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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Light relations in a plum orchard trellised horizontally in comparison with standard, central leader training

100%
Mika A., Buler Z.
Journal of Horticultural Research
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2016
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tom 24
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nr 2
2

The impact of overstory species and soil properties on the growth of planted silver fir Abies alba in the Karkonosze Mountains, Poland

100%
Dobrowolska D., Pawlak B., Olszowska G.
Polish Journal of Ecology
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2021
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tom 69
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nr 1
3

Induction of lateral shoots in unpruned leaders of young sweet cherry trees

100%
Jacyna T., Lipa T.
Journal of Fruit and Ornamental Plant Research
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2008
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tom 16
65-73
4

The spider fauna (Araneae) of tree canopies in the Białowieza Forest

100%
Otto S., Floren A.
Fragmenta Faunistica
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2007
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tom 50
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nr 1
5

Effect of spray emission system and air-jet setting on deposit and loss of spray in apple orchard

100%
Doruchowski G., Holownicki R., Godyn A.
Journal of Fruit and Ornamental Plant Research
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1997
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tom 05
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nr 3-4
6

Penetration of air within the apple tree canopy as affected by the air jet characteristics and travel velocity of the sprayer

100%
Swiechowski W., Doruchowski G., Holownicki R., Godyn A.
Electronic Journal of Polish Agricultural Universities. Series Agricultural Engineering
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2004
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tom 07
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nr 2
The characteristics of air jet together with travel velocity of the sprayer are crucial factors influencing the penetration of air in the tree canopy. The objective of the study was to determine the volume of air penetrating into the canopy of apple trees, produced by three orchard sprayers with different fan types and operated at different travel velocities. Due to different fans, the following discharge systems were available: radial air flow, cross-flow and directed air flow. The sprayers were driven at 4, 6 and 8 km/h along the trees inside which the air velocity was measured in 9 points, placed in 3 vertical layers. The obtained data was processed to get the air volume penetrating the tree canopy and being delivered to the points of measurements. The influence of travel velocity on air penetration in the tree depended on the character of the air jet produced by the sprayer. For high volume/low speed air jets (radial air flow and cross flow) the decrease of travel velocity caused consid.
7
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Water-borne hyphomycetes in tree canopies of Kaiga (Western Ghats), India

80%
Sudheep N. M., Sridhar K. R.
Acta Mycologica
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2010
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tom 45
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nr 2
The canopy samples such as trapped leaf litter, trapped sediment (during summer), stemflow and throughfall (during monsoon) from five common riparian tree species (Artocarpus heterophyllus, Cassia fistula, Ficus recemosa, Syzygium caryophyllatum and Xylia xylocarpa) in Kaiga forest stand of the Western Ghats of southwest India were evaluated for the occurrence of water-borne hyphomycetes. Partially decomposed trapped leaf litter was incubated in bubble chambers followed by filtration to assess conidial output. Sediments accumulated in tree holes or junction of branches were shaken with sterile leaf disks in distilled water followed by incubation of leaf disks in bubble chamber and filtration to find out colonized fungi. Stemflow and throughfall samples were filtered directly to collect free conidia. From five canopy niches, a total of 29 water-borne hyphomycetes were recovered. The species richness was higher in stemflow and throughfall than trapped leaf litter and sediments (14-16 vs. 6-10 species). Although sediments of Syzygium caryophyllatum were acidic (5.1), the conidial output was higher than other tree species. Stemflow and throughfall of Xylea xylocarpa even though alkaline (8.5-8.7) showed higher species richness (6-12 species) as well as conidial load than rest of the tree species. Flagellospora curvula and Triscelophorus acuminatus were common in trapped leaf litter and sediments respectively, while conidia of Anguillospora crassa and A. longissima were frequent in stemflow and throughfall. Diversity of water-borne hyphomycetes was highest in throughfall of Xylea xylocarpa followed by throughfall of Ficus recemosa. Our study reconfirms the occurrence and survival of diverse water-borne hyphomycetes in different niches of riparian tree canopies of the Western Ghats during wet and dry regimes and predicts their possible role in canopy as saprophytes, endophytes and alternation of life cycle between canopy and aquatic habitats.
8

Effect of cultivar, position of fruits in tree-crown and of summer pruning on surface temperature of apples and pears

80%
Lipa T., Lipecki J., Janisz A.
Electronic Journal of Polish Agricultural Universities. Series: Horticulture
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2012
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tom 15
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nr 2
9
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Comparison of two planting systems for several pear cultivars

80%
Sosna I.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2019
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tom 18
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nr 4
Choice of orchard system is one of the major factors, on which pear crop size and quality depend. The purpose of this research was to assess the influence of two training systems involving trees trained to different number of leaders on growth, yield, and fruit quality of three pear cultivars. The study was conducted in 2001–2012 near Wrocław (south-western Poland). One-year-old trees of ‘Carola’, ‘Dicolor’ and ‘Erika’ cultivars on the Quince S1 rootstock were planted in the spring 2001 using 3.5 m between rows and a variable in-row spacing: 1.7 m (Drilling form with 3 leaders) and 1.2 m (Güttingen – V system with 1 leader). More vigorous growth was observed from more sparsely planted trees under the Drilling form. The total per-tree yield during 2002– 2012 was decreasing as the planting density increased. No differences were observed on yield per hectare between the tested systems. The Drilling trees produced significantly heavier and larger fruit than the trees trained to the V-Güttingen system.
10

Tree canopy leaf area index (LAI) measurements with the hemispherical photography at a Tuczno Forest

80%
Chojnicki B. H., Strzelinski P., Danielewska A., Urbaniak M., Baran M.
Acta Agrophysica. Rozprawy i Monografie
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2010
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nr 2[179]
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