Apricots with low IAD index at harvest were more liked by the customer

Over 4000 ?CluthaGold? apricot fruit were assessed at harvest in a range of trials carried out in the Central Otago region of New Zealand over a four-year period. The data collected included non-destructive measurements of skin and flesh colour, and destructive assessments of flesh firmness (FF), soluble solids concentration (SSC) and fruit dry matter concentration (DMC). The strongest correlations for these data were for skin background colour and flesh colour with FF. SSC was not strongly correlated with FF, but was strongly correlated to DMC. There was very little difference in the correlation between SSC and DMC from different orchards, suggesting that SC could be used to predict DMC from any orchard using a single correlation equation.In 2013, the DA meter, which measures chlorophyll content (IAD index),was evaluated as a potential non-destructive fruit quality predictor at harvest. The IAD index at harvest was significantly correlated with FF, SSC and DMC for ?CluthaGold? fruit. Additional ?CluthaGold? fruit were separated into one of three ranges of IAD index and stored at 0?C. Fruit of mixed maturity were also stored as a control. Fruit were assessed immediately following 2, 4 or 6 weeks of cold storage or after 4 days at 20 ?C for FF, gel formation, mealiness, juiciness and liking by a small trained panel. Fruit that had low IAD index at harvest were significantly softer, developed less gel and were more liked than the other treatments but there was no difference in mealiness or juiciness. SourcesFRUIT QUALITY CORRELATIONS WITH ?CLUTHAGOLD? APRICOTScofield, C1, Stanley, J1,Marshall, R1Claire.Scofield@plantandfood.co.nz1The New Zealand Institute for Plant & Food Research Limited, Alexandra, New Zealand IHC 2014, International Horticulture Congress, 17-22 August 2014, Brisbane,http://www.ihc2014.org/ Picture by www.cluthagold.co.nzKey wordsAlbaricoque?? ?damasco?? ?apricot?? ?appelkoos?? ??????? ???? ?abrikoto?? ?abricot?? ??????????? ????????? ?abrikoos?? ?albicocca?? ?morela?? ??? ?????????? ?kay?s??? ????????? ?Aprikose?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?Poscosecha?? ?postcosecha?? ?postharvest?? ?na-oes?? ??? ??? ???????? ????? ??? ?post-r?colte?? ????? ?? ??????????? ??? ?na-oogst?? ?post-raccolta?? ?Obr?bka po?? ?p?s-colheita?? ????????????????? ?hasat sonras??? ??? ?Ernte?? ????????????????? ????? ????????????? ?postcollita?? ?poskliz?ov頠 ????? ??? ??? ??? ?nakon branja?? ?pozberov頠 ??? ?obdelovanje zemlje po?? ?post-colleita?? ?????? ??????? ?pascapanen?? ??il?onn postharvest?? ??????? ?p?c ra?as?? ?derliaus apdirbimas po?? ?lepas tuai?? ??? ?? ???????? ?post-recoltare?? ??????? ??????? ???????????????????? ?????????????? ?????????????????? ?sau thu ho?ch?? ?????????????????? ?zangemva kwenkathi yokuvuna?? ????