Document Type : Research Paper
Authors
- Maryam Ravaghi 1
- Leila Behbahani 2
- Ali Mokhtaran 3
- Kobra Tajaddodi Talab 4
- Alireza Ghodsvali 5
- asefeh latifi 6
1 Assistant Professor, Agricultural Engineering Research Department, Khuzestan Agricultural and Natural Resources Research and Education center, Agricultural Research, Education and Extension Organization (AREEO), Ahvaz, Iran.
2 Non-Member Faculty, Agricultural Engineering Research Department, Khuzestan Agricultural and Natural Resources Research and Education center, Agricultural Research, Education and Extension Organization (AREEO), Ahvaz, Iran
3 Assistant Professor, Agricultural Engineering Research Department, Khuzestan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Ahwaz, Iran
4 4Assistant Professor, Rice Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Rasht, Iran
5 Associate professor, Agricultural Engineering Research Department, Golestan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Gorgan, Iran
6 Assistant Professor, Rice Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Amol, Iran
Abstract
Rice is one of the most important summer crops in Khuzestan province where its cultivation has been limited due to water scarcity in recent years. Water is the most important factor for sustainable production of many agricultural products and changes in soil moisture content during rice growth can affect yield, quality, physicochemical and mechanical properties of its kernel. Considering the severe water resource limitation, this research was conducted on the reaction of the common rice cultivar of this province (Anbarbo) after dry bed seeding and drip strips irrigation method with three different irrigation intervals (every 1, 2 and 3 day/days). Samples were gathered and tested for their geometric properties, gravimetric properties, coefficient of static friction, bending strength, milling yield, chalkiness, gelatinization temperature, whiteness, Amylose and protein. The Results showed that increasing the irrigation period from 1 day to three days could affect negatively on the length, bending strength and one thousand weight of rice. Friction milling system produced significantly higher head rice yield (62.87±2.2%) than abrasive milling system (55.22±6.53%) for anbarbo rice. As the cultivated rice had acceptable properties in all treatments, its production can be explainable due to water scarcity.
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