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Optimizacija razmnoževanja različnih klonov hrastovolistne hortenzije (Hydrangea quercifolia W. Bartram) s potaknjenci
ID
Frbežar, Rok
(
Author
),
ID
Osterc, Gregor
(
Mentor
)
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Abstract
Samooskrba z okrasnimi rastlinami ima tako kot samooskrba pri drugih proizvodih velik ekonomski pomen. Rastline morajo biti kakovostne, proizvodnja pa uspešna, saj je le tako gospodarsko zanimiva. Nekatere rastline se razmnožujejo lažje, nekatere težje in pri slednjih je potrebna optimizacija razmnoževalnega procesa. Na Biotehniški fakulteti v Ljubljani smo opravili poskus razmnoževanja različnih klonov hrastovolistne hortenzije (Hydrangea quercifolia W. Bartram). Poskus smo postavili v plastenjaku, na pripravljenih gredicah. Potikali smo v mešanico šote in kremenčevega peska. Pri zelenih potaknjencih smo mešanici dodali še gnojilo Osmocote. Ugotovili smo, da se hrastovolistna hortenzija lažje kot z lesnatimi, razmnožuje z zelenimi potaknjenci. Pri razmnoževanju z lesnatimi potaknjenci smo dosegli zelo slabe rezultate, preživetje je bilo 14,2 %, ukoreninil pa se ni nobeden. Pri zelenih potaknjencih je bila uspešnost koreninjenja od 71,1 % do 86,7 %, s stranjskimi poganjki pa od 13,8 % do 31,4 %. Prisotnost kalusa je bila majhna, (3 do 8,9 %). Večina potaknjencev se je koreninila bazalno.
Language:
Slovenian
Keywords:
okrasne rastline
,
potaknjenci
,
optimizacija razmnoževanja
Work type:
Bachelor thesis/paper
Typology:
2.11 - Undergraduate Thesis
Organization:
BF - Biotechnical Faculty
Publisher:
[R. Frbežar]
Year:
2019
PID:
20.500.12556/RUL-111077
UDC:
635.9:582.785:631.535(043.2)
COBISS.SI-ID:
9301369
Publication date in RUL:
22.09.2019
Views:
1723
Downloads:
147
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Secondary language
Language:
English
Title:
Optimisation of the propagation of diferent oakleaf hydrangea clones (Hydrangea quercifolia W. Bartram) by cuttings
Abstract:
Ornamental flower self-supply has as well as self-supply of any other product large economic impact. Quality of the plants must be high and their production rate highly successful, to be economically interesting. Some plants are easier to propagate then others. That means, in some cases optimisation of propagation is needed. The experiment, of the propagation of different clones of oakleaf hydrangea (Hydrangea quercifolia W. Bartram) was conducted at Biotechnical Faculty of Ljubljana. Experiment was done in beds in a greenhouse. The bed was a mixture of peat and pebble sand. Osmocote fertilizer was added to the mixture when planting softwood cuttings. Softwood cuttings are more likely to propagate in spring and summer time. Addition of hormone increases and promotes formation of root system. Because of high transpiration rate, misting or fogging is required. Propagation with hardwood cuttings was not very successful. Only 14.2 % have survived and none of them have rooted. Softwood cuttings showed greater rate of propagation. Successfulness of rooting was between 71.1 % and 86.7 % and new shoot rate was between 13.8 % and 31.4 %. The presence of callus was low (3 – 8.9 %). Most of cuttings were rooted basally.
Keywords:
ornamental plants
,
cuttings
,
optimization of the propagation
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