EFFECT OF HARVESTING TIME ON MILLING YIELD AND GRAIN BREAKAGE FOR EGYPTIAN PADDY RICE

Yehia, M. E.; Khatab, Ahmed R.

doi:10.21608/mjae.2017.96088

EFFECT OF HARVESTING TIME ON MILLING YIELD AND GRAIN BREAKAGE FOR EGYPTIAN PADDY RICE

Document Type : Original Article

Authors

Researcher, Rice Technology Training Center Alex., Ag. Res. Center, Egypt.

10.21608/mjae.2017.96088

Abstract

The effect of harvesting time on rice sensory and physio-chemical properties not well understood. Timing of harvesting rice with meteorological conditions can allow growers to gain more for high head rice yield. Three of Egyptian varieties Sakha 106, Giza 179 and Hybrid1 were grown during 2015 to estimate the total milling yield and grain breakage at five different harvest times {22, 25, 28, 31 and 34 days after 50% of flowering (DAF)}.It was concluded that the highest total milling yield and lowest grain breakage was obtained at the 28, 25 and 31 day after 50% of the flowering for Sakha 106, Giza 179 and Hybrid1 respectively. So harvest management preserves rice quality that contribute directly to profit, and then rice growers must harvest rice as carefully as they grow it. Although this study showed that harvesting time is very important, there are many factors have effect on milling quality. Among of these that were investigated is the harvesting time.

Main Subjects

Processing Engineering of Agricultural Products

References

Afzalinia S, Shaker M, and Zare E. 2004.Comparison of different rice milling methods.Canadian Biosystems Engineering 46(3), 63-66.

Akowuah, J. O., Addo, A., and Bart-Plange, A. 2012. Influence of drying temperature and storage duration on fissuring and milling quality of Jasmine 85 rice variety. Journal of Science and Technology, 32(2): 26-33.

Bautista, R.C., and Siebenmorgen,T.J. 2008. Estimating Rice Optimal Harvest Moisture Content Using Individual Kernel Moisture Content Distributions at Harvest.

Bautista, R.C., T.J. Siebenmorgen and A. Mauromoustakos 2009.The role of rice individual kernel moisture content distributions at harvest on milling quality. Trans. of the ASABE 52 (5): 1611-1620.

Hossain MF, Bhuiya MSU, Ahmed M, and Mian MH. 2009. Effect of harvesting time on the milling and physicochemical properties of aromatic rice. Thailand Journal of Agricultural Science 42(2), 91-96.

http://www.fao.org/economic/est/publications/rice-publications/rice- market-monitor-rmm/en/

IlievaVerica, AndreevskaDanica, AndovD.,MarkovaNatalija, and JankulovskaMirjana 2009.Dressing percentage of white rice in correlation with the harvest time of the rice. Yearbook of the Faculty of Agricultural Sciences and Food, Skopje. Vol. 54, p. 19-27.

IRRI - available at http://www.knowledgebank.irri.org

Lantin R. 1999. RICE: Post-harvest Operations. International Rice Research Institute, Philippines (IRRI), 62 p.

Malik A, Majid A, and Ahmad S. 1981.Effect of harvesting time and drying method on paddy yield and milling quality in different varieties. Pakistan Journal of Agricultural Research 2(1), 7-12.

Ntanos D, Philippou N, and Hadjisavva-Zinoviadi S. 1996.Effect of rice harvest time on milling yield and grain breakage. Cahiers Options Méditerranéennes 15(1), 23-28.

Siebenmorgen, T.J., R.C. Bautista, and P.A. Counce. 2007. Optimal harvest moisture contents for maximizing rice milling quality. Appl. Eng. Agric. 23(4):517-527.

SürekH, and Beşer N.1998. A research to determine the suitable rice (oryza sativa L.) harvesting time. TÜBITAK, Turkish Journal of Agriculture and Forestry 22, 391-394.

USDA-FGIS. 1994. Rice inspection handbook. Washington D.C.:USDA Agricultural Marketing Service.