분질배유를 지녀 건식제분 쌀가루 제조에 유리한 조생종, ‘바로미2’
Early Maturing Rice Variety “Baromi2” with a Floury Endosperm and Suitable for Dry-Milling of Rice Grain
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초록
“Baromi2” is an improved resistant early maturing rice variety with floury endosperm, and is suitable for dry milling. This varietywas developed in 2019 by crossing “Suweon542,” which is ideal for dry milling, and “Jopyeong” by the rice breeding team at the NationalInstitute of Crop Science, Rural Development Administration. The heading date of “Baromi2” was July 27 in the Honam Plains, 17 d earlierthan that of “Seolgaeng.” The culm length of “Baromi2” was 76 cm, which was almost the same as its check variety “Seolgaeng”; additionally,its panicle length, panicle number, and 1,000 grain-weight of brown rice were 23 cm, 11, and 18.4 g, respectively. “Baromi2” showed strongresistance against rice blast, bacterial blight, and stripe virus disease, but was susceptible to dwarf and brown and small brown planthoppers. The milled rice yield of “Baromi2” was approximately 475 kg/10a in the local adaptability test for 3 years in the late planting culture. Thegrain hardness of “Baromi2” with a floury endosperm was 2 and 3 times lower than that of “Seolgaeng” with opaque endosperm and “Jopyeong”with transparent endosperm, respectively. The rice flour of “Baromi2” exhibited superior physicochemical characteristics with respect to granulesize and damaged starch content compared with any other check varieties. These results inferred that “Baromi2” was suitable for dry millingand for the processed rice industry, owing to its lower milling costs and eco-friendly milling methods (Registration No. 9052).
Abstract
“Baromi2” is an improved resistant early maturing rice variety with floury endosperm, and is suitable for dry milling. This varietywas developed in 2019 by crossing “Suweon542,” which is ideal for dry milling, and “Jopyeong” by the rice breeding team at the NationalInstitute of Crop Science, Rural Development Administration. The heading date of “Baromi2” was July 27 in the Honam Plains, 17 d earlierthan that of “Seolgaeng.” The culm length of “Baromi2” was 76 cm, which was almost the same as its check variety “Seolgaeng”; additionally,its panicle length, panicle number, and 1,000 grain-weight of brown rice were 23 cm, 11, and 18.4 g, respectively. “Baromi2” showed strongresistance against rice blast, bacterial blight, and stripe virus disease, but was susceptible to dwarf and brown and small brown planthoppers. The milled rice yield of “Baromi2” was approximately 475 kg/10a in the local adaptability test for 3 years in the late planting culture. Thegrain hardness of “Baromi2” with a floury endosperm was 2 and 3 times lower than that of “Seolgaeng” with opaque endosperm and “Jopyeong”with transparent endosperm, respectively. The rice flour of “Baromi2” exhibited superior physicochemical characteristics with respect to granulesize and damaged starch content compared with any other check varieties. These results inferred that “Baromi2” was suitable for dry millingand for the processed rice industry, owing to its lower milling costs and eco-friendly milling methods (Registration No. 9052).
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