Effect of preharvest aminoethoxyvinylglycine spraying time on fruit quality of 'Nagasawa Hakuho' peach (Prunus persica Batsch) during shelf-life
Lee, U.-Y.; Ahn, Y.; Soo, H.Y.; Chun, J.; 왕무화; 오광석; 이은구
Korean Journal of Agricultural Science 39(4): 503-509
2012
ISSN/ISBN: 2466-2402 Accession: 070458682
This research aimed to investigate the effect of preharvest spray of aminoethoxyvinylglycine (AVG) on fruit quality of 'Nagasawa Hakuho' peach (Prunus persica Batsch). The efficacy of various concentrations of AVG (75 and 150 mg/L), which inhibits the ethylene biosynthesis, was evaluated under field conditions. Treatments were performed 21, 14 and 7 days before harvest, respectively. Fruit weight, flesh firmness, soluble solids content, acidity, ethylene production, respiration rate and skin color difference were determined at harvest time and during shelf-life at 25℃. Results indicated that the most appropriate timing of AVG spraying was 21 days before harvest at the concentration of 75 mg/L as shown higher firmness at harvest time and lower ethylene production and respiration rate during shelf-life. Spraying of AVG during near harvest period (14 to 7 days before harvest) inhibited fruit growth slightly, independent of concentration and did not affect fruit quality in 'Nagasawa Hakuho' peach.