Published in Scientific Papers. Series B, Horticulture, Vol. LXIV, Issue 1
Written by Elena Ştefania IVAN, Oana Alina NIŢU, Ionuţ Ovidiu JERCA, Florin STĂNICĂ
Asimina triloba, the pawpaw, is one of the few fruit tree species native to the United States. The plant is native to eastern North America, growing spontaneously from the Gulf of Mexico till the Great Lakes. The tree produces large fruits, yellow-green colour, sweet and flavored. In Romania, the first plants were introduced in Transylvania in 1926 and have been grown locally, remaining unknown to the rest of the country. Starting with the year 2000, within the Faculty of Horticulture from Bucharest, there were cultivated several varieties and hybrids of pawpaw, in order to determine the suitability of this species for the establishment of new plantations in Romania. The fruits were harvested manually and stored in controlled atmosphere rooms with 1.5% CO2, at 4°C temperature and 90% relative humidity. During the 2 months storage period were identified several pathogens affecting the pawpaw fruit. The micromycetes identification was carried out by isolation and successive subculture on PDA medium culture (Potato Dextrose Agar), followed by incubation at 22°C in the thermostated chamber.
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