纳米银、腐殖酸和芦荟凝胶处理延长康乃馨花瓶寿命

IF 1.1 Q3 HORTICULTURE
A. B. El-Attar, W. R. Sakr
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引用次数: 6

摘要

标准石竹花(Dianthus caryophyllus cv.;多佛)在清晨刷漆阶段收获,在4°C预冷6小时,然后在干燥条件下移至实验室。花称重,并处理24小时与银纳米粒子(AgNPs)在0,5或10 ppm的塑料桶。脉冲处理后,切花被转移到500 mL的玻璃罐中,其中含有300 mL的保存溶液,分别包括200,400或600ppm的腐植酸和2.5%,5.0%或7.5% (w/v)的芦荟凝胶,直到实验结束(当花的颜色开始褪色,花瓣开始滚动)。用蒸馏水作为对照,制备被试溶液。包括对照组在内的所有处理均添加2%蔗糖。与对照(蒸馏水,最小值)相比,在花瓶溶液中添加所有防腐剂显著增加了切花的所有研究特征。纳米银处理有潜力作为保鲜溶液用于改善康乃馨的采后花瓶寿命和质量。瓶内细菌数量减少,瓶内寿命、相对鲜重、瓶液吸收量、花径、叶片总叶绿素、叶片和花瓣总碳水化合物和总酚含量增加。使用5 ppm AgNPs + 5.0%芦荟凝胶溶液获得最佳效果,其次是5 ppm AgNPs +7.5%芦荟凝胶溶液。芦荟凝胶在单独使用或与AgNPs联合使用时,以5.0%水平的芦荟凝胶效果优于腐植酸。纳米银浓度为5ppm时,单次处理的效果优于10ppm。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Extending vase life of carnation flowers by postharvest nano silver, humic acid and Aloe Vera gel treatments
Abstract Standard Carnation flowers (Dianthus caryophyllus cv. Dover) were harvested at the paint brush stage in the early morning, pre-cooled at 4° C for 6-h then moved under dry conditions to the laboratory. Flowers were weighted and treated for 24-h with silver nanoparticles (AgNPs) at 0, 5 or 10 ppm in plastic buckets. After pulsing treatments, cut flowers were transferred to 500 mL glass jars containing 300 mL of preservation solution treatments including, individually, humic acid at 200, 400 or 600 ppm and Aloe vera gel at 2.5%, 5.0% or 7.5% (w/v) till the end of the experiment (when flower color began to fade, petals began to roll). Distilled water was used for the control and to prepare the tested solutions. 2% sucrose was added to all treatments including the control. Addition of all preservatives to vase solutions significantly increased all the studied characteristics of cut flowers compared to control (distilled water, least values). Nanosilver treatments have the potential to be used as preservative solutions for improving postharvest vase life and quality of carnation flowers. An increment in vase life, relative fresh weight, vase solution uptake, flower diameter as well as total chlorophylls in leaves, total carbohydrates and total phenols in leaves and petals was observed, in addition to a decrease in bacterial counts in vase solution. Best results were obtained using 5 ppm AgNPs + 5.0% Aloe vera gel followed by 5 ppm AgNPs +7.5% Aloe vera gel solutions. Aloe vera gel, especially 5.0% level, showed better results than humic acid when used alone or combined with AgNPs. Nanosilver at 5 ppm recorded better results than 10 ppm when used as a single treatment.
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来源期刊
Ornamental Horticulture
Ornamental Horticulture Agricultural and Biological Sciences-Horticulture
CiteScore
2.20
自引率
14.30%
发文量
30
审稿时长
50 weeks
期刊介绍: The Journal ORNAMENTAL HORTICULTURE - OH (Revista Brasileira de Horticultura Ornamental) is an official publication of the Brazilian Society for Floriculture and Ornamental Plants (Sociedade Brasileira de Floricultura e Plantas Ornamentais) - SBFPO Short title of the journal: ORNAM. HORTIC. This Journal aim to publish technical and scientific researches in floriculture, ornamental plants, landscaping and landscapes from members of this Society and others. The manuscripts can be submitted in portuguese, but publication must be in English language (U.S.). All the manuscripts submitted to Ornamental Horticulture (Revista Brasileira de Horticultura Ornamental) - OH must not have been submitted or published at the same time, partial or totally, to other journal. It is allowed to read, download, copy, distribute, print, search, or link to parts or the full texts to use them for any other lawful purpose. The reproduction of articles published in this journal is authorized, under the condition that the source is acknowledged.
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