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Effect of cold storage on the postharvest quality of different Tarocco sweet orange clonal selections
Scientia Horticulturae ( IF 3.9 ) Pub Date : 2021-04-12 , DOI: 10.1016/j.scienta.2021.110167
Maria Concetta Strano , Silvia Di Silvestro , Maria Allegra , Giuseppe Russo , Marco Caruso

Fruits of sixteen Tarocco sweet orange (Citrus sinensis [L.] Osbeck) clonal selections were compared for their long-period cold storage aptitude, for fresh fruit consumption. Selections were evaluated, for two consecutive seasons, at harvest (T0) and after 30 (T30), 60 (T60) days of storage at 5 ± 1 °C and 85–90% relative humidity (RH), followed by 7 days of shelf-life at 20±2 °C (T60+7). The following parameters were evaluated: fruit weight, peel and pulp color, initial and residual deformation, elasticity, firmness, juice yield, TSS, pH, TA, total anthocyanin content, and for each control: weight loss and physiological disorders (chilling injury and aging). The selections showed significant variability regarding the physiological disorders, especially at T60+7 with a range of 0.0–0.6 for chilling injury index and a range of values of 0–63% for aging. At T60+7 the weight loss range was between 10.0–14.3%. Regarding overall qualitative parameters, relevant changes were observed for firmness which decreased during the storage, with values ranging from 2.58-5.28 (T0) to 2.56–4.41 (T60+7), and for the anthocyanins which increased from a range of 1.67–39.71 (T0) to 30.47–114.86 mg/L (T60+7), with different values depending on the clonal selections. Based on our results, the clonal selections that showed a better aptitude to long-period cold storage were Gangi, 2B-12–9, Pedalino and Amantea, together with the reference cultivars Meli and Messina. These clones resulted particularly tolerant to chilling injury and aging, they maintained the firmness and the most relevant qualitative traits (TSS and TA) and showed the best fruit external appearance after one week of shelf-life (T60+7).



中文翻译:

冷藏对不同Tarocco甜橙无性系选择采后品质的影响

十六种Tarocco甜橙(柑桔)的果实[L.] Osbeck)比较了克隆选择的长期冷藏能力和新鲜水果的消费量。在收获期(T0)以及在30(T30),在5±1°C和85-90%相对湿度(RH)下储存60(T60)天后,连续两个季节对选择进行评估。在20±2°C(T60 + 7)下的保质期。评估了以下参数:水果重量,果皮和果肉颜色,初始和残余变形,弹性,硬度,果汁产量,TSS,pH,TA,总花青素含量,并且对于每个对照:体重减轻和生理失调(冷害和老化)。这些选择显示出与生理疾病有关的显着变异性,尤其是在T60 + 7时,冷害指数在0.0-0.6的范围内,而衰老则在0-63%的范围内。在T60 + 7时,减肥范围为10。0–14.3%。关于总体定性参数,在储存过程中,硬度下降了相关的变化,范围从2.58-5.28(T0)到2.56–4.41(T60 + 7),而花色苷从1.67–39.71的范围增加。 (T0)到30.47–114.86 mg / L(T60 + 7),根据克隆选择而有所不同。根据我们的结果,显示长期冷藏能力更好的克隆选择是Gangi,2B-12–9,Pedalino和Amantea,以及参考品种Meli和Messina。这些克隆特别耐冷害和衰老,它们保持坚固和最相关的定性特征(TSS和TA),并在保质期一周(T60 + 7)后表现出最好的果实外观。在存储过程中,硬度的相关变化有所降低,范围从2.58-5.28(T0)到2.56–4.41(T60 + 7),而花色苷从1.67–39.71(T0)范围增加到30.47。 –114.86 mg / L(T60 + 7),根据克隆选择而有所不同。根据我们的结果,显示长期冷藏能力更好的克隆选择是Gangi,2B-12–9,Pedalino和Amantea,以及参考品种Meli和Messina。这些克隆特别耐冷害和衰老,它们保持坚固和最相关的定性特征(TSS和TA),并在保质期一周(T60 + 7)后表现出最好的果实外观。在存储过程中,硬度的相关变化有所降低,范围从2.58-5.28(T0)到2.56–4.41(T60 + 7),而花色苷从1.67–39.71(T0)范围增加到30.47。 –114.86 mg / L(T60 + 7),根据克隆选择而有所不同。根据我们的结果,显示长期冷藏能力更好的克隆选择是Gangi,2B-12–9,Pedalino和Amantea,以及参考品种Meli和Messina。这些克隆特别耐冷害和衰老,它们保持坚固和最相关的定性特征(TSS和TA),并在保质期一周(T60 + 7)后表现出最好的果实外观。花青素从41(T60 + 7)(T60 + 7)增加到30.47-114.86 mg / L(T60 + 7),范围从1.67–39.71(T0)增加到30.47–114.86 mg / L(T60 + 7),具体取决于克隆选择。根据我们的结果,显示长期冷藏能力更好的克隆选择是Gangi,2B-12–9,Pedalino和Amantea,以及参考品种Meli和Messina。这些克隆特别耐冷害和衰老,它们保持坚固和最相关的定性特征(TSS和TA),并在保质期一周(T60 + 7)后表现出最好的果实外观。花青素从41(T60 + 7)(T60 + 7)升至1.67–39.71(T0)至30.47–114.86 mg / L(T60 + 7),其值取决于克隆选择。根据我们的结果,显示长期冷藏能力更好的克隆选择是Gangi,2B-12–9,Pedalino和Amantea,以及参考品种Meli和Messina。这些克隆特别耐冷害和衰老,它们保持坚固和最相关的定性特征(TSS和TA),并在保质期一周(T60 + 7)后表现出最好的果实外观。对长期冷藏的适应性更好的克隆选择是Gangi,2B-12-9,Pedalino和Amantea,以及参考品种Meli和Messina。这些克隆特别耐冷害和衰老,它们保持坚固和最相关的定性特征(TSS和TA),并在保质期一周(T60 + 7)后表现出最好的果实外观。对长期冷藏的适应性更好的克隆选择是Gangi,2B-12-9,Pedalino和Amantea,以及参考品种Meli和Messina。这些克隆对寒冷伤害和衰老具有特别的耐受性,它们保持坚挺和最相关的定性特征(TSS和TA),并且在保质期一周(T60 + 7)后表现出最好的果实外观。

更新日期:2021-04-12
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