02328naa a2200253 a 450000100080000000500110000800800410001910000230006024501620008326000090024552015010025465000190175565000210177465000340179565000370182965000290186665000150189565000190191065000230192970000190195270000190197170000200199077300640201011360022025-10-16       2025    bl uuuu     u00u1 u    #d1 aAMARANTE, C. V. T.  aPreharvest Application of 1-Methylcyclopropene (1-MCP) to Schedule the Harvest and Maintain the Storage Quality of ?Maxi Gala? Apples.h[electronic resource]  c2025  aThis three-year study in southern Brazil assessed the effectiveness of the preharvest spraying of 1-methylcyclopropene (1-MCP; Harvista? 1.3 SC) in reducing the fruit drop, delaying the maturity, and maintaining the postharvest quality of ?Maxi Gala? apples. 1-MCP was sprayed at 0, 75, 125, 175, and 225 mg a.i. L−1 seven days before the anticipated harvest time (DBAH). Aminoethoxyvinylglycine (AVG; Retain??), a commercial control, was applied at 124 mg a.i. L−1 28 DBAH. After harvest, the fruit were stored for seven months under a controlled atmosphere (CA; 1.5 kPa O2 and 2.5 kPa CO2 at 0.8 ?? 0.6 ??C/RH of 94?95%), followed by seven days of shelf life (23 ?? 1 ??C/RH of 70?80%). Increasing 1-MCP concentrations significantly reduced preharvest fruit drop, and 1-MCP at 175 and 225 mg L−1 was more effective over time than AVG. While 1-MCP, like AVG, delayed red color development, fruit treated with 175 and 225 mg L−1 still achieved over 44.5 N firmness after CA storage, even when harvested 28 days after spraying, allowing for red color development and an average 12 g fruit weight increase. 1-MCP at ≥75 mg L−1 was more efficient than AVG in maintaining flesh firmness, while at 225 mg L−1, it also preserved higher titratable acidity and a lower soluble solid content after CA storage. Thus, the preharvest spraying of 1-MCP is a valuable tool for growers to schedule the harvest and maintain the postharvest quality of ?Maxi Gala? apples.  aflesh firmness  afruit abscission  ainhibition of ethylene action  ainhibition of ethylene synthesis  aMalus ?? domestica Borkh  askin color  asoluble solids  atitratable acidity1 aARGENTA, L. C.1 aFREITAS, S. T.1 aSTEFFENS, C. A.  tAgronomy, Basileia, Su????agv. 15, n. 2151, p. 1-16, 2025.