. III. The effect of mutation in nod IJ genes of the microsymbiont upon the DNA level in the host tissue
Barbara ?otocka,Wadysaw Golinowski
Acta Societatis Botanicorum Poloniae , 1998, DOI: 10.5586/asbp.1998.002
Abstract: On the basis of cytophotometric measurements a slightly increased DNA level in the nuclei of curled root hairs containing infection threads was observed in white clover inoculated with wild and mutant strains of Rhizobium leguminosarum biovar. trifolii, as compared to normal root hairs of te same plants. Cells of the root nodule primordia in 72 h after the inoculation, as compared to the root primary cortex, demonstrated an increased level of the nuclear DNA. No differences were observed in the nuclear DNA contents in individual layers of the cortex of the 28 day-old nodules. Generally it was low, varying from 2c to 4c. The meristematic and bacteroidal tissues in the effective nodules were characterized by a higher DNA level, as compared to the respective zones in ineffective nodules induced with the strains ANU261 (nod I*) and ANU262 (nod J*). The DNA level in the effective bacteroidal tissue varied from 4c to 32c, while in the tissue containing the strain ANU26l only the 2c-8c nuclei could be found and in the tissue with the strain ANU262 - the 4c-16c nuclei.
Two tomato endoglucanases have a function during syncytium development
Ma?gorzata Lichocka,Wadysaw Golinowski
Acta Societatis Botanicorum Poloniae , 2008, DOI: 10.5586/asbp.2008.001
Abstract: Globodera rostochiensis, as well as other cyst nematodes, induces formation of a multinucleate feeding site, called syncytium, in host roots. In tomato roots infected with a potato cyst nematode, the syncytium is initiated in the cortex or pericycle. Progressive cell wall dissolution and subsequent fusion of protoplasts of newly incorporated cells lead to syncytium formation. Expansion and development of a syncytium strongly depends on modifications of a cell wall, including its degradation, elongation, thickening, and formation of ingrowths within it in close contact with tracheary elements. Recent reports have demonstrated that during formation of syncytium, numerous genes of plant origin, coding for cell wall-modifying enzymes are up-re-gulated. In this research, we studied a detailed distribution and function of two tomato 1,4-β-endoglucanases in developing feeding sites induced by G. rostochiensis. In situ localization of tomato LeCel7 and LeCel8 transcripts and proteins demonstrated that these enzymes were specifically up-regulated within syncytium and in the cells adjacent to the syncytium. In non-infected roots an expression of LeCel7 and LeCel8 was observed in the root cap and lateral root primordia. Our data confirm that cell wall-modifying enzymes of plant origin have a role in a modification of cell wall within syncytia, and demonstrate that plant endoglucanases are involved in syncytia formation.
The reorganization of root anatomy and ultrastructure of syncytial cells in tomato (Lycopersicon esculentum Mill.) infected with potato cyst nematode (Globodera rostochiensis Woll.)
Sylwia Fudali,Wadysaw Golinowski
Acta Societatis Botanicorum Poloniae , 2007, DOI: 10.5586/asbp.2007.021
Abstract: The sequence of anatomical and ultrastructural events leading to the syncytium development in tomato roots infected with Globodera rostochiensis was examined. The syncytia were preferentially induced in cortical or pericyclic cells in the elongation zone of root. They developed towards the vascular cylinder by incorporation of new cells via local cell wall breakdown. After surrounding primary phloem bundle and reaching xylem tracheary elements syncytia spread along vascular cylinder. Roots in primary state of growth seemed to be the best place for syncytium induction as syncytia formed in the zone of secondary growth were less hypertrophied. At the ultrastructural level syncytial elements were characterized by strong hypertrophy, breakdown of central vacuole, increased volume of cytoplasm, proliferation of organelles, and enlargement of nuclei. On the syncytial wall adjoining vessels the cell wall ingrowths were formed, while the syncytial walls at interface of phloem were considerably thickened. They lacked of functional plasmodesmata and did not form any ingrowths. Using immunofluorescent-labelling and immunogold-labelling methods tomato expansin 5 protein was localized in nematode infected roots. The distribution of LeEXP A5 was restricted only to the walls of syncytia. The protein distribution pattern indicated that LeEXP A5 could mediates cell wall expansion during hypertrophy of syncytial elements.
Page 1 /86486
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.