Pomen matičnega materiala za uspešnost koreninjenja potaknjencev pelargonij (Pelargonium sp.)

Zore, Martina (author), Jakopič, Jerneja (mentor)

V raziskavi smo želeli ugotoviti ali matični material in vsebnost enostavnih sladkorjev v potaknjencih vplivata na rast potaknjencev. V poskusu smo uporabili štiri sorte pelargonij: 'Calliope L Dark Red' in 'Tango Dark Red' (pokončni sorti) ter 'Acapulco Cascade' in 'Ville de Paris Rot' (viseči sorti). Poskus je bil izveden v treh terminih, in sicer v 45., 47. in 48. zaporednem tednu leta 2017. Potaknjenci so bili pripeljani iz Kenije in Etiopije ter potaknjeni 8. 11., 22. 11. in 29. 11. 2017 na vrtnariji Picount. V istih terminih smo v laboratoriju Biotehniške fakultete v Ljubljani potaknjencem izmerili svežo maso ter topno suho snov in jih razdelili na dele (listi, steblo, vršiček). Potem smo določili še vsebnost skupnih enostavnih sladkorjev. Povprečna vsebnost sladkorjev je bila pri pokončnih sortah z vsakim terminom manjša, pri visečih sortah pa so se vsebnosti sladkorjev v 48. tednu povečale. Dva tedna po potiku smo ocenjevali ukoreninjenost potaknjencev in ugotovili, da se je najbolje ukoreninila viseča sorta 'Acapulco Cascade' z 72 %, najslabše pa pokončna sorta 'Calliope L Dark Red' s 45 %. Trideset dni po potiku smo ocenjevali prekoreninjenost koreninske grude. Z oceno 3 in 4 sta se najbolje prekoreninili sorti 'Tango Dark Red' in 'Ville de Paris Rot' s 95 %. Viseča sorta 'Acapulco Cascade' se je najbolje ukoreninila, saj je imela tudi največjo vsebnost sladkorjev, kar nam pove, da je vsebnost sladkorjev ključna za boljši razvoj korenin.

• Language: Slovenian
• Keywords: Pelargonije, sorte, potaknjenci, vegetativno razmnoževanje, koreninjenje, kemična sestava
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Publisher: [M. Zore]
• Year: 2020
• PID: 20.500.12556/RUL-120423
• UDC: 635.9:582.752.3:631.526.32:631.532(043.2)
• COBISS.SI-ID: 29956099
• Publication date in RUL: 20.09.2020

Secondary language

• Language: English
• Title: Importance of parent material for the success of rooting of pelargonium cuttings (Pelargonium sp.)

Abstract

In the study we wanted to determine whether the growth of the cuttings is influenced by the source material and the sugar content in the cuttings. In the experiment we used four varieties of Pelargonium: 'Calliope L Dark Red' and 'Tango Dark Red' (portrait varieties) and 'Acapulco Cascade' and 'Ville de Paris Rot' (hanging varieties). The experiment was conducted in 2017 on the dates, the 45th, 47th and 48th consecutive weeks in the year. The cuttings were brought to Picount company from Kenya and Ethiopia on 8 November, 22 November and 29 November. On the same days the fresh weight and total soluble solids of the plant material were measured in the laboratory of the Biotehnical Faculty in Ljubljana and divided into plant parts (leaves, stem, tip). Then we determined the sugar content. In the upright varieties the average sugar content was reduced under the sampling data, in the drifing varieties the sugar content was higher in the 48th week. Two weeks after the placing into plug trays we evaluated the rooting of the cuttings and found that the 'Acapulco Cascade', was the best rooted (72%) and the worst 'Calliope L Dark Red' (45%). Thirty days after placing the cuttings in cuttings trays, we evaluated root development. With grades 3 and 4, the best rooting has got varieties 'Tango Dark Red' and 'Ville de Paris Rot' (95%). The hanging variety 'Acapulco Cascade' was best rooted as it also had the highest sugar content, which tells us that the sugar content is key to better root development.

• Keywords: Pelargonium, varieties, cuttings, vegetative reproduction, rooting, chemical composition