diplomsko delo
Dani Nevreden (Avtor), Stanislav Trdan (Mentor)

Povzetek

V letu 2020 smo izvedli poskus s čebulo (Allium cepa L.) sorte 'Stanfield', na kateri smo preučevali vpliv štirih biostimulantov (Vitanica Si, Vitanica MC, Plantonic in Basfoliar Force) na kakovost in količino pridelka, ki je odvisen tudi od okužb z glivami in poškodb, ki jih naredijo škodljivci. Poskus smo zasnovali na Laboratorijskem polju Biotehniške fakultete v Ljubljani. Pridelovalno zemljišče smo razdelili v tri bloke, znotraj katerih smo naključno razporedili 15 obravnavanj. Biostimulante smo na čebulo nanašali v 10-dnevnih intervalih. Z njimi smo rastline škropili štirikrat v času intenzivne rasti čebule. Pri uporabi Vitanica Si se je pridelek najbolj povečal, v primerjavi z obravnavanji pozitivne in negativne kontrole, in sicer za 2 t/ha. Poskus je pokazal, da škropljenje čebule z biostimulanti povečuje občutljivost čebule na čebulno plesen. Plantonic je zmanjšal povprečni indeks okužbe listov čebule s črno listno pegavostjo. Vitanica MC, Vitanica Si in Basfoliar Force so povečali dovzetnost čebule na poškodbe žerk čebulne muhe oziroma porove zavrtalke. Plantonic in Vitanica MC sta se pokazala kot ustrezna za zmanjševanje poškodb, ki jih povzročajo strune. Pri poškodbah, ki jih na listih povzroča tobakov resar, nismo zaznali razlik med obravnavanji. Pri obravnavanjih Vitanica MC in Vitanica Si v kombinaciji s sistemičnimi fungicidi smo, v primerjavi z ostalimi obravnavanji, izmerili za 22,1 % večjo maso čebule.

Ključne besede

čebula;Allium cepa;bolezni;porova škrlatna pegavost;Alternaria porri;čebulna plesen;Peronospora destructor;škodljive žuželke;tobakov resar;Thrips tabaci;čebulna muha;Delia antiqua;Phytomyza gymnostoma;strune;

Podatki

Jezik: Slovenski jezik
Leto izida:
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL BF - Biotehniška fakulteta
Založnik: [D. Nevreden]
UDK: 635.25:632.952:631.811.98:631.559(043.2)
COBISS: 91208707 Povezava se bo odprla v novem oknu
Št. ogledov: 176
Št. prenosov: 27
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Investigation on compatibility of four bistimulants with synthetic fungicides on onion (Allium cepa L.) under field conditions
Sekundarni povzetek: In 2020, an experiment with onions (Allium cepa L.) on the ‘Stanfield’ variety was conducted, in which the impact of four biostimulants (Vitanica Si, Vitanica MC, Plantonic and Basfoliar Force) in terms of yield quality and quantity, which depends on fungal infections and pest damage, was studied. The experiment was designed at the Laboratory Field of the Biotechnical Faculty in Ljubljana. The experimental field was divided into three blocks, within which 15 treatments were randomly distributed. Biostimulants were applied in intervals of 10 days. They were sprayed four times during the intensive growth of the aboveground part of the onion. When using the Vitanica Si, the yield was the greatest in comparison to the positive and negative control, reached 2 t/hectare. The experiment showed that spraying onions with biostimulants increases the susceptibility of onionto the downy mildew. Plantonic showed the lowest average index of onion leaf infestation with onion purple blotch. Vitanica MC, Vitanica Si and Basfoliar Force showed an increased susceptibility of onions to damage caused by the onion fly i.e. onion leaf miner. Plantonic and Vitanica MC have been shown to be suitable for reducing the click beetle damage. In the case of leaf damage caused by onion thrips, we did not determine significantly damages among treatments. When Vitanica MC and Vitanica Si were used with a systemic fungicide, we found 22.1% greater mass of onion in comparison to the other treatments.
Sekundarne ključne besede: onion;diseases;purple blotch of onion;downy mildew of onion;Peronospora destructor;insect pests;onion thrips;onion fly;onion leaf miner;wireworms;
Vrsta dela (COBISS): Diplomsko delo/naloga
Študijski program: 0
Komentar na gradivo: Univ. v Ljubljani, Biotehniška fak., Oddelek za agronomijo
Strani: IX, 39 f.
ID: 14129071