ΠΑΡΑΓΟΝΤΕΣ ΠΟΥ ΕΠΗΡΕΑΖΟΥΝ ΤΗ ΒΛΑΣΤΟΓΕΝΕΣΗ ΚΑΙ ΡΙΖΟΓΕΝΕΣΗ IN VITRO ΤΟΥ ΥΠΟΚΕΙΜΕΝΟΥ ΡΟΔΑΚΙΝΙΑΣ GF-677 ΚΑΙ ΤΗΣ ΠΕΤΟΥΝΙΑΣ (PETUNIA HYBRIDA)

THE FACTORS STUDIED IN THIS PH.D THESIS WHICH AFFECT PROLIFERATION AND ROOTING OF IN VITRO CULTURES ARE THE PLANT SPECIES, THE KIND OF PLANT MATERIAL USED, THE TIME OF TANSPLANTING, THE GROWTH REGULATORS USED AND IN GENERAL THE CHEMICAL COMPOSITION OF CULTURE MEDIUM. OTHER FACTORS INCLUDE TEMPERATURE AND CHEMICAL COMPOSITION OF THE ATMOSPHERE OF CULTURE VESSELS, I.E. CONCENTRATION OF ETHYLENEAND CO2. FOR BETTER UNDERSTANDING OF THE EFFECT OF ETHYLENE AND CO2 ON PROLIFERATION AND ROOTING, TWO SPECIES TESTED, NAMELY THE PEACH-ALMOND HYBRID (GF-677)WHICH IS WOODY SPECIES AND PETUNIA HYBRIDA PLANTS (A HERBACEOUS AND ANUAL SPECIES). FROM THIS RESEARCH WE CONCLUDED THAT THE MOST SUITABLE PLANT PART FOR THEINITIATION OF IN VITRO CULTURES OF GF-677 ARE THE HERBACEOUS SHOOT TIPS DERIVED FROM TREES IN CONTAINERS GROWN INTO A GREENHOUSE, DURING WINTER. FROM THE TESTED CYTOKININS BENZYLADENINE (BΑ) GAVE A GREATEST NUMBER OF PLANTLETS IN COMPARISON TO 2IP AT 1 MG/1. HOWEVER, 2IP GAVE LONGER PLANTLETS. THE PLANTLETS OF GF-677 START TO ROOT 12 DAYS AFTER TRANSFERING TO THE ROOTING MEDIUM CONTAINING IBA OR A-NAA. THE PERCENTAGE OF ROOTING WAS 100% AND IBA PRODUCED MORE ROOTS PER PLANT. WHEN SENESCENT CULTURES OF GF-677 WERE EXPOSED TO 3 C FOR 3 WEEKS THEIR PROLIFERATION RATE INCREASED TO 17,6 SHOOTS/CULTURE. ON THE CONTRARY EXPOSURE TO 22 C HAD AS A CONSEQUENCE THE DEATH OF SENESCENT CULTURES. WHEN THE CULTURES WERE PROVIDED WITH ETHYLENE AT A CONCENTRATION OF 0,1 PPM OR AFTER CLOSURE OF CULTURE VESSELS WITH RUBBER STOPPERS THE RATE OF PROLIFERATION AND THE PERCENTAGE OF ROOTING INCREASED. PETUNIA RESPONDED TO 10 PPM ETHYLENE AND GAVE 5 TIMES MORE ROOTS IN COMPARISON TO ZERO ETHYLENE. CO2 AT A CONCENTRATION OF 0,5% IN THEATMOSPHERE OF CULTURE VESSELS OF GF-677 INCREASED BY 50% THE WEIGHT OF CULTURES AND IN SOME CASES THE NUMBER AND LENGTH OF SHOOTS.

Grantor dc:publisher

Aristotle University Of Thessaloniki (AUTH)

Year dc:date

1989

Authors dc:creator

• Δημάση-Θεριού, Κορτέσσα
• Dimassi-Theriou, Kortessa

• ΑΥΞΗΤΙΚΕΣ ΟΥΣΙΕΣ
• ΒΛΑΣΤΟΓΕΝΕΣΗ ΚΑΙ ΡΙΖΟΓΕΝΕΣΗ ΜΙΚΡΟΜΟΣΧΕΥΜΑΤΩΝ
• ΕΠΙΔΡΑΣΗ CO2 ΣΤΟΝ ΜΙΚΡΟΠΟΛΛΑΠΛΑΣΙΑΣΜΟ
• ΕΠΙΔΡΑΣΗ ΘΕΡΜΟΚΡΑΣΙΑΣ ΣΤΗΝ ΠΑΡΑΓΩΓΗ ΒΛΑΣΤΩΝ
• Η ΓΗΡΑΝΣΗ ΚΑΛΛΙΕΡΓΕΙΩΝ IN VITRO ΤΟΥ GF-677
• ΜΙΚΡΟΠΟΛΛΑΠΛΑΣΙΑΣΜΟΣ ΟΠΩΡΟΦΟΡΩΝ
• ΡΟΛΟΣ ΑΙΘΥΛΕΝΙΟΥ ΣΤΟΝ ΜΙΚΡΟΠΟΛΛΑΠΛΑΣΙΑΣΜΟ
• ΥΠΟΚΕΙΜΕΝΑ ΡΟΔΑΚΙΝΙΑΣ GF-677
• GROWTH REGALATORS
• MICROPROPAGATION OF FRUIT TREES
• PEACH-ROOTSTOCKS GF-677
• PROLIFERATION AND ROOTING OF MICROCUTTINGS
• ROLE OF ETHYLENE IN MICROPROPAGATION
• TEMPERATURE EFFECT ON SHOOT PROLIFERATION
• THE SENESCENCE OF IN VITRO CULTURES OF GF-677
• Γεωπονικές Επιστήμες και Κτηνιατρική
• Γεωπονία, Δασολογία και Αλιεία
• Agricultural and Veterinary Sciences
• Agriculture, Forestry and Fisheries

Language dc:language

gre

Identifier

10.12681/eadd/1168

OAI identifier oai:identifier

oai:10442/1168