백립계 다수성 붉은곰팡이병 중도저항성 제면용 밀 신품종 “적중밀”

• Published in: Korean journal of breeding Vol. 40; no. 3; pp. 308 - 313
• Main Authors: 박철수(Chlul Soo Park), 허화영(Hwa-Young Heo), 강문석(Moon-Suk Kang), 이춘기(Chun-Kee Lee), 박광근(Kwang-Geun Park), 박종철(Jong-Chul Park), 김홍식(Hong-Sik Kim), 김학신(Hag-Sin Kim), 황종진(Jong-Jin Hwang), 정영근(Young-Keun Cheong), 김정곤(Jung-Gon Kim)
• Format: Journal Article
• Language: Korean
• Published: 한국육종학회 30.09.2008; The Korean Breeding Society
• Subjects: 농학; High Yield; Noodle Quality; Wheat; Scab; Jeokjoong
• ISSN: 0250-3360; 2287-5174

“Dami”is a new japonica rice variety developed and registered by the rice breeding “Jeokjoong”, a white winter wheat (Triticum aestivum L.) variety was developed from the cross “Keumkang”/ “Tapdong”. “Jeokjoong” is an awned, semi-dwarf and soft white winter wheat, similar to “Keumkang” (check variety). The heading and maturing date of “Jeokjoong” were similar to “Keumkang”. Culm and spike length of “Jeokjoong” were 78 cm and 7.5 cm, similar to “Keumkang”. “Jeokjoong” had lower test weight (800 g) and lower 1,000-grain weight (40.1 g) than “Keumkang” (811 g and 44.0 g, respectively). It had resistance to winter hardiness, wet-soil tolerance and lodging tolerance. “Jeokjoong” showed moderate to scab in test of specific character although “Keumkang” is susceptible to scab. “Jeokjoong” had lower flour yield (69.2%) and ash content (0.36%) than “Keumkang” (72.0% and 0.41%, respectively) and similar flour color to “Keumkang”. It showed lower protein content (8.9%) and SDS-sedimentation volume (36.8 ml) and shorter mixograph mixing time (3.5 min) than “Keumkang” (11.0%, 59.7 ml and 4.5 min, respectively). Amylose content and pasting properties of “Jeokjoong” were similar to “Keumkang”. “Jeokjoong” had softer and more elastic texture of cooked noodles than “Keumkang”. Average yield of “Jeokjoong” in the regional adaptation yield trial was 6.19 MT ha-1 in upland and 5.33 MT/ha in paddy field, which was 19% and 16% higher than those of “Keumkang” (5.21 MT/ha and 4.58 MT/ha, respectively). “Jeokjoong” would be suitable for the area above the daily minimum temperature of -10℃ in January in Korean peninsula.team of Honam Agricultural Research Institute, NICS, RDA in 2006. This variety was derived from a cross between Iksan438 with lodging tolerance and high yield potential, and Iksan426 This variety has about 122 days of growth duration from transplanting to harvesting in Honam and Youngnam plain of Korea. It is about 83 cm in culm length and tolerance to lodging. In reaction to biotic stresses, it shows moderately resistance to blast, and resistance to bacterial blight pathogen races from K1 to K3, but susceptible to other major diseases and insect pests. The milled rice of “ami”has high Quality, midium short grain. The milled rice yield of this variety is about 5.92 MT/ha in local adaptability test for three years. “ami”would be adaptable to Middle plain, Honam plain and Youngnam plain area of Korea.