نوع مقاله : مقاله پژوهشی

نویسندگان

1 عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان هرمزگان

2 محقق مرکز تحقیقات آموزش کشاورزی ومنابع طبیعی استان هرمزگان

3 هیات علمی موسسه تحقیقات کشاورزی

چکیده

این پژوهش به منظور ارائۀ راهکارهای مناسب برای افزایش عمر انباری پیازدر استان هرمزگان اجرا شد. به منظور کیورینگ، ارقام پیاز پریماورا (Primavera) و تگزاس ارلی گرانو (Texas Early Grano) بهمدت دو روز در نور آفتاب قرار داده شدند. پیازها در توری پلاستیکی بسته‌بندی و به مدت سه ماه در سه انبار سنتی بهینه‌شده بادمای 2±33 درجه سلسیوس و رطوبت نسبی 4±49 درصد، انبار کنترل‌شده با دمای 1±9 درجه سلسیوس و رطوبت نسبی 5±65 درصد و انبار کنترل‌شده با دمای 1±5 درجه سلسیوس و رطوبت نسبی 5±70 درصد نگهداری شدند. هر 15 روز یک‌بار افت وزن، درصد جوانه‌زنی و لهیدگی، مواد جامد انحلال‌پذیر، مادۀ خشک، و سفتی بافتنمونه‌ها اندازه‌گیری شد. نتایج بررسی‌ها نشان داد در سه ماه انبارداری، تغییرات معنی‌داری در صفات کیفی هر دو رقم پیاز رخ داده‌است. تغییرات درصد مواد جامد انحلال‌پذیر، سفتی بافت و مادۀ خشک پیاز طی انبارداری به‌صورت غیرخطی بود. مواد جامد انحلال‌پذیر رقم پریماورا بعد از 15 روز افزایش و سپس کاهش داشت. بعد از دو ماه انبارداری، رقم تگزاس نسبت به پریماورا به علت بالاتر بودن مادۀ جامد انحلال‌پذیر و درصد مادۀ خشک، ماندگاری بیشتری داشت. در دمای محیط، بعد از سه ماه، کاهش وزن هر دو رقم بیش از 1.5 برابر ماکزیمم اولیه (11.51 درصد) به دست آمد و در انبارهای سرد، بعد از سه ماه، کاهش وزن هر دو رقم کمتر از 2 درصد بود. هر دو رقم پیاز بعد از 45 روز انبارداری در انبار سنتی، پوسیدگی نداشتند و کاهش وزن آنها کمتر از 3 درصد بود.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The effect of storage type on the storage life and quality of two onion cultivars in southern regions of Iran

چکیده [English]

This study was conducted to increase onion storage life in Hormozgan province. For curing onions, the Primavera and Texas Early Grano cultivar were placed in sunshine for two days. The bulbs were packed in a plastic net for three months in three traditional storages: optimized storage with a temperature of 33 ± 2°C and a relative humidity of 49 ± 4%, controlled storage with a temperature of 9 ± 1°C and a relative humidity of 65± 5%, and storage at a temperature of 5 ± 1°C and relative humidity of 70 ± 5%. Every 15 days, qualitative characteristics of the onions were measured, including: weight loss, germination percentage, total soluble solids, dry matter, and firmness. The results showed that during storage, significant changes were observed in qualitative traits of both onion cultivars. The percentage of soluble solids, firmness and dry matter of onions during storage were nonlinear. Total soluble solids of Primavera cultivar increased after 15 days and then decreased. After two months of storage, Texas Early Grano, comparing Primavera, showed higher storage life due to its higher solid soluble matter and higher dry matter content. At ambient temperature, after three months, the weight losses of both onion cultivars were one and a half times higher than that the initial maximum (11.51%), and in cold storages, after three months, the weight losses of both varieties were less than 2%. Both cultivars faced no decay after 45 days of storage in traditional aeration, with a weight loss of less than 3%.

کلیدواژه‌ها [English]

  • Minab
  • Onion
  • Quality Characteristics
  • Storage
Aberoumand, A. 2005. Application of cold storage and storing in food preservation. Agricultural Science Publishing. Darya printing. (in Persian)
Adamicki, F. 2015. Onion. Department of Vegetable Storage, Research Institute of Vegetable Crops. Skiemiewice, Poland. Available in: www. Coursehero.com/file/8140833/099/onion.
Anbukkarasi1, V., Paramaguru1,p. Pugalendhi1, L. Ragupathi, N. and Jeyakumar, P. 2012. Effect of Curing Methods on Quality and Storage of onion (Allium cepa L. var. Aggregatum Don.). Madras Agricultural Journal. 99 (7-9): 556-559.
Brice, J. R., Bisbrown, A. J. K. and Curd, L. 1995. Onion storage trials as high ambient temperature in the republic of Yemen, Journal of Agriculture Engineering Research. 62(3):185-192.
Darabi, A. 2011. Comparison of quantitative and qualitative characteristics and storing ability of the improved Behbahan onion with mass origin and Primavera cultivar. 7th Iranian Horticultural Science Congress, Isfahan Industrial University, pp. 1111-1113. (in Persian)
Ebadipour, E. and Dejam, M. 2011. Most suitable cultivars onion bulb yield and characters in Khuzestan province. Proceeding of 7th Iranian Horticultural Science Congress, Isfahan University of Technology. 5-8 September. (in Persian)
Emmett, B. 1942. The effect of storage on the carbohydrate of Ebenzer onion. American Society for Horticultural sciences. 36: 293-294.
Faraji Harmi, R. 1987. Science and Technology, Fruits and Vegetables. Tehran University Press. First Edition.
Hosseni, Z., 1985. Common practices in food analysis. Shiraz University Press. First edition.
Khodadadi, M. Zolfaghariyeh, H. M. Niamanesh, H. 2007.The effects of Gamma radiation doses at different times after harvesting on onion (Allium cepa L.) cultivars storability. Seed and Plant Improvement Institute. (in Persian).
Khodadadi, M. Madani, S. 2011.The effects of curing methods on characteristics of storage of onion Iranian cultivars. Proceeding of 7th Iranian Horticultural Science Congress, Isfahan University of Technology .5-8 September. (in Persian)
Kopec, k. and Curda, K. 1989. Relationship between air moisture, skin quality and evaporation in stored onions (Allium cepa L.). Sobornik- UVTIz, Czahradinctvi. 16(4):259-264.
Kopsell,D. E., and Randle, W. M. 1997. Onion cultivars differ in pungency and bulb quality changes during storage. Horticultural Science. 32(7): 1260-1263.
Maleki, M. Dokhani.1990. Food industry - Food preserves using heat, drying and freezing. First volume . Shiraz University. Publication Center. (In Persian)
Marisa, M. W. and Corgan, J. N.1994. Postharvest losses from delayed harvest and during common storage of short day onions. Horticultural Science. 29(7):802-804.
Murthy, K. C. K., Vishwamath, A. P., Babu, C. K. and Ramakumar, M. V. 1988. Onion storage in ’Nasik’ type structure. Current Research, University of Agricultural Science, Bangalore. 17(11): 149-151.
Musa, S. K., Abdalla, Y. M., Haimoura,E. and Sulieman, Y. 1994. Improvement of onion storage in the Sudan. Tropical Science, 34(2): 185-190.
Rodrigues, A. S., Fogliano, V., Graziani, G., Mendes, S., Vale, A. P. and Goncalves, C. 2003. Nutritional value of onion regional varieties in northwest Portugal. Electronic Journal of Environmental Agricultural Food Chemistry. 2(4):519-524.
Rostamfrodi, b. 2006. Study of quantitative and qualitative traits of onion cultivars and determining the relationship between some traits with storage capacity. Plant and Seed. 22(1): 86-67. (in Persian)
Sargent, S.A., P.J. Stoffella D.N Maynard. 2001. Harvest date affects yield and postharvest quality of non-dried, short-day onions. Hort. Sci. 36(1): 112-115.
Shavakhi, F., Madani, S., Niamanesh, H., Khodadadi, M. and Sahaii, Z. 2008. Effect of storage conditions on quantitative and qualitative traits of Iranian onions cultivars. Final report. Institute Agricultural Engineering and Technology. 249/8058. (in Persian)
Takahama, u. and Hirota, S. 2000. Deglucosidation of quercetin glucosides to the aglycone and formation of antifungal agents by peroxidase dependent oxidation of quercetion on browning of onion scales. Plant and Cell Physiology. 41(9):1021-1029.