Preharvest Putrescine Application Extends the Shelf Life and Maintains the Pear Fruit Quality

IF 2.4 3区 农林科学 Q2 HORTICULTURE International Journal of Fruit Science Pub Date : 2022-05-04 DOI:10.1080/15538362.2022.2068733
Veer Singh, S. Jawandha, P. Gill, Davinder Singh
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Abstract

ABSTRACT Pear fruits are climacteric in nature and remain biologically active due to continuous respiration, transpiration, and other biochemical processes even after harvest. Under ambient conditions of north-western India, pear fruits have a short shelf life. An experiment was conducted to enhance the shelf life of pear fruits cv. Punjab Beauty using preharvest sprays of putrescine (PUT) @ 1 mM, 2 mM & 3 mM. Mature fruits from PUT treated and control plants were harvested and stored at ambient conditions (32 ± 2 ℃, 78 ± 5% RH). Periodical observations for various physicochemical parameters and enzymatic activities were taken on 0, 3, 6, 9, 12 and 15 days after ambient storage. As compared to control, 2 and 3 mM PUT treatments resulted into a reduction in weight loss (WL), spoilage along with retention of higher firmness, soluble solid content (SSC), titratable acidity (TA), and starch content in stored pear fruits. During storage, these treatments had also reduced the fruit softening by reducing the activities of cell wall degrading enzymes like pectin methylesterase (PME) and cellulase. So, it could be inferred that PUT treatment of 2 mM & 3 mM was effective to enhance the shelf life of pear fruits at ambient conditions with acceptable quality.
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采前施用腐胺可延长梨果实保质期,保持果实品质
梨果实在自然界中处于更年期,即使在收获后,由于持续的呼吸、蒸腾和其他生化过程,其生物活性仍保持不变。在印度西北部的环境条件下,梨的保质期很短。为提高梨果实的保质期,进行了保鲜试验。旁遮普美公司使用腐胺(PUT)在采收前喷洒1毫米、2毫米和3毫米。经过PUT处理的和对照植株的成熟果实在环境条件(32±2℃,78±5% RH)下收获并储存。在环境贮藏后的0、3、6、9、12和15天,定期观察各种理化参数和酶活性。与对照相比,2和3mm PUT处理导致贮藏梨果实的失重(WL)、腐败、硬度、可溶性固形物含量(SSC)、可滴定酸度(TA)和淀粉含量降低。在贮藏过程中,这些处理还通过降低果胶甲基酯酶(PME)和纤维素酶等细胞壁降解酶的活性来减缓果实的软化。因此,可以推断,在质量合格的环境条件下,2 mM和3 mM的PUT处理可以有效地延长梨果实的保质期。
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来源期刊
International Journal of Fruit Science
International Journal of Fruit Science Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
6.40
自引率
0.00%
发文量
64
审稿时长
10 weeks
期刊介绍: The International Journal of Fruit Science disseminates results of current research that are immediately applicable to the grower, extension agent, and educator in a useful, legitimate, and scientific format. The focus of the journal is on new technologies and innovative approaches to the management and marketing of all types of fruits. It provides practical and fundamental information necessary for the superior growth and quality of fruit crops. This journal examines fruit growing from a wide range of aspects, including: -genetics and breeding -pruning and training -entomology, plant pathology, and weed science -physiology and cultural practices -marketing and economics -fruit production, harvesting, and postharvest
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