“Hojoong”, a winter wheat (Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA, Iksan, Korea, during the period from 2006 to 2012. The heading and maturing dates of this variety were May 2 and June 10 in upland, and May 3 and June 7 in paddy field, respectively. It is an It is an awned, semi-dwarf and soft red winter wheat. Culm and spike length of “Hojoong” were 79cm and 9.1cm. It had lower test weight (803 g/ℓ) and 1,000 grain weight (39.5g) than “Keumkang”. It showed resistance to pre-harvest sprouting, which lower rate of pre-harvest sprouting (5.5%) than “Keumkang”. “Hojoong” had lower flour yield (66.7%) and ash content (0.38%) than “Keumkang”. It showed lower protein content (11.3%) and lower SDS-sedimentation volume (34.0㎖) and amylose content (20.5%) than “Keumkang”. It showed higher high viscosity (204BU) and lightness of noodle dough sheet (80.63). It showed different composition in HMW-GS compositios (2.2+12), PPO18 (876bp), GBSS B (null type) and Puroindolines composition compared th “Keumkang”. Average yield of “Hojoong” in the regional adaptation yield trial test was 5.51 ton/ha in upland and 5.10 ton/ha in paddy field. “Hojoong” would be suitable for the area above –10℃ of daily minimun temperature in January in Korean peninsula
“Baechal”, a winter wheat (Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA, Iksan, Korea, during the period from 2006 to 2012. The heading and maturing dates of this variety were May 1 and June 5 in upland, and May 2 and June 8 in paddy field, respectively. It is an It is an awned, semi-dwarf and hard white wheat. Culm and spike length of “Baekchal” were 75cm and 8.7cm. It had lower test weight (794g/ℓ) and 1,000 grain weight (35.7g) than “Keumkang”. It showed moderate to pre-harvest sprouting, which lower rate of pre-harvest sprouting (13.7%) than “Keumkang”. “Baekchal” had similar ash content (0.47%) and protein content (13.1%) to “Keumkang”. It showed lower gluten content (9.6%), SDS-sedimentation volume (38.2㎖) and amylose content (6.5%) than “Keumkang”. It showed higher high viscosity (643BU), water absorption (213%), expansibility of cooking (357%). It showed different composition in HMW-GS compositios (2*), PPO18 (876bp), GBSS (waxy type) and Puroindolines composition compared th “Keumkang”. Average yield of “Baekchal” in the regional adaptation yield trial test was 4.89 ton/ha in upland and 4.83 ton/ha in paddy field. “Baekchal” would be suitable for the area above –10℃ of daily minimun temperature in January in Korean peninsula