Storage behaviour of ‘Reinette du Canada’ apple cultivars

Abstract

Apple (Malus domestica Borkh) cultivars 'Reinette du Canada' (RC) and 'Reinette Grise du Canada' (RG) have been declared throughout the European Community as protected designation of origin (PDO) 'Manzana Reineta del Bierzo'. The aim of this research was to find out the influence of storage technique on quality of PDO apple cultivars 'RC' and 'RG', and to evaluate the absence of traditional post-harvest treatments in these high quality cultivars in order to reduce pesticide residues in fruit. Apples were kept in standard cold storage or in controlled atmosphere (CA). At harvest time and during storage, fruit from each treatment and storage technique was analysed to determine quality parameters as well as disorder incidence. CA storage has been useful to delay the maturity process of PDO apple cultivars 'RC' and 'RG' and to reduce the incidence of storage disorders. Apple cultivars had different behaviour so 'RG' cultivar showed lower weight loss (5.1%), shrivelling (6.4%) and bitter-pit (11%) than 'RC' cultivar (8.3%, 60.8% and 34%, respectively) at the end of storage. The response of both cultivars to the treatment was quite different, so 'RG' adapted better than 'RC' to the absence of postharvest treatments. Untreated 'RG' showed more brightness, total soluble solids (TSS) and TSS:titratable acidity values than treated 'RG', factors that could improve consumer acceptance. Effectiveness of postharvest treatment in terms of bitter-pit was lower in 'RG' than in 'RC'. These results indicate that 'RG' would adapt better to storage without the use of chemical postharvest treatments.Additional key words: cold storage, controlled atmosphere, Malus domestica, postharvest treatment, storability. ResumenComportamiento en conservación de cultivares de manzana 'Reineta del Canadá'Los cultivares de manzana (Malus domestica Borkh) 'Reineta del Canadá' (RC) y 'Reineta Gris del Canadá' (RG) han sido declarados en la Unión Europea como Denominación de Origen Protegida (DOP) 'Manzana Reineta del Bierzo'. El objetivo de este trabajo fue averiguar la influencia de la técnica de conservación en la calidad de los cultivares de la DOP 'Manzana Reineta del Bierzo', 'RC' y 'RG', así como evaluar la ausencia de los tradicionales tratamientos postcosecha en estos cultivares de alta calidad con objeto de reducir los residuos finales en el fruto. Las manzanas fueron almacenadas en frío normal o en atmósfera controlada. En recolección y durante la conservación frigorífica se determinaron los parámetros de calidad y la incidencia de enfermedades. La técnica de atmósfera controlada fue útil para retrasar la maduración de los cultivares DOP 'Manzana Reineta del Bierzo' 'RC' and 'RG' y para reducir la incidencia de alteraciones durante conservación. Los cultivares tuvieron diferente comportamiento, de manera que 'RG' mostró menor pérdida de peso (5,1%), arrugamiento (6,4%) y bitter-pit (11%) que 'RC' (8,3%, 60,8% y 34%, respectivamente) al final de la conservación. La respuesta de los cultivares ante el tratamiento fue diferente, pues '...

Influence of Different Calcium Compounds and Fruit Development Stages on Yield, Fruit Quality and Shelf Life of ‘Granny Smith’ Apples

“…In the second year, the effect of Ca solution on fruits TA was significant after three months storage and fruits received Folical had more TA Agricultural Research & Technology: Open Access Journal than control (Figure 7). As previous findings have reported [35,36] the amount of TA in the fruits reduced during storage. This reduction did not have a clear trend between control and treated fruits.…”

“…In the second year, late-season spray had the higher TA compared to the early-season spray (Figure 6). Various results have been reported on the effect of calcium on the amount of TA [25,36,37]. In our study (Table 2), no specific trend was observed and the effect of compounds on TA levels varied depending on the foliar application time.…”

Simple Sequence Repeat Characterisation of Traditional Apple Cultivars (Malus domestica Borkh.) Grown in the Region of Madrid (Central Spain)

“…Five triploids accessions are labelled as 'Reineta'. The notable presence of 'Reineta' accessions in several municipalities is explained by two facts: first, its ethnobotanical importance in the past (Guerra et al 2010) and second, its medium to late blooming (Pina 2005). As a result, it is possible to speculate that 'Reineta' might be suitable in mountainous and cold environments as it was suggested (Pina et al 2014).…”

Influence of film and modified atmosphere on sensory quality of roasted apple cv. Reineta

“…'Reineta', 'Reinette du Canada' and 'Reinette Grise du Canada' apple cultivars are traditional fruits of El Bierzo (León, northwest of Spain) (Guerra et al, 2010). 'Reineta' is one of the two Spanish apples that is protected throughout the community as a Protected Designation of Origin (PDO), 'Manzana Reineta del Bierzo' (Commission Regulation (EC) Nº 2601/2001).…”