Hawm Huabawn 35 (Krabi 72), a Non-glutinous Rice Variety

Abstract

Nowadays, consumers are more concerned about food quality and food safety. Traceable system is a useful tool to foll upland rice is one of the major crop productions in the southern parts of Thailand. This production system is usually planted as an intercropping with oil palm or para rubber plants or planted after the termination of oil palm or para rubber plants. An upland rice variety Hawm Huabawn is a local variety from Krabi province with a red pericarp of the brown rice and has a taro smell when cooking. A pure seed of this variety is hard to find as most local varieties have been blended when it is planted in upland conditions. Recently, Krabi Rice Research Center has developed the process to purify this variety by collection, conservation and evaluation of Hawm Huabawn variety followed by the process of varietal improvement. The line number KBIC16003-35 was selected. This line is photosensitive, non-glutinous with an average height of 147 cm. It has excellent milling qualities with 51% of the total head. The average length of brown rice is 7.75 mm with 2.07 mm width, and 1.71 mm thick. It has an outstanding cooking quality, medium amylose content of 21.58% with fragrant taro smell with 2AP concentration of 1.46 ppm. Additionally, this rice contains high levels of antioxidants (581.29 mg eq trolox/100 g). On the occasion of His Majesty the King Rama 10’s 72nd birthday in the year 2024, the Thai Rice Department released this line as an upland rice Hawm Huabawn 35 (Krabi 72) variety. This variety is suitable for intercropping with oil palm or para rubber plants or planted after the termination of these two plants. It has moderate blast disease resistance at seedling, but it is
susceptible to bacterial blight disease and brown planthopper.