The effect of aerosol spraying with calcium-containing preparations on basic grape quality indicators of CV. Shokoladniy during long-term storage

Abstract

In this work the effect of post-harvesting aerosol spraying with calcium-containing preparations Master Green Ca (1.75 g/l) and Brentax KCa (2.5 g/l) on changes in the indicators of commercial quality and natural weight loss of grape cv. Shokoladniy in the dynamics of long-term storage was studied. The studies were carried out in 2019-2020. Experimental samples were collected on the 30th and 60th day of storage. It has been established that aerosol spraying contributed to a decrease in the natural loss of bunch weight by 5.7- 6.5%. The amount of total sugars in experimental samples decreased to the 60th day of storage by 15.3% and 10.2% compared to the control. The preparations positively impacted organoleptic indicators during the storage: the tasting assessment of experimental batches of grapes to the end of storage exceeded the control by 6.7-10.3%.