'Joseong', a New Early-Heading Forage Triticale Cultivar for Paddy Field of Double Cropping
2012
Han, O.K., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Park, T.I., National Institute of Crop Science, RDA, Iksan, Republic of Korea | Park, H.H., National Institute of Crop Science, RDA, Iksan, Republic of Korea | Song, T.H., National Institute of Crop Science, RDA, Iksan, Republic of Korea | Ju, J.I., Chungcheongnam-do Agricultural Research and Extension Services, Yesan, Republic of Korea | Jeung, J.H., Chungcheongbuk-do Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Kang, S.J., Jeollanam-do Agricultural Research and Extension Service, Naju, Republic of Korea | Kim, D.H., Gyeongsangnam-do Agricultural Research and Extension Services, Jinju, Republic of Korea | Choi, H.J., Gyeongsangbuk-do Agricultural Research and Extension Service, Daegu, Republic of Korea | Park, N.G., Subtropical Animal Experiment Station, NIAS, RDA, Jeju, Republic of Korea | Kim, K.J., National Institute of Crop Science, RDA, Iksan, Republic of Korea | Hwang, J.J., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Baek, S.B., National Institute of Crop Science, RDA, Suwon, Republic of Korea | Kwon, Y.U., National Institute of Crop Science, RDA, Suwon, Republic of Korea
'Joseong', a winter forage triticale cultivar (X Triticosecale Wittmack), was developed by the breeding team at the Department of Rice and Winter Cereal Crop, NICS, RDA in 2010. The cultivar 'Joseong' was selected from the cross FAHAD_5/RHINO1R.1D 5+10 5D'5B'//FAHAD_5 by CIMMYT (Mexico) in 1992. Subsequent generations were handled in pedigree selection program at Mexico from 1993 to 1998, and a line 'CTSS92Y-A-4Y-0M-5Y-0B' was selected for earliness and good agronomic characteristics. After preliminary and advance yield test in Korea for 2 years, the line designated as a line name of 'Iksan26'. The 'Iksan26' was subsequently evaluated for earliness and forage yield in 7 different locations such as Jeju, Iksan, Cheongwon, Yesan, Naju, Daegu, and Jinju from 2008 to 2010 and finally named as 'Joseong'. The cultivar 'Joseong' has characteristics of dark green leaf, yellow culm and spike, and large grain of yellowish brown color. The heading date of cultivar 'Joseong' was April 24, which was 5 days earlier than that of check cultivar 'Shinyoung'. It showed better tolerance or resistance to lodging, wet injury, powdery mildew, and leaf rust than those of the check cultivar 'Shinyoung'. The average forage dry matter yield of cultivar 'Joseong' at milk-ripe stage was 14.5 MT ha-¹, which was lower than 16.5 MT ha-¹ of the check cultivar 'Shinyoung'. The silage quality of 'Joseong' (5.3%) was lower to the check cultivar 'Shinyoung' (6.0%) in crude protein content, while was 2.1% superior to the check cultivar 'Shinyoung' (61.9%) in TDN (total digestible nutrients). It showed 5.1 MT ha-¹ of grain yield, which was 40% higher than that of the check cultivar 'Shinyoung' (3.65 MT ha-¹). This cultivar is recommended for fall sowing crop in the area where daily minimum mean temperatures are averaged higher than -10℃ in January, and as a winter crop using whole crop forage before planting rice in around Korea.
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