生物调节剂对桔梗花序采后保护的影响

IF 1.2 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY
Cristiane Calaboni, R. Kluge, Ana Paula Preczenhak, C. F. Mattiuz
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引用次数: 0

摘要

切花以其美丽和各种各样的颜色和形状而闻名。然而,由于生理过程的强度导致衰老,它们在收获后很快失去了商业价值。本研究旨在评价生物调节剂对桔梗花采后寿命的影响。闪光深玫瑰),应用脉冲溶液24小时。6-苄基氨基嘌呤(BAP) 70 μM;5 μM赤霉素酸(GA3);10 μM的ABA;去离子水作为对照。对其膨松度、花发育、总糖和还原糖含量、呼吸速率、比色法、花青素含量、酚类化合物含量和苯丙氨酸解氨酶(PAL)酶活性进行了评价。与其他处理相比,BAP导致更高的PAL酶活性和更多的花青素积累。GA3处理在贮藏期间呼吸速率增加最多,导致大量花序出现萎蔫和衰老症状,降低采后品质。在第4天和第12天,由于总糖含量的增加,ABA处理使花的浮肿度和开放度增加,延缓了衰老,维持了呼吸速率。ABA的施用有利于柳菊采后花序质量的维持,但会降低花青素的含量,使花瓣颜色变浅。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Postharvest conservation of lisianthus inflorescences with bioregulators
Cut flowers are known for their beauty and variety of colors and shapes. However, they quickly lose their commercial value after harvest due to the intensity of physiological processes that result in senescence. This work aimed to evaluate the effects of bioregulators on the postharvest longevity of lisianthus flowers (Eustoma grandiflorum cv. Flare Deep Rose) by applying a pulsing solution for 24 hours. The treatments consisted of 70 μM of 6-benzylaminopurine (BAP); 5 μM of gibberellic acid (GA3); 10 μM of abscisic acid (ABA); and deionized water as control. Turgidity, floral development, total and reducing sugar contents, respiration rate, colorimetry, anthocyanin contents, phenolic compound contents, and phenylalanine ammonia-lyase (PAL) enzyme activity were evaluated. BAP resulted in higher PAL enzyme activity and greater accumulation of anthocyanins when compared to the other treatments. The treatment GA3 resulted in the highest increase in respiration rate during storage, causing a larger number of inflorescences with wilting and senescence symptoms, reducing postharvest quality. The treatment ABA resulted in greater turgidity and floral opening, delayed senescence, and maintained respiration rate due to the greater total sugar contents on the fourth and 12th days. The application of ABA contributes to the maintenance of inflorescence quality for lisianthus at postharvest, but it reduces anthocyanin contents, providing petals with lighter colors.
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来源期刊
Bragantia
Bragantia AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
2.40
自引率
8.30%
发文量
33
审稿时长
4 weeks
期刊介绍: Bragantia é uma revista de ciências agronômicas editada pelo Instituto Agronômico da Agência Paulista de Tecnologia dos Agronegócios, da Secretaria de Agricultura e Abastecimento do Estado de São Paulo, com o objetivo de publicar trabalhos científicos originais que contribuam para o desenvolvimento das ciências agronômicas. A revista é publicada desde 1941, tornando-se semestral em 1984, quadrimestral em 2001 e trimestral em 2005. É filiada à Associação Brasileira de Editores Científicos (ABEC).
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