Effect of storage temperature on storage efficacy, germination and physical characters of some paddy rice cultivars during different storage periods

Youssef Mohamed Katta, Mohamed Mohamed Kamara, Mohamed Saad Abd El-Aty, Waleed Hassan Elgamal, Ramadan Mohamed Soleiman, Kareem Mohamed Mousa, Takatoshi Ueno

Research output: Contribution to journalArticle

Abstract

Postharvest loss is a serious problem in rice, and the loss during storage period can account for the majority of the postharvest loss. Traditional methods of storing paddy rice are vulnerable to insect and fungal infestations, leading to a considerable deterioration in rice quality. Here we focus on low-temperature storage to improve the storage efficacy of rice. Laboratory experiments were conducted to appraise the effects of storage temperature (traditional, cold and freeze storage) and period (6, 12, 18 and 24 months) on the storage efficacy such as pest and fungal infestations, germination success and physical quality of rice grains, using 11 paddy rice cultivars. Insect and fungal infestations significantly increased whereas germination success and rice quality were reduced, with increasing storage periods. Traditional storage of rice grains resulted in the highest levels of insect and fungal infestations caused by rice weevil, Alternaria sp., Nigrospora oryzae and Fusarium spp., while germination success and rice quality were relatively low. In contrast, cold storage satisfactorily lowered insect and fungal infestations while maximizing 1000-grain weight, germination success, hulling, milling and head rice. Although freeze storage of rice grains minimized the infestation levels, the other efficacy indices were inferior to those of cold storage. The impacts of the storage temperature and period were complicated depending on rice cultivars, which suggested that a further improvement of efficacy was possible by choosing the best cultivar suitable for storage. It is concluded that the cold storage (5°C) can achieve the best storage efficacy to preserve the rice grains quality when storage period is up to 24 months.

Original languageEnglish
Pages (from-to)61-69
Number of pages9
JournalJournal of the Faculty of Agriculture, Kyushu University
Volume64
Issue number1
Publication statusPublished - Jan 1 2019

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Germination
storage temperature
storage time
germination
rice
Temperature
cultivars
Insects
cold storage
postharvest losses
insects
Oryza
Khuskia oryzae
hulling
Sitophilus oryzae
Weevils
Alternaria
storage quality
Fusarium
preserves

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science

Cite this

Effect of storage temperature on storage efficacy, germination and physical characters of some paddy rice cultivars during different storage periods. / Katta, Youssef Mohamed; Kamara, Mohamed Mohamed; Abd El-Aty, Mohamed Saad; Elgamal, Waleed Hassan; Soleiman, Ramadan Mohamed; Mousa, Kareem Mohamed; Ueno, Takatoshi.

In: Journal of the Faculty of Agriculture, Kyushu University, Vol. 64, No. 1, 01.01.2019, p. 61-69.

Research output: Contribution to journalArticle

Katta, Youssef Mohamed ; Kamara, Mohamed Mohamed ; Abd El-Aty, Mohamed Saad ; Elgamal, Waleed Hassan ; Soleiman, Ramadan Mohamed ; Mousa, Kareem Mohamed ; Ueno, Takatoshi. / Effect of storage temperature on storage efficacy, germination and physical characters of some paddy rice cultivars during different storage periods. In: Journal of the Faculty of Agriculture, Kyushu University. 2019 ; Vol. 64, No. 1. pp. 61-69.
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