The effects of preharvest 1-methylcyclopropene (Harvista) treatments on harvest maturity of 'Santa Maria' pear cultivar
In this research, the effects of preharvest 1-methylcyclopropene (1-MCP) (Harvista) treatments on fruit drop, harvest maturity due to fruit quality parameters and shelf life of Santa Maria pear cultivar were studied. For this purpose, Harvista treatments at doses of 50, 100, 150 and 200 g ha‑1 were applied to Santa Maria pear cultivar with the comparison of naphthalene acetic acid in Çanakkale, Biga region, Turkey. Samplings were carried out on trees 1 day before and 7, 14, 28 and 42 days after applications, respectively. Fruit drop rate, flesh firmness, soluble solids content, starch degradation, titratable acidity, skin colour, and total phenolic compounds were evaluated after each sampling date. Furthermore, fruits were kept at 20-22°C temperature and 50-60% relative humidity conditions as shelf life for 7 and 14 days to determine the ethylene production. According to the results, Harvista applications with 150 and 200 g ha‑1 doses were found as the most positive applications because of preventing fruit drop and minimizing the changes of quality parameters. Harvest maturity could be prolonged for 28 days with these application doses. Harvista could be a good alternative for enlarging the harvest period on Santa Maria pears.
Sakaldas, M., Gundogdu, M.A. and Gur, E. (2019). The effects of preharvest 1-methylcyclopropene (Harvista) treatments on harvest maturity of 'Santa Maria' pear cultivar. Acta Hortic. 1242, 287-294
'Santa Maria' pear, 1-MCP, application dose, fruit drop, quality parameters, ethylene production