병에 강하고 수량성이 높은 중만생 흑미 품종 ‘제이제이603블랙’
Mid-Late Maturing High-Yielding Black Rice Cultivar “JJ603Black” with Multiple-Disease Resistance
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“JJ603Balck” is a mid-late maturing high-yielding black rice having multiple-disease resistance. It was developed to increase theyield and disease resistance of Korean black rice. “JJ603Black” was derived from a cross between “Heughyang” and BC2F1 plants(Hopum*3/SR30075-1-12-6-1-1-1). “Heughyang” is a mid-late black rice with a short culm, while “Hopum” is a mid-late maturing rice cultivarwith high yields and premium quality, and “SR30075” is a pyramid line carrying three bacterial blight resistance genes. “JJ603Black” wasselected through the pedigree method, yield trials, and local adaptability tests, with a high selection pressure for black pericarp, resistanceto bacterial blight K3a race, and high yield performance. The heading date of “JJ603Black” was August 19, 8 d later than that of “Heugnam,”which is the standard cultivar for black rice. “JJ603Black” is a cultivar tolerant to lodging with erect plant architecture. It showed multiple-diseaseresistance against bacterial blight and rice stripe virus owing to introgression resistance genes, Xa3+Xa21+Stvb-I; moreover, its yieldingperformance was high. The average brown rice yield of "JJ603Black" from 2016 to 2018 was 6.02 MT/ha, which was 14% more than thatof “Heugnam” (5.30 metric/ha). Further, the anthocyanin content of “JJ603Black” (58 mg/100 g) was higher than that of “Heugnam” (51mg/100 g). Therefore, “JJ603Black,” a high-yielding black rice cultivar with multiple-disease resistance, can be utilized for enhancing thedisease resistance and yield of Korean black rice (Registration No. 7274).
Abstract
“JJ603Balck” is a mid-late maturing high-yielding black rice having multiple-disease resistance. It was developed to increase theyield and disease resistance of Korean black rice. “JJ603Black” was derived from a cross between “Heughyang” and BC2F1 plants(Hopum*3/SR30075-1-12-6-1-1-1). “Heughyang” is a mid-late black rice with a short culm, while “Hopum” is a mid-late maturing rice cultivarwith high yields and premium quality, and “SR30075” is a pyramid line carrying three bacterial blight resistance genes. “JJ603Black” wasselected through the pedigree method, yield trials, and local adaptability tests, with a high selection pressure for black pericarp, resistanceto bacterial blight K3a race, and high yield performance. The heading date of “JJ603Black” was August 19, 8 d later than that of “Heugnam,”which is the standard cultivar for black rice. “JJ603Black” is a cultivar tolerant to lodging with erect plant architecture. It showed multiple-diseaseresistance against bacterial blight and rice stripe virus owing to introgression resistance genes, Xa3+Xa21+Stvb-I; moreover, its yieldingperformance was high. The average brown rice yield of "JJ603Black" from 2016 to 2018 was 6.02 MT/ha, which was 14% more than thatof “Heugnam” (5.30 metric/ha). Further, the anthocyanin content of “JJ603Black” (58 mg/100 g) was higher than that of “Heugnam” (51mg/100 g). Therefore, “JJ603Black,” a high-yielding black rice cultivar with multiple-disease resistance, can be utilized for enhancing thedisease resistance and yield of Korean black rice (Registration No. 7274).
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