Effect of Harvest Times and Irrigation Conditions of Jeju Red-fleshed Pitaya (Hylocereus polyrhizus) on Fruit Quality

Rina Lee; Myunghyup Oh; Jeongmin Lee; Dongeun Oh; Hyeonju Lee; Jonghoon Kang

doi:10.22698/jales.20240041

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2024 Vol.36, Issue 4 Preview Page Next Page

Research Article

Effect of Harvest Times and Irrigation Conditions of Jeju Red-fleshed Pitaya (Hylocereus polyrhizus) on Fruit Quality

31 December 2024. pp. 534-545

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Abstract

This study was conducted to provide data for cultivation and physiology research to improve the fruit quality of red-fleshed pitaya (Hylocereus polyrhizus) by investigating the effects of harvest time and irrigation conditions. To analyze the effect of harvest time on fruit quality, fruit quality characteristics were investigated from July to October. The irrigation conditions were divided into high- and low-water conditions to analyze changes in soil water potential and major free sugar composition of fruit. Pitaya is low in fructose and sucrose, which have high sweetness intensities in sensory evaluation, and high in glucose, which has a low sweetness intensity. These characteristics do not significantly enhance the consumption of red-fleshed pitaya, which exhibits lower sweetness intensity compared with other fruits with similar total soluble solids (TSS). Our results showed that the fruit length, width, weight, acidity, and firmness under high-water conditions showed no significant differences compared with those under low-water conditions. The sugar content was higher under low-water conditions than under high-water conditions in soil, and the increase in fructose and sucrose was higher than the increase in glucose. Our investigation showed that larger fruits tended to have higher TSS. The growth of larger fruits can be enhanced by removing excess flowers and smaller fruits. Thus, our results will provide useful information for establishing cultivation methods to improve the quality of red fleshed pitaya.

Keywords

Fruit quality

Harvest times

Irrigation

Red-fleshed pitaya

TSS

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Information

Publisher :Agriculture and Life Sciences Research Institute, Kangwon National University
Publisher(Ko) :None
Journal Title :Journal of Agricultural, Life and Environmental Sciences
Journal Title(Ko) :농업생명환경연구
Volume : 36
No :4
Pages :534-545
Received Date : 2024-10-14
Revised Date : 2024-12-11
Accepted Date : 2024-12-12
DOI :https://doi.org/10.22698/jales.20240041

Journal of Agricultural, Life and Environmental Sciences ISSN:2233-8322(Print) 2508-870X(Online)

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