diplomsko delo
Manca Štular (Author), Ana Slatnar (Mentor)

Abstract

Poznavanje dejavnikov, od zasnove pridelave do tehnologije pobiranja, ki vplivajo na sposobnost dolgotrajnega skladiščenja je z vidika pridelovalca zelo pomembno. Pravilno ravnanje in ustrezno skladiščenje pripomore k ponudbi čebule, s katero bi zadostili povpraševanju potrošnikov. Pri skladiščenju čebule je pomembno razumeti fiziologijo rasti, za lažje uravnavanje rastnih regulatorjev. Na uspešno skladiščenje vplivamo že z razmerami, v katerih čebula raste (agrotehnični ukrepi). Optimalni pogoji v skladišču kakovost čebulic dodatno podaljšajo, če smo ob tem upoštevali predpogoje, med katere štejemo pravočasno pobiranje pridelka, primerno rokovanje ob pobiranju in primerno oskrbo med rastno sezono, tako da smo jo ustrezno namakali, gnojili in izvajali kemično varstvo. Študije so pokazale, da čezmerno namakanje v fazi zapiranja čebulnega vratu povzroči gnitje med skladiščenjem, v nasprotju, pri pomankanju vlage, je manjši pridelek, zgodnejša kalitev ter večja izguba vode. Pogoja, ki jih lahko nadzorujemo, kot sta nizka temperatura in srednja do visoka relativna vlažnost v skladišču, nam omogočata dolgotrajnejše shranjevanje čebule. Kakovost čebule pri skladiščenju se izgublja predvsem z kaljenjem, ukoreninjanjem, spremembo kemične sestave čebule in z izgubo vode. Poročali so, da se kakovost zmanjša v anaerobnih pogojih, kjer pride do nižje vsebnosti sladkorja, zmanjša se tudi trdota čebule.

Keywords

čebula;allium cepa;skladiščenje;pogoji skladiščenja;kakovost;dolgotrajno shranjevanje;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [M. Štular]
UDC: 635.25:631.563.8/9(043.2)
COBISS: 125525763 Link will open in a new window
Views: 21
Downloads: 10
Average score: 0 (0 votes)
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Other data

Secondary language: English
Secondary title: Factors of long-term storage capacity of onions (Allium cepa L.)
Secondary abstract: It is very important for the grower to know the factors that affect long-term storage capacity, from production planning to harvesting techniques. Adequate handling and storage capacity is very important as it helps to ensure the supply of onions to meet consumer demand. When storing onions, it is important to understand growth physiology for easier regulation of growth regulators. The success of storage depends on the conditions under which the onions grow (agrotechnical measures). Optimal storage conditions can further prolong the quality of onions if some conditions are observed. These include timely harvesting, proper handling at harvest, and adequate care during the growing season through proper irrigation, fertilization, and chemical protection. Studies have shown that over-irrigation at the stage when the bulb neck closes leads to rot during storage, while lack of water leads to lower yields, earlier germination and greater water loss. Controlled storage conditions that allow long storage, such as low temperature and medium to high relative humidity in the warehouse, are required. The main quality loss of onions during storage is due to water loss, germination, rooting, and changes in the chemical composition of the onion. Quality has been reported to decrease under anaerobic conditions due to lower sugar content and lower onion firmness.
Secondary keywords: onion;storage capacity;storage conditions;quality;
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: 1 spletni vir (1 datoteka PDF (VI, 22 f.))
ID: 16458502