diplomsko delo
Janja Dolinar (Author), Jerneja Jakopič (Mentor)

Abstract

Leta 2017 je bil zasnovan nasad, sestavljen iz dveh delov v zavarovanem prostoru in na prostem s protitočno mrežo, pri katerem smo želeli ugotoviti kako zavarovan prostor vpliva na rast in razvoj ter nekatere lastnosti plodov, treh sort ameriških borovnic (Vaccinium corymbosum L.) 'Duke', 'Aurora' in Brigitta'. Poskus je potekal v loncih in na grebenih, kjer je bilo skupno posajenih 164 grmov. Spomladi in jeseni 2019 smo grmom prešteli poganjke, izmerili višino in širino ter izračunali prostornino. Najbolj je izstopala sorta 'Brigitta', ki je imela največjo in tudi najmanjšo prostornino grma. Od junija do septembra 2019 smo v razmaku približno enega tedna v 12. obiranjih obrali plodove, jih prešteli, stehtali, izmerili barvo in trdoto. Pri fenološkem opazovanju smo ugotovili zgodnost sort, ki si sledijo: 'Duke', 'Brigitta' in 'Aurora'. Pridelek je bil večji na prostem kot v zavarovanem prostoru, vendar je bil v zavarovanem prostoru vsaj za 1 do 3 tedne zgodnejši, odvisno od sorte. Največji pridelek med sortami je imela sorta 'Aurora' na prostem v loncih in hkrati najmanjši v zavarovanem prostoru v loncih, zaradi poznega zorenja, visokih temperatur in izpada pridelka. Parametri obarvanosti so bili v skladu s pričakovanji. Parametra a* in b* sta bila negativna, raztezala sta se v območju zelene in modre barve. Pri sorti 'Aurora' in 'Brigitta' je intenzivnost modre barve od prvih proti zadnjim terminom postopoma padala. Pri sorti 'Duke' pa sprva naraščala in nato padala. Največjo trdoto plodov je imela sorta 'Duke'.

Keywords

sadjarstvo;ameriška borovnica;zavarovani prostor;rast;razvoj;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [J. Dolinar]
UDC: 634.73:582.688.31:631.544:631.526.32(043.2)
COBISS: 32211459 Link will open in a new window
Views: 463
Downloads: 136
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Other data

Secondary language: English
Secondary title: ǂThe ǂeffect of the protected environment on the growth and development of the northern highbush blueberries (Vaccinium corymbosum L.)
Secondary abstract: In 2017 a two-part plantation was created in a protected enviroment and in a open field covered with a anti hailnet, where we wanted to find out how the protected enviroment (plastic high tunnel) influences the growth and development and some characteristics of the fruit, three cultivars of highbush blueberries (Vaccinium corymbosum L.) 'Duke', 'Aurora' and 'Brigitta'. In both growing regimes half ot the plants were planted in pots and other half of plants on ridges, a total of 164 bushes were planted. In spring and autumn 2019 we counted the shoots on the bushes, measured the height and width and calculated the volume. Variable results were achieved at 'Brigitta', which had the largest and at the smallest volume of the bush, depending on treatment. From June to September 2019 in 12 harvests at intervals of about a week were performed, counted them, weighed the fruits, measured the color and firmness. Phenological observation revealed the earliness of the following cultivars: 'Duke', 'Brigitta' and 'Aurora'. The yields were higher in the open field than in the protected enviroment, where they started to ripen at least 1 to 3 weeks earlier depending on the cultivar. The biggest yield among the cultivars had 'Aurora' in the open field in pots and at the same time the lowest in the protected enviroment in pots, due to late ripening, high temperatures and not complete ripening harvests. The coloring parameters were as expected. The parameters a * and b * were negative thus they were in green and blue ranged. For the cultivars 'Aurora' and 'Brigitta' the intensity of the blue color gradually decreased from the first to the last date. In the 'Duke' cultivar, on the other hand, it first increased and then decreased. 'Duke' cultivar had the highest fruit firmness.
Secondary keywords: fruit growing;american blueberries;protected environment;growth;development;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Biotehniška fak., Oddelek za agronomijo
Pages: IX, 43 f.
ID: 12058478