A comprehensive analysis of gibberellic acid and prohydrojasmon treatments for mitigating rind puffing and rind disorder of early-maturing cultivar of satsuma mandarin

IF 2.4 3区 农林科学 Q1 Agricultural and Biological Sciences Horticulture Environment and Biotechnology Pub Date : 2024-01-19 DOI:10.1007/s13580-023-00595-y
Ittetsu Yamaga, Chisato Tonooka, Yuji Emoto
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Abstract

Increasing climatic temperatures and precipitation in the autumn may lead to increased injury and decay during extended storage of mandarin fruits. In this study, we examined the internal fruit quality, rind color, ultrastructure of the peel, inorganic composition of albedo, and flavonoid contents of the flavedo at harvest in the early-maturing cultivar satsuma mandarin ‘Miyagawa Wase.’ Fruits were treated with a mixture of gibberellic acid (GA; 25 mg L− 1) and prohydrojasmon (PDJ; 100 mg L− 1) denoted as (GP), only GA (25 mg L− 1), and only PDJ (100 mg L− 1) in August and September. Specific gravity and titratable acidity (TA) of the GA-treated fruits were higher than those of the non-GA-treated fruits (PDJ and control), while lower ratios of soluble solids content (SSC) and TA were observed. The GA-treated fruits’ L* (lightness), a* (bluish-green/red-purple hue component), b* (yellow-blue hue component), and C* (chroma) values were significantly lower than those of non-GA-treated fruits. In particular, a* value of GP (0.5) was significantly lower than that of control (24.6). The non-GP-treated fruits had higher epicuticular wax on the peel than GP-treated fruits. The distributions of N, P, and Mg in the GA-treated fruits were higher than those in non-GA-treated fruits. Nobiletin and tangeretin contents of the flavedo were the highest in the GP treatment, followed by the GA, PDJ, and control treatments. The occurrence of rind disorder after 20 d of storage was the lowest in GP, whereas PDJ and control treatments showed 18% over. These results indicate that the combined treatment with GA and PDJ has a more substantial effect than treatment with only GA or PDJ in controlling peel ripening at harvest and rind disorder after storage in satsuma mandarin fruits.

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赤霉素和原氢茉莉酮处理减轻早熟沙糖桔果皮膨大和果皮紊乱的综合分析
秋季气候温度和降水量的增加可能会导致柑橘果实在长期贮藏过程中损伤和腐烂程度加剧。在这项研究中,我们考察了早熟栽培品种萨摩蜜柑'Miyagawa Wase'在收获时的果实内部质量、果皮颜色、果皮的超微结构、反皮层的无机成分以及黄酮类化合物的含量。在 8 月和 9 月,分别用赤霉素(GA;25 毫克/升-1)和原氢茉莉酮(PDJ;100 毫克/升-1)的混合物(GP)、仅 GA(25 毫克/升-1)和仅 PDJ(100 毫克/升-1)处理果实。经 GA 处理的果实的比重和可滴定酸度(TA)高于未经 GA 处理的果实(PDJ 和对照组),而可溶性固形物含量(SSC)和可滴定酸度(TA)的比率则较低。经 GA 处理的水果的 L*(亮度)、a*(蓝绿色/红紫色调成分)、b*(黄蓝色调成分)和 C*(色度)值明显低于未经 GA 处理的水果。其中,GP 的 a* 值(0.5)明显低于对照组(24.6)。非 GP 处理的果实果皮上的表皮蜡比 GP 处理的果实高。GA处理果实中的氮、磷、镁分布高于非GA处理果实。GP处理的黄皮中金莲花素和桔皮素含量最高,其次是GA、PDJ和对照处理。贮藏 20 天后,GP 处理的果皮失调发生率最低,而 PDJ 和对照处理的果皮失调发生率超过 18%。这些结果表明,在控制沙糖桔果实采收时的果皮成熟和贮藏后的果皮失调方面,GA 和 PDJ 的联合处理比只用 GA 或 PDJ 的处理具有更显著的效果。
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来源期刊
Horticulture Environment and Biotechnology
Horticulture Environment and Biotechnology Agricultural and Biological Sciences-Horticulture
CiteScore
4.30
自引率
4.20%
发文量
0
审稿时长
6 months
期刊介绍: Horticulture, Environment, and Biotechnology (HEB) is the official journal of the Korean Society for Horticultural Science, was launched in 1965 as the "Journal of Korean Society for Horticultural Science". HEB is an international journal, published in English, bimonthly on the last day of even number months, and indexed in Biosys Preview, SCIE, and CABI. The journal is devoted for the publication of original research papers and review articles related to vegetables, fruits, ornamental and herbal plants, and covers all aspects of physiology, molecular biology, biotechnology, protected cultivation, postharvest technology, and research in plants related to environment.
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