Wyniki wyszukiwania - AGRO

1

Justification for the introduction of Chenopodium quinoa [Willd.] Part one. Cultivation potential, phenology and morphology

100%

Gesinski K., Kwiatkowska B.

Zeszyty Naukowe. Akademia Techniczno-Rolnicza w Bydgoszczy. Rolnictwo

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1999

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tom 44

2

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Phenological observations of selected species from the genus Syringa L. (Oleaceae) in the botanical garden of the Adam Mickiewicz University in Poznań

86%

Sowelo M., Antkowiak W.

Steciana

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2017

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tom 21

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nr 2

Phenological observations at the Botanical Garden of the Adam Mickiewicz University in Poznań were conducted on Syringa komarowii, S. meyeri, S. microphylla, S. oblata, S. reticulata, S. tomentella and S. wolfii. These observations showed the longest foliation phase in the case of S. oblata and S. meyeri, while the longest flowering phase was recorded in S. reticulata, S. microphylla and S. wolfii. Additionally, the longest period of anthesis (i.e. the period from the moment when 25% flowers bloomed to the time when 75% were out of bloom) was observed in S. oblata and S. microphylla. All examined shrubs, except for S. oblata, set fruits, which dispersal was extended to the next year (except for S. komarowii). In terms of decorative value suitable for green areas the most valuable species were S. komarowii, S. reticulata, S. meyeri, S. microphylla and S. oblata, with the three latter being the most showy shrubs in terms of autumn foliage. Moreover, S. komarowii was exceptional among the analysed species due to its large, attractive leaf blades. This lilac, together with S. meyeri, was also characterised by the most decorative inflorescences. Thanks to their stronger growth in comparison to the other species, S. komarowii, S. oblata and S. reticulata are best suited for large gardens, whereas S. meyeri and S. microphylla will prove most suitable for small gardens. All the recommended shrubs show good drought resistance.

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Changes in the aquatic moss Sphagnum denticulatum Brid. population abundance in a softwater lake over a period of three years

86%

Szmeja J.

Acta Societatis Botanicorum Poloniae

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2010

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tom 79

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nr 2

167-173

Changes in population abundance of submerged Sphagnum denticulatum Brid. were studied in an acidic and oligotrophic lake in NW Poland over three years. Individuals were counted in a moss carpet at a depth of 2.5 m on 4 experimental plots, 1 × 1 m each, every 30 days for 36 months using the SCUBA method. PAR intensity was seasonally variable (in winter higher than in summer). Changes in water pH, conductivity, HCO3- concentration, hydration and sediment pH were statistically insignificant (p > 0.05). In the summer of the second study year the moss carpet disappeared almost completely due to a massive bloom of filamentous green algae. Periods of growth, regression and regeneration were observed in the population. The stabilisation of population size took 24 months and followed the pattern: slight fluctuations, then rapid growth and repetition of slight fluctuations. The first stage lasted nine, the second four and the third nine months. These stages took place irrespective of seasons, temperature or PAR intensity. Each rapid increase in abundance lasted about 30 days, at PAR intensity >20% and water temperature ranging from 11 to 16oC (in winter, spring or autumn). The regression stage brought about by the algal bloom started in the second year (in summer) and lasted six months (until the end of January in the third year). The population regeneration began in winter (in February, water temperature 3.0oC, PAR about 20%, ice cover 0.15 m) and finished with the end of spring. The population of S. denticulatum shows a repetitive pattern of abundance variations, which is seriously disturbed in summer, especially after a warm spring, by a massive bloom of filamentous green algae.

4

Fruiting phenology of a scrub forest in thiruporur, Eastern Ghats, India

86%

Aruna R., Balasubramanian P.

International Letters of Natural Sciences

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2015

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tom 44

This paper describes the fruiting phenology of 110 individuals of woody species belonging to 22 taxa (21 species, 1 variety) belonging to 15 families including 2 species of figs in a scrub forest, Thiruporur, Eastern Ghats. Fruiting peak was observed during July 2009 with 11 species in fruiting, a dip was observed during March 2009 where only 2 species were in fruiting. Season wise fruiting peak was observed during South-west and North-east Monsoon while the dip was during summer.

5

Phenology and dynamics of autumn migration of Grey Plover [Pluvialis squatarola] through the Gulf of Gdansk in years 1984-1995

86%

Krupa R.

The Ring

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1997

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tom 19

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nr 1-2

6

A review of the Polish Psychidae [Lepidoptera]

86%

Marciniak B.

Polskie Pismo Entomologiczne

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1997

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tom 66

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nr 3-4

7

The genus Phaeobalia Mik, 1881 in Poland (Diptera: Empididae: Clinocerinae)

72%

Palaczyk A., Slowinska-Krysiak I.

Genus. International Journal of Invertebrate Taxonomy

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2013

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tom 24

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nr 3-4

8

Emergence phenology and microhabitat distribution of aquatic Diptera community at the outlets of barrage lakes: effects of temperature, substrate and current velocity

72%

Cmrlec K., Ivkovic M., Semnicki P., Mihaljevic Z.

Polish Journal of Ecology

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2013

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tom 61

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nr 1

True flies (Diptera, Insecta) are one of the most important groups of aquatic insects in respect of the number of families and abundance of individuals. The goals of this study were to determine emergence patterns and the main ecological factors that influence dipteran family abundance and emergence at barrage lake outlets. Differences in abundance and variations between microhabitats were examined. The study was carried out in Plitvice Lakes National Park (Dinaric karst region, Croatia) at outlets of three barrage lakes. On each site several microhabitats, which differ in substrate and water velocity were selected. The selected substrates were moss on tufa, particulate tufa with detritus, pebbles and silt. Sampling of dipteran adults was conducted at the end of every month during 2007/2008 with 6 emergence traps placed at each site. Simuliidae and Chironomidae were the most abundant families among the 13 families present. Temperature influenced the start of emergence and the duration of flight period. All three lake outlets differed in abundance of individuals, especially the lowest barrage lake outlet which can be contributed to the lowest levels of organic seston and highest rates of tufa deposition. For Chironomidae, Simuliidae and aquatic Empididae statistically significant positive correlation between abundance and current velocity was observed. The least favoured substrate for all Diptera families was silt, while moss was the preferred one.

9

Charakterystyka zgrupowania pszczol Apoidea na uprawach rzepaku ozimego

72%

Kelm M., Fostiak I., Kaczmarzyk M., Klukowski Z.

Progress in Plant Protection

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2003

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tom 43

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nr 1

172-181

10

Internetowy modul sum temperatur w fenologii

72%

Kozyra J., Zaliwski A., Nierobca A.

Progress in Plant Protection

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2003

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tom 43

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nr 2

749-751

11

Phenology of the alien invasive plant species Prosopis juliflora in arid and semi-arid areas in response to climate variability and some perspectives for Its control in Ethiopia

72%

Shiferaw W., Bekele T., Demissew S., Aynekulu E.

Polish Journal of Ecology

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2020

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tom 68

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nr 1

12

Morphology, biology, phenology and occurrence of the genus Empis Linnaeus (Empididae, Diptera) in Poland

72%

Niesiolowski S.

Fragmenta Faunistica

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2006

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tom 49

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nr 1

13

The turnover of White Storks Ciconia ciconia on nest during spring migration

72%

Wuczynski A.

Acta Ornithologica

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2005

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tom 40

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nr 1

83-85

It is widely accepted that the first White Storks to arrive at a nest remain there to breed. In contrast to this belief, the paper describes the replacement of at least three males and at least one female at one nest in SW Poland during the spring of 1994. The first pair occupied the nest for 5-8 days, the second pair for one day, and probably only the third pair remained at the nest to actually breed. Additional data on arrival patterns show that such replacements of non-breeding storks may occur much more frequently than was previously thought, especially in areas of intense migration. Consequently, the most common phenological observations (e.g. the arrival dates of the first and second White Storks) are not really useful for defining the timing of breeding. It is suggested that the beginning of nest occupancy should be defined by the beginning of the permanent stay of the second partner, and not just by the date of the birds' first appearance.

14

The influence of invasive Fallopia taxa on resident plant species in two river valleys (southern Poland)

72%

Chmura D., Tokarska-Guzik B., Nowak T., Wozniak G., Bzdega K., Koszela K., Gancarek M.

Acta Societatis Botanicorum Poloniae

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2015

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tom 84

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nr 1

Riparian zones in two rivers in southern Poland were studied in terms of species composition and soil parameters in patches dominated by three knotweed taxa (Fallopia japonica, F. sachalinensis and the hybrid F. ×bohemica). The main purpose was to detect any differences in species diversity, environmental conditions and in the impact of the three Fallopia spp. on resident species. Fieldwork was conducted in spring and summer in 30 invaded plots (in total 90 subplots). It was demonstrated that vegetation dominated by particular knotweed taxa differed in response to soil pH and ammonium, nitrate, and magnesium content. Fallopia spp. (living plants and necromass) had a stronger negative impact on the cover and species diversity of the resident species in summer in comparison with spring. Vegetation patches differed significantly in species composition in relation to the knotweed taxa present. These differences may be the consequence of the differentiated biotopic requirements of Fallopia taxa and the coexisting plants, or to the different impact of the knotweed taxa on the resident species.

15

The preliminary assessment of phenological reactions of selected tree species exposed to long-lasting stress in construction areas

72%

Suchocka M.

Annals of Warsaw University of Life Sciences - SGGW. Horticulture and Landscape Architecture

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2008

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tom 29

16

Simultaneous monitoring of electrical capacitance and water uptake activity of plant root system

72%

Cseresnyes I., Takacs T., Fuzy A., Rajkai K.

International Agrophysics

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2014

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tom 28

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nr 4

Pot experiments were designed to test the applicability of root electrical capacitance measurement for in situ monitoring of root water uptake activity by growing cucumber and bean cultivars in a growth chamber. Half of the plants were inoculated with Funneliformis mosseae arbuscular mycorrhizal fungi, while the other half served as non-infected controls. Root electrical capacitance and daily transpiration were monitored during the whole plant ontogeny. Phenology-dependent changes of daily transpiration (related to root water uptake) and root electrical capacitance proved to be similar as they showed upward trends from seedling emergence to the beginning of flowering stage, and thereafter decreased continuously during fruit setting. A few days after arbuscular mycorrhizal fungi-colonization, daily transpiration and root electrical capacitance of infected plants became significantly higher than those of non-infected counterparts, and the relative increment of the measured parameters was greater for the more highly mycorrhizal-dependent bean cultivar compared to that of cucumber. Arbuscular mycorrhizal fungi colonization caused 29 and 69% relative increment in shoot dry mass for cucumbers and beans, respectively. Mycorrhization resulted in 37% increase in root dry mass for beans, but no significant difference was observed for cucumbers. Results indicate the potential of root electrical capacitance measurements for monitoring the changes and differences of root water uptake rate.

17

The dynamics of growth and flowering of invasive Solidago species

72%

Szymura M., Szymura T. H.

Steciana

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2015

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tom 19

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nr 3

Solidago species are one of the most widespread invasive species in Europe. In Central Europe, vegetation dominated by alien goldenrods can occupy vast areas. Their presence causes a decrease in the biodiversity level of numerous groups of organisms (plants, birds and insects). Alien Solidago also disturb biogeochemical cycles, as well as the primary productivity in infested ecosystems. In Central Europe, four alien Solidago species are considered as naturalized plants: late goldenrod (Solidago altissima L.), Canadian goldenrod (S. canadensis L.), tall goldenrod (S. gigantea Aiton), and grass-leaved goldenrod (S. graminifolia (L.) Elliot. = Euthamia graminifolia (L.) Nutt.). To analyse the dynamics of the growth and flowering of Solidago species, an experiment was conducted in which the goldenrods were planted in pots. We examined the life history traits, which are treated as being strongly connected with the invasive abilities of these species. The height, number of ramets and percentage of flowered plants were noted at ten-day intervals from May to November over a period of four years. Two native species, often co-occurring with alien goldenrods, were analysed for comparison: European goldenrod (Solidago virgaurea L.) and common tansy (Tanacetum vulgare L.). The analysed species reached their maximal height during the second and third years of the experiment. The highest ramets were noted in the case of Solidago altissima, S. canadensis and S. gigantea. A group of lower plants consisted of Solidago graminifolia, together with the native species S. virgaurea and T. vulgare. The number of ramets formed by S. graminifolia was more than two times larger than in the case of other species. All of the analysed species flowered during the time of observation but, grass-leaved goldenrod, was the only one among the alien species which flowered in all pots and 100% of individuals produced mature seeds. Its phenology (early flowering and seed ripening) was more similar to native species’ than to other alien Solidago. Our results suggest Solidago graminifolia has strong competitive abilities; however, its range is very limited. The reasons for the slow spread of this species in Europe – other than competitive limitations – should be considered.

18

Phenology of the wild service tree (Sorbus torminalis (L.) Crantz] in Poznań and Wielkopolski National Park

72%

Bednorz L., Urbaniak A.

Dendrobiology

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2005

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tom 53

3-10

In this paper the results of the 3-year observations (2001–2003) of seasonal rhythm of S. torminalis trees growing in Poznań in Dendrological Garden of Agricultural University and in forests of Wielkopolski National Park are presented. The observations included the course of leaf development, leaf coloration and leaf fall as well as flowering, fruit ripening and fall. Sixteen phenophases were taken into account. The differences in timing and duration of S. torminalis phenophases from year to year, between two sites and among trees within the same site are pointed out and discussed.

19

Rhythmic development of some native species of blackberries [Rubus L., Corylifolii, Rosaceae] from the collection of Dendrological Garden of University of Life Sciences in Poznan

72%

Kluza-Wieloch M., Maciejewska-Rutkowska I.

Herba Polonica

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2009

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tom 55

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nr 3

38-46

In current study 13 native Rubus species of Corylifolii section, cultivated in the Dendrological Garden of University of Life Sciences in Poznań, were investigated. Phenology and growth rate of vegetative and generative stems of these plants were analyzed. Some habitat factors (temperature and precipitation) were also taken into consideration. The differences in seasonal rhythm of individual taxa were noticed. The life cycles of some species were disturbed. Weather conditions were the most important factors to have an significant influence on seasonal rhythm of Rubus species. In general, in 2008 rainfall deficiency during the vegetation caused flower and fruit disorders and the earlier dye coloration of leaves and leaf-fall. But the drought did not always affect growth rate of generative shoots.

20

Climatic factors affecting development and yielding of grapevine in Central Poland

72%

Lisek J.

Journal of Fruit and Ornamental Plant Research

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2008

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tom 16

285-293

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