Berry drop control and postharvest conservation of 'Isabel' grape treated with 1-MCP
Rosana Sousa Da Silva, Silvanda DE Melo Silva
Abstracts of 7th International Postharvest Symposium 2012 (IPS2012). 25-29 June, 2012. Putra World Trade Centre (PWTC), Kuala Lumpur, Malaysia. 238 pages.
2012
บทคัดย่อ
'Isabel' grapes from a commercial orchard in the Siriji Valley - PB were harvested at commercial maturity with the aim of evaluating the effect on quality of doses of I-MCP applied during 12 hours in sealed plastic boxes under room conditions (25 ± 2 °C and 75 ± 2% RH), during storage under modified atmosphere at room temperature. The experiment was carried out in a completely randomized design, in factorial scheme 4 x 7, with three replications, with four doses of 1-MCP (0, 500, 1000, and 2000 ppb) and seven evaluations (0, 2, 4, 6, 8, 10 and 12 days). The evaluations were soluble solids (SS), titratable acidity (TA), SS/TA ratio, pH, ascorbic acid, anthocyan ins, coloration (Lightness, a *, b *, chroma and 0 H), incidence of decay, mass loss, firmness, rachis appearance, and berry drop index. The SS, AT, SS/TA, L, Chroma, and incidence of decay were not affected by 1-MCP. The doses of 1-MCP influenced on pH, retention of ascorbic acid, increase of anthocyanins, rachis appearance, lower mass loss, and maintenance of firmness. The berry drop index decreased as the doses of 1-MCP were increased.