Comparison of Agronomic Characteristics, Productivity and Feed Values of Summer Sowing Sorghum Hybrids in Gyeongbuk
2015
Shin, C.N., Keimyung College University, Daegu, Republic of Korea | Ko, K.H., Keimyung College University, Daegu, Republic of Korea | Kim, J.D., Cheonan Yonam College, Cheonan, Republic of Korea
This study was conducted to evaluate on agronomic characteristics, dry matter (DM) and digestible dry matter (DDM) yields of summer sowing sorghum hybrids (Sorghum bicolor (L) Moench) at Seongju in Gyeongbuk from 2013 to 2014. The experiment was arranged in randomized complete block design with three replications. Sorghum hybrids were seeded 31st of July, 2013 and 2014. Sorghum hybrids were harvested on 3rd November, 2013 and 5th November, 2014. The observed average heading date was October 5, 8 and 9 for Sordan79, Sprint and SX17 respectively. The DM yield of SX17, Sordan79, and Sprint was 24.2, 23,9 and 23.4 ton/ha, respectively and DM yield of those were significantly higher (p0.05) than other three cultivars in 2013. DM yield of SX17, Sprint and Sordan79 was 20.8, 20.0 and 19.3 ton/ha, respectively and DM yield of those was significantly higher (p0.05) than other three cultivars in 2014. The DDM yield of SX17, Sordan79, and Sprint was also higher (p0.05) than other three cultivars in 2013 and 2014. ADF content of sorghum hybrids was low, whereas DDM was high. The results of this study indicated that traditional sorghum-sudangrass hybrids (SX17, Sordan79) and sudan grass-sudangrass hybrid (Sprint) than late flowering sorghum-sudangrass hybrid (PACF8350) and sorghum-sorghum hybrids (SS405, Sugar grazer) would be recommended for DM and DDM yields in the southern Korea.
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