Wyniki wyszukiwania - Biblioteka Nauki

1

Phytoplankton-based recovery requirement for urban lakes in the implementation of the Water Framework Directive’s ecological targets

100%

Napiorkowska-Krzebietke A. , Dunalska J.

Oceanological and Hydrobiological Studies

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2015

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tom 44

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nr 1

2

Relations between tree age, fruit load and mean fruit weight

84%

Treder W. , Mika A. , Krzewinska D.

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tom 18

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nr 2

139-149

EN

Hand fruit thinning was performed for four successive years on 'Gala' apple trees grafted on dwarf P 2 rootstock and planted at a density of 3333 trees/ha. Trees were 5 years old when the experiment started. Three thinning treatments were done with the assumption that apples at harvest should be medium sized (8 fruits per kg), large (7 fruits per kg), or very large (6 fruits per kg). To obtain such results, 84; 74 or 63 fruitlets were left per tree in the beginning of June. Two other treatments included thinning fruitlets with any defects, and no thinning in the control. To avoid subsequent effects of fruit load on blooming intensity, each year new trees were chosen for the experiment. The results indicated that with tree aging fruit load must be decreased to assure the same mean fruit weight.

PL

Zawiązki owocowe przerzedzano ręcznie przez cztery kolejne lata na jabłoniach odmiany 'Gala' szczepionych na podkładce P 2, rosnących w zagęszczeniu 3333 drzew/ha i prowadzonych w formie wrzecionowej. Do świadczenie rozpoczęto, gdy drzewa miały 5 lat. Zastosowano trzy intensywności przerzedzania przy założeniu, że jabłka w czasie zbioru powinny być średniej wielkości (8 owoców w kg), duże (7 owoców w kg), bardzo duże (6 owoców w kg). Aby zyskać oczekiwany rezultat pozostawiano na drzewie odpowiednio: 84; 74 lub 63 zawiązki owocowe po ich przerzedzeniu pod koniec czerwca. Jako kontrolę pozostawiono zawiązki bez przerzedzania i drzewa, z których usunięto tylko zawiązki z defektami. Aby uniknąć wpływu następczego przerzedzania na owocowanie, wybierano co roku nową partię drzew z jednakową intensywnością kwitnienia. Doświadczenie wykazało, że z upływem lat trzeba zmniejszać gęstość rozmieszczenia owoców w koronie jabłoni, aby utrzymać ich niezmienną wielkość. Drobnienie jest wynikiem starzenia się drzew i zmiany struktury pędów w koronie.

3

Assessment of floral organs state of Tilia genus representatives under environment pollution conditions caused by emissions of Prydniprovska Thermal Power Plant, Dnipropetrovsk city

84%

Grytsay Z. , Miasoid G.

International Letters of Natural Sciences

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2016

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tom 55

EN

The effect of polluting the environment with the emissions of the Prydniprovska Thermal Power Plant emissions, Dnipropetrovsk city, on morphometric and cytogenetic indicators of floral system of Tilia genus representatives was examined. The research was conducted in June and July in 2015. The studied objects in conditions of technogenesis show reduction of the bloom intensity rate and an increase of pollen grain sterility, which is the most significant in T. сordata. Sensitive indicators of Tilia generative sphere were suggested as informative test parameters for the use in monitoring the environment state. The recommendations are offered on the use of species of the Tilia genus in gardening industrial sites in terms of the steppe Prydniprovya.

4

Growth and cropping of two pear cultivars as affected by the type of nursery trees

84%

Sosna I. S.

Journal of Horticultural Research

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2016

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tom 24

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nr 2

5

Effect of treatment of Callistephus chinensis ( L.) Ness. Plants by Ivin at growth and decorative parameters in conditions of industrial city

67%

Bessonova V. , Ivanchenko O. , Volodarets S.

International Letters of Natural Sciences

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2019

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tom 76

EN

The effect of the new growth stimulator with the cytokinin nature Ivin was investigated at the parameters of growth, blooming and chlorophyll concentration of the leaves of Callistephus chinensis (L.) Ness. plants. The researched plants grow under the impact of industrial and exhaust fumes. The intensification of the growth processes of the treatment plants in comparison with untreated was established. The processed specimens enhance height, the number of side shoots, quantity of the leaves and their area as well as the area of the total assimilation plants surface with increasing of the vegetative mass of the plants accordingly. At the same time, the number of inflorescences and their average diameter increase. There was no significant difference in essential influence of the biostimulant upon the plants of Callistephus chinensis between breeds “Viktoria Sharlachovaya” and “Strausovo pero Rubinovaya” with the exception of some variables (total assimilation surface). The concentration of chlorophyll in leaves of Callistephus chinensis plants increases under spraying by Ivin. The rising occurs originally after spraying seedlings due to chlorophyll, after the third treatment (flower-bud formation) – due to both forms of chlorophylls was established, as well as the breed specific reaction of plants was determined. The novelty of this work consists in the investigation of the influencing the growth stimulator on the development of the ornamental flower plants in the conditions of environmental pollution. The treatment of this preparation is appropriate for stimulation of growth and intensity of bloom of the ornamental flower plants of urban territories.