Wyniki wyszukiwania - Biblioteka Nauki

1

What to divide leaves into ten parts for? The proposition of shape indices of leaf blade

100%

Meissner W. , Zolkos K.

Dendrobiology

|

2008

|

tom 60

29-33

EN

In this paper the method of creating indices for description leaf blade roundness and asymmetry, based on division of the leaf into 10 equal parts perpendicularly to the long axis was proposed. Along each division line the distance between the midrib and the leaf edge was measured separately for the left and right site of the blade. Sum of all 18 measurements, 9 on each side, may be treated as an index of the roundness of the leaf blade. Differences between sums of all measurements of the left and right leaf site could be a base for calculations of various asymmetry indices, including indicators of fluctuating asymmetry. Indices obtained by this method are quite sensitive and may be analysed using standard statistical methods.

2

Effect of different concentrations of Kelpak bioregulator on the formation of above-ground biomass cocksfoot

86%

Sosnowski J. , Jankowski K. , Wiśniewska-Kadżajan B. , Jankowska J.

Journal of Ecological Engineering

|

2013

|

tom Vol. 14, nr 1

48--52

EN

Studies with growing cocksfoot (cv. Amila) were performed in polyurethane ring with a diameter of 36 cm and a height of 40 cm, which were dug to a depth of 30 cm and filled with soil material. As the experimental factor the trade name of bioregulator Kelpak SL was used, which includes natural plant hormones (auxin and cytokinin). The following aqueous solutions of growth regulator were used: 20, 40, and 60% and control (no preparation). Kelpak were applied to all three regrowth in the form of spray at a dose of 3cm3ring-1 in the shoots elongation phase of the grass. The full use of experimental objects was in 2011-2012. At that time, the detailed study include aboveground biomass yield (g DM•ring-1), leaf length (cm), width of the base of the leaf blade (cm), leaf greenness index (SPAD). On the basis of morphological leaf characters the ratio of leaf blade shaping and the ratio of their surface were calculated. The study showed a significant influence of growth regulator on the development of aboveground biomass of cocksfoot. The greatest effect was obtained with the use of sprays of solutions with a concentration 40 and 60%.

3

Relationships between selected traits of maize cultivars differing in leaf blade senescence rates

86%

Bocianowski J. , Szulc P. , Nowosad K. , Rybus-Zajac M.

Polish Journal of Agronomy

|

2016

|

nr 26

EN

Analysis of relationships between traits is an important stage in research. These results determine the decisions taken at further stages of research as well as those made when realising successive experiments. The paper presents results of an analysis of relationships between twelve traits of two types of maize (Zea mays L.) cultivars differing in leaf blade senescence rates: ES Palazzo and ES Paroli SG. Analysed traits: assimilation surface area (ASA), ear weight (EW), ear weight fraction (EWF), leaf area index (LAI), leaf area ratio (LAR), leaf weight (LW), leaf weight fraction (LWF), number of leaves (NL), plant weight (PW), specific leaf area (SLA), stem weight (SW) and stem weight fraction (SWF). Recorded results indicate positive correlations between: LW–SW, LW–PW, EW–SW, PW–SW, EW–PW, EW–EWF, SLA–LAR and negative correlations of LW–SLA, LAR–SW, PW–SLA, PW–LAR, SWF–EWF for both types of maize cultivars in all the three years of experiments.

4

Results of indirect identification methods in polyploidy plants of Callistephus chinensis Nees

86%

Hanzelka P. , Kobza F.

Roczniki Akademii Rolniczej w Poznaniu. Ogrodnictwo

|

2000

|

tom 31

|

nr 1

5

Development of the leaf blades of Acer platanoides in industrially contaminated environment

72%

Dineva S. B.

Dendrobiology

|

2006

|

tom 55

25-32

EN

Leaf blades of Norway maple (Acer platanoides L.), growing in heavily polluted industrial area have been studied for anatomical changes developed under the influence of the industrial contamination (with SO2, NxOx, Pb, As). The aim of the examination was to reveal the dynamics in the development of leaf blades and to trace the impact of the contaminated air on the leaf structure of Norway maple. The conducted study registered acceleration of the vegetative growth of the leaf blades that is manifested through approximately two weeks earlier appearance of leaves on the tree, faster linear growth and strengthened the xeromorphic traits in the leaf structure of the tree plants from the contaminated region. The observed changes are regarded as adaptation of the plant to the polluted environment, i.e. as tolerance.

6

Grinding of conical surfaces of lighting columns with abrasive tools

72%

Latała D. , Skoczylas L. , Kluz R.

Technologia i Automatyzacja Montażu

|

2019

|

tom nr 4

29--33

EN

In this paper, the methods for grinding conical surfaces of lighting columns were presented. The operation aims to improve the surface quality of the column and prepare it for the application of a varnish layer. The article describes the methods of grinding with embankment tools using leaf blades and endless straps. The characteristics of the methods and the devices that are used to carry out the process are described. Conclusions on improving work efficiency and safety were presented.

PL

Artykuł przedstawia metody szlifowania powierzchni stożkowych na przykładzie procesu powstawania słupów oświetleniowych. Scharakteryzowano metody szlifowania materiałami nasypowymi z zastosowaniem tarcz listkowych oraz taśm bezkońcowych. Opisano charakterystykę metod oraz przedstawiono urządzenia, które są wykorzystywane do szlifowania słupów oświetleniowych. Opracowano wnioski dotyczące poprawy wydajności oraz bezpieczeństwa pracy.

7

Growth and development of the leaf blades of Acer tataricum in industrially contaminated environment

72%

Dineva S. B.

Dendrobiology

|

2005

|

tom 54

3-10

EN

During one vegetative season, the growth and the development of the leaf blades of Tatarian maple (Acer tataricum L.) from heavily polluted area has been studied. The region under investigation was contaminated mainly with SO2, NxOx, Pb, Zn, and Cu etc. The aim of the study was to compare the growth and the development of the leaf blades of Acer tataricum L. (Tatarian maple) from polluted field with those from non-polluted. Base on this to assess its tolerance to polluted conditions of the atmosphere, as well as to look for adaptive responses. The conducted study registered shorter time of the vegetative growth of the leaf blades in the commencement stages of the vegetative development. The leaves from polluted site had emergence approximately two weeks earlier compared with these from the control area. Faster linear growth of the leaf surfaces in the commencement stages of the development had been noted for the trees from polluted field. The spongy mesophyll had been reduced, as well as the common thickness of the leaf blades of the tree plants from the contaminated region. The observed changes are regarded as adaptation of the plant to the polluted environment, i.e. as tolerance.

8

The variability of selected features of Gladiolus imbricatus L. in relation to successive stages of meadow communities following the mowing cessation

72%

Kostrakiewicz-Gieralt K.

Polish Journal of Ecology

|

2014

|

tom 62

|

nr 2

EN

Molinietum caeruleae meadows belong to the most endangered plant communities in Central Europe, nowadays suffering due to the lack of management. The land abandonment promotes strong secondary expansion of macroforbs, sedges or willows, contributing to decrease of the species diversity. In light of these findings very interesting seems to be the evaluation of the variability of features of populations of rare meadow species. In Poland one of strictly protected plant is Gladiolus imbricatus L. It is a tuberous, clonal plant with sword-like leaves and tall stalks bearing purple flowers collected in one-sided inflorescence. The studies of spatio-temporal variability of selected features of subpopoulations of Gladiolus imbricatus were carried out in the years 2009-2011 in Kraków-Kostrze (Southern Poland) in patches of Molinietum caeruleae with different species composition. In Patch I chiefly occurred small meadow species, Patch II was prevailed by shrub willow, Patch III was dominated by tall-growing macroforbs, Patch IV was characterized by substantial share of large-tussock grasses, while Patch V was overgrown by tall rhizomatous grass Phragmites communis. The plant canopy height and ground moisture raised from Patch I, via Patches II, III and IV, to Patch V. Moreover, in all sites the above mentioned parameters increased moderately in consecutive seasons. The decline of abundance of subpopulations observed in the consecutive years and in the successive patches might be caused by a mortality of individuals, a physical damage of tubers, as well as a prolonged dormancy of genets. The structure of developmental stages were similar in consecutive years but differed significantly among Patches. The increasing trend toward senility noted in successive sites could be an effect of lack of microsites suitable for seedling recruitment or absence of vegetative regeneration. The dimensions of leaf blades, flowering stalks and inflorescences remained similar in the subsequent seasons, but they augmented significantly in the successive patches. The length and the width of capsules did not change significantly between seasons and sites. Concluding, it might be assumed, that the perspectives for survivability of subpopulations diminish gradually from Patch I, via Patches II, III and IV to Patch V. Simultaneously, it should be pointed out that prospects for persistence in each place steadily decrease in effect of continuous deterioration of site conditions.

9

Okresowe pobieranie P, K i Na przez buraki cukrowe w warunkach nawadniania, w zależności od rozwoju i wnoszenia składników pokarmowych do gleby

58%

Analogides D. A.

Gazeta Cukrownicza

|

1988

|

tom 96

|

nr 02

10

A simple technique of random leaf collecting for biometric studies in a tree stand

58%

Zolkos K. , Meissner W.

Biodiversity: Research and Conservation

|

2009

|

tom 15

11

The variability of selected features of Gladiolus imbricatus L. in relation to successive stages of meadow communities following the mowing cessation

58%

Kostrakiewicz-Gierałt K.

Polish Journal of Ecology

|

2014

|

tom Vol. 62, nr 2

307--321

EN

Molinietum caeruleae meadows belong to the most endangered plant communities in Central Europe, nowadays suffering due to the lack of management. The land abandonment promotes strong secondary expansion of macroforbs, sedges or willows, contributing to decrease of the species diversity. In light of these findings very interesting seems to be the evaluation of the variability of features of populations of rare meadow species. In Poland one of strictly protected plant is Gladiolus imbricatus L. It is a tuberous, clonal plant with sword-like leaves and tall stalks bearing purple flowers collected in one-sided inflorescence. The studies of spatio-temporal variability of selected features of subpopoulations of Gladiolus imbricatus were carried out in the years 2009-2011 in Kraków-Kostrze (Southern Poland) in patches of Molinietum caeruleae with different species composition. In Patch I chiefly occurred small meadow species, Patch II was prevailed by shrub willow, Patch III was dominated by tallgrowing macroforbs, Patch IV was characterized by substantial share of large-tussock grasses, while Patch V was overgrown by tall rhizomatous grass Phragmites communis. The plant canopy height and ground moisture raised from Patch I, via Patches II, III and IV, to Patch V. Moreover, in all sites the above mentioned parameters increased moderately in consecutive seasons. The decline of abundance of subpopulations observed in the consecutive years and in the successive patches might be caused by a mortality of individuals, a physical damage of tubers, as well as a prolonged dormancy of genets. The structure of developmental stages were similar in consecutive years but differed significantly among Patches. The increasing trend toward senility noted in successive sites could be an effect of lack of microsites suitable for seedling recruitment or absence of vegetative regeneration. The dimensions of leaf blades, flowering stalks and inflorescences remained similar in the subsequent seasons, but they augmented significantly in the successive patches. The length and the width of capsules did not change significantly between seasons and sites. Concluding, it might be assumed, that the perspectives for survivability of subpopulations diminish gradually from Patch I, via Patches II, III and IV to Patch V. Simultaneously, it should be pointed out that prospects for persistence in each place steadily decrease in effect of continuous deterioration of site conditions.

12

Homo- and heterophasis in the in vitro reproduction of Phyllitis scolopendrium [L.] Newm.

58%

Zenkteler E. K.

Bulletin of the Polish Academy of Sciences. Biological Sciences

|

1993

|

tom 41

|

nr 3

13

Preliminary studies on microfungi from decaying stems of Calamagrostis arundinacea in natural habitats. II. The spatial distribution of microfungi

51%

Chlebicki A.

Polish Botanical Studies

|

1993

|

tom 05

14

Wplyw terminu zbioru oraz mrozenia i przechowywania mrozonek z buraka lisciowego na zawartosc azotanow i azotynow

44%

Gebczynski P. , Kmiecik W. , Lisiewska Z.

Bromatologia i Chemia Toksykologiczna

|

1999

|

tom 32

|

nr 1

81-85

PL

Zawartość azotanów w buraku liściowym zależała od części użytkowej i wynosiła w blaszkach liściowych 1422-2723 mg NaNO3 / 1000 g i w ogonkach liściowych 2429-4198 mg NaNO3 / 1000 g świeżej masy, osiągając swoje maksimum w 3 zbiorze. Nie stwierdzono obecności azotynów. Proces technologiczny mrożenia i przechowywanie mrożonek w temp. -20°C i -30°C nie powodowały znaczących zmian w poziomie tych związków, z wyjątkiem blanszowania, które obniżało zawartość azotanów o 10-29% w zależności od części liścia.

EN

The content of nitrates and nitrites was evaluated in the blade, petiole, and whole leaf of chard harvested at four successive dates. Content of those chemicals was assessed also in the frozen product. The frozen products were prepared from blanched and non-blanched material, the temperatures of storage were -20°C and -30°C. The products were analyzed immediately after freezing and after 3 and 6 months of storage. The edible parts of fresh and frozen chard contained considerable amounts of nitrates and no nitrites. Nitrate content was 1422-2723 mg NaNO3 / 1000 g fresh weight of leaf blades and 2429 - 4198 mg NaNO3 / 1000 g fresh weight of petioles. Nitrate level in the edible parts increased with each of the 3 consecutive harvests. The process of freezing had no significant effect on the levels of the two chemicals in chard, except for blanching which reduced nitrate content by 29% in the leaf blades and by 10% in the petioles. The storage temperatures and storage period up to six months did not significantly affect the level of nitrates.

15

Ocena fenologiczna, morfologiczna i plonowanie odmian tulipanow uprawianych dwoma sposobami w warunkach przyrodniczych Olsztyna. Czesc II. Niektore cechy morfologiczne tulipanow [Tulipa L.]

44%

Wazbinska J. , Brych A. , Januszewicz E. , Płoszaj B.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

2006

|

tom 510

|

nr 2

685-690

PL

Badania nad wartością użytkową tulipanów uprawianych w cyklu jednorocznym i trzyletnim wykonano w latach 1998-2001 w Katedrze Ogrodnictwa Uniwersytetu Warmińsko-Mazurskiego w Olsztynie. Morfologia części nadziemnej odmian tulipanów (wysokość pędu kwiatowego, długość listków okwiatu i długość blaszki liściowej) zależała od sposobu uprawy. Przy uprawie wieloletniej rośliny były niższe, miały krótsze listki okwiatu i krótszą blaszkę liściową. Jedynie odmiany: ‘General Eisenhower’, ‘Red Matador’, ‘Rosy Wings’ i ‘Sambor’ uzyskały dłuższe listki okwiatu w metodzie trzyletniej. Wysokość pędu u odmian: ‘Casablanca’ i ‘Monte Carlo’ oraz długość blaszki liściowej u odmian: ‘Aladdin’, ‘Apeldoorn’, ‘Apeldoorn’s Elite’, ‘Coriolan’, ‘Giuseppe Verdi’ i ‘Monte Carlo’ była w obu uprawach zbliżona.

EN

The investigations on the usability of tulips cultivated on one-year and three-year cycles were carried out in the years 1998-2001 at the Chair of Horticulture, University of Warmia and Mazury in Olsztyn. The morphology of the aerial part of tulip varieties (flowering stem height, tepal length and leaf blade length) appeared to depend on the cultivation method. In the case of permanent crop, the plants were lower and were characterized by shorter tepals and a shorter leaf blade. Only the following varieties: ‘General Eisenhower’, ‘Red Matador’, ‘Rosy Wings’ and ‘Sambor’ had longer tepals in the three-year method. The height of flowering stem in the varieties: ‘Casablanca’ and ‘Monte Carlo’ as well as the length of leaf blade in the varieties: ‘Aladdin’, ‘Apeldoorn’, ‘Apeldoorn’s Elite’, ‘Coriolan’, ‘Giuseppe Verdi’ and ‘Monte Carlo’ were alike in both crops.

16

Zaleznosc miedzy stopniem uwodnienia lisci i gruboscia blaszki lisciowej lip rosnacych w warunkach miejskich a rozwojem populacji przedziorkow

44%

Tomczyk A. , Kielkiewicz M. , Czajkowska B.

Progress in Plant Protection

|

1997

|

tom 37

|

nr 2

65-67