Wyniki wyszukiwania

1

Effects of rootstock on photosynthetic activity and productivity in the sweet cherry cultivar 'Stella'

100%

Lichev V., Berova M.

Journal of Fruit and Ornamental Plant Research

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2004

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tom 12

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nr Spec.ed.2

2

Activity of beta-fructofuranosidase in bird cherry leaves infested with Rhopalosiphum padi L.

86%

Ciepiela A. P., Sytykiewicz H., Czerniewicz P., Futymska E.

Pestycydy

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2005

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nr 4

171-174

3

Selection of Mazzard cherries resistant to the bacterial canker disease - Pseudomonas syringae van Hall

86%

Czarnecki B., Zmudzin B.

Annals of Warsaw Agricultural University. Horticulture

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1987

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tom 14

4

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The effect of rootstock on the growth and yielding of cultivar 'Kordia' sweet cherry trees

86%

Wocior S.

Acta Scientiarum Polonorum. Hortorum Cultus

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2008

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tom 07

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nr 1

The studies conducted in the years 2004–2006 in a production orchard in the habitat conditions of the Sandomierska Upland showed that the trees budded on the seedlings of wild cherry grew more strongly than on Colt rootstock. No significant differences were observed between the rootstocks as for the trunk thickness and the crown size of young trees planted in 2001. In the group of trees planted in 1996, which were in the period of full fruiting, the crowns of trees budded on wild cherry were significantly bigger than on Colt rootstock. No significant differences were found out in the yielding of trees on wild cherry and Colt rootstock. Considerable differences in the yielding between the studied years in the group of young trees with systematic increasion was effected by increase of crown. ‘Kordia’ cv. is a valuable cultivar for Sandomierska Upland. It begins late the fruiting period (the first commercial yield in the fifth year after planting); however, it gives attractive fruits and high productivity of trees.

5

Conventional and organic farming methods of sweet cherry (Prunus avium L.): An environmental life cycle analysis approach

86%

Cappelletti G. M., Russo C., Lopriore G., Nicoletti G. M., Scelsa D.

Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze

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2015

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nr 4

6

Biological differences among isolates of Prunus necrotic ringspot and Prune dwarf ilarviruses

86%

Paduch-Cichal E., Skrzeczkowska S.

Phytopathologia Polonica

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1997

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tom 13

7

Molecular characteristics of sucrose synthase isolated from bird cherry leaves

86%

Sytykiewicz H., Czerniewicz P., Leszczynski B.

Herba Polonica

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2008

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tom 54

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nr 3

The molecular characteristics of partly purified sucrose synthase (NDP-glucose: D-fructose 2-α-D-glucosyltransferase, EC 2.4.1.13), extracted from the bird cherry (Prunus padus L.) leaves was elucidated. The sucrose synthase was successfully purified by using a four-step protocol including ammonium sulfate precipitation, dialysis, gel filtration on Sephadex G-150 and ion-exchange chromatography with the use of DEAE-cellulose. The analysed enzyme occurred in two isoforms (SuSyI and SuSyII). The relative molecular weight of native isoenzymes was estimated to be 200 and 180 kDa, respectively. Isoform SuSyI contained two different subunits of 57.5 and 52.8 kDa, whereas the structure of SuSyII was consisted of identical 63 kDa subunits. Experimental data indicated that the structure of both SuSy isoforms was composed of three subunits

8

Using simply generated RAPD markers to distinguish between sweet cherry [Prunus avium L.] cultivars

86%

Lisek A., Korbin M., Rozpara E.

Journal of Fruit and Ornamental Plant Research

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2006

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tom 14

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nr Suppl.1

9

Detection of Prunus necrotic ringspot and Prune dwarf ilarviruses by enzyme-linked immunosorbent assay in sweet- and sour-cherry trees

86%

Paduch-Cichal E., Skrzeczkowska S.

Phytopathologia Polonica

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1997

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tom 13

10

Methods to determine antioxidative capacity in fruit

86%

Vangdal E., Slimestad R.

Journal of Fruit and Ornamental Plant Research

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2006

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tom 14

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nr Suppl.2

11

Evaluation of sweet cherry cultivars recently introduced into Bulgaria compared with two Bulgarian cultivars

86%

Lichev V., Govedarov G., Tabakov S., Yordanov A.

Journal of Fruit and Ornamental Plant Research

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2004

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tom 12

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nr Spec.ed.2

12

Effect of tree training system on yield and fruit quality of sweet cherry ‘Kordia’

72%

Gonkiewicz A.

Journal of Fruit and Ornamental Plant Research

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2011

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tom 19

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nr 1

The subjects of this study were 8-year-old sweet cherry trees of the cultivar 'Kordia' grafted on the 'Colt' rootstock. The trees had been trained as spindles for four years after planting. In the fifth year, four systems of pruning were introduced: 1) the spindle form - i.e. the pruning system remained unchanged, 2) Zahn's method of pruning, 3) one-year-old shoots were cut back leaving approximately 10 buds, 4) no pruning at all - control trees. An assessment of the effects of these training systems was carried out in the third and fourth year of the study. The best results were obtained with the trees formed in the shape of a spindle and the trees pruned according to Zahn's recommendations. Cutting back long one-year-old shoots caused a significant decrease in the total yield and a small increase in the average fruit weight. The smallest values of canopy volume were obtained in the combination where long shoots had been shortened, while the largest canopies were found in the control combination. Canopy volumes of the trees shaped as spindles and of those pruned using Zahn's method were similar.

13

Effect of different crop load management strategies on fruit production and quality of sweet cherries [Prunus avium L.] 'Lapins' in Central Chile

72%

Von B. E., Sanhueza S., Elorriaga A.

Journal of Fruit and Ornamental Plant Research

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2010

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tom 18

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nr 1

51-57

A study was carried out during 2007 in the Maule Region of Chile to evaluate the effect of increasing levels of manual thinning at three intensities (15%, 30% and 50%) on fruit yield and quality (fruit size, weight, firmness and soluble solids content) of sweet cherries (Prunus avium L.) 'Lapins'. The study evaluated manual removal of entire fruiting spurs (extinction training), individual fruit buds on the spur, individual blossoms on the spur and individual fruits on the spur. Fruit size distribution was positively affected by the thinning treatments and in most cases yield was not affected by these treatments. Fruit which was not of fresh market quality (<21 mm) was reduced by the thinning. The control had 82% non market quality fruit. A 50% removal treatment reduced small fruit to very low levels and the yield of premium fruit (diameter > 28 mm) was also promoted. Manual thinning arises as a practical approach for improving fruit size distribution.

14

The resources and conditions of occurrence of wild cherry Prunus avium (Rosaceae) in the Wielkopolski National Park

72%

Bednorz L., Kosinski T., Ratajczak A.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

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2009

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tom 08

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nr 4

An inventory of wild cherry trees in the Wielkopolski National Park was made during 2007-2008. Totally, 1098 specimens of the species, in 86 forest compartments were inventoried. There were 28 monumental trees among them; the biggest one of 30 m height and 197 cm of circumference. The habitat conditions of Prunus avium occurrence on its natural sites of the Wielkopolski National Park show a wide range. Wild cherry grows here on soils representing eight types – most often on lessivè and rusty soils. In the typology of forest habitats, the species, occurs most often on habitats of a fresh deciduous forest sites, a fresh mixed deciduous forest sites and a fresh oak-pine forest sites. Also the community context of its sites shows a wide range. Wild cherry trees were recorded in eight forest plant communities – the most frequent in phytocoenoses of oak-hornbeam forests Galio sylvatici-Carpinetum, acidophilous oak forests Calamagrostio arundinaceae-Quercetum and continental pine-oak forests Querco roboris-Pinetum.

15

The sites of wild cherry stands in foothills of the Bieszczady Mountains

72%

Lasota J., Pacanowski P.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

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2008

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tom 07

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nr 4

21-34

16

Milling quality of sweet cherry (Prunus avium L.) wood on a CNC woodworking machine

72%

Pinkowski G., Szxymanski W., Krauss A.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2013

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tom 84

17

Effect of the bird cherry-oat aphid Rhopalosiphum padi L. feeding on phytochemical responses within the bird cherry Prunus padus L.

72%

Sytykiewicz H., Golawska S., Chrzanowski G.

Polish Journal of Ecology

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2011

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tom 59

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nr 2

Host specialization plays a central role in physiological diversification of aphids and plant-insect co-evolution. Different morphs of the bird cherry-oat aphid (Rhopalosiphum padi L.) are specialized and locally adapted to both primary and secondary hosts. The abundance of bird cherry-oat aphid population was estimated using the technique of direct counting of aphid individuals infesting 50 randomly selected, fully expanded 1-year side shoots of bird cherry (approx. 40 cm long) grown in the Municipal Park „Aleksanria” in Siedlce (central-eastern Poland). Entomological observations were conducted during three consecutive vegetation seasons: 2001–2003. The impact of R. padi feeding on composition of free amino acids within leaves of its primary host (the bird cherry, Prunus padus L.), infested and uninfested by aphids were studied. Eight essential amino acids (Val, Thr, Phe, Ileu, Leu, Met, His and Lys) and seven non-essential amino acids (Asp, Glu, Pro, Ser, Ala, Gly and Tyr) were identified in the bird cherry-oat leaves with the use of highperformance liquid chromatography (HPLC) separation. There were quantitative differences in free amino acids content between the tested bird cherry-oat leaves (infested and uninfested by aphids). Levels of the free amino acids were decreased in leaves attacked by R. padi, and detailed analyses revealed about 20% decline in the content of studied components during maximal aphid abundance in comparison with non-infested leaves. Additionally, the feeding behavior of the bird cherry-oat aphid seasonal morphs (fundatrix, fundatrigeniae, alatae) on the primary host was investigated. Using the electrical penetration graph (EPG) we showed differences in feeding behavior of bird cherry-oat aphid morphs on primary host. The total probing time was greatest for fundatrigeniae among all studied morphs. These individuals spent more time during phloem sap ingestion then others. Adults of alatae were not active in the phloem sap ingestion on the bird cherry. Among the tested morphs xylem sap ingestion activity was greatest for alatae. It is hypothesized that rejection of primary host and subsequent the bird cherry-oat aphid migration onto secondary hosts may be stimulated by the decline in levels of free amino acids within primary host leaves caused by long-term R. padi feeding. Comparative analyses of the aphid probing behavior additionally proved that P. padus leaves possessed high nutritive value of food for non-winged morphs (early stages of aphid infestation), while not sufficient for winged alatae (terminal phase of infestation).

18

Influence of five clonal rootstocks on the growth, productivity and fruit quality of ‘Sylvia’ and ‘Karina’ sweet cherry trees

72%

Sitarek M., Bartosiewicz B.

Journal of Fruit and Ornamental Plant Research

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2012

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tom 20

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nr 2

19

Preliminary observations on cherry (Prunus avium L.) infested by the cherry fruit fly (Rhagoletis cerasi L.) in protected and unprotected stands

72%

Hernik-Zawistowska T., Michalska K., Studnicki M.

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

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2018

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nr 39

20

Cyanide detoxifying enzymes of bird cherry oat aphid

72%

Urbanska A., Leszczynski B., Matok H., Dixon A. F. G.

Electronic Journal of Polish Agricultural Universities. Series Biology

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2002

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tom 05

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nr 2

The activity of beta-cyanoalanine synthase and rhodanese within the tissues of the three generations of the bird cherry-oat aphid that are specialized to feed on the cyanogenic spring foliage of bird cherry was assessed. The order of beta-cyanoalanine synthase activity in the three aphid generations was: generation 1> generation 2> generation 3; whereas that of rhodanese was: generation 3> generation 1>generation 2. The possible role of the bird cherry oat aphid enzymes in metabolizing dietary cyanide is discussed.

Ograniczanie wyników

Effects of rootstock on photosynthetic activity and productivity in the sweet cherry cultivar 'Stella'