Comparison of Growth Characteristics, Productivity and Feed Values between Varieties of Sudangrass and Sorghum-Sudangrass Hybrids
2017
Choi, G.J., National Institute of Animal Science, RDA, Jeonju, Republic of Korea | Lee, S.H., National Institute of Animal Science, RDA, Jeonju, Republic of Korea | Lee, K.W., National Institute of Animal Science, RDA, Jeonju, Republic of Korea | Ji, H.C., National Institute of Animal Science, RDA, Jeonju, Republic of Korea | Hwang, T.Y., National Institute of Animal Science, RDA, Jeonju, Republic of Korea | Kim, K.Y., National Institute of Animal Science, RDA, Jeonju, Republic of Korea
This experiment was carried out to compare the growth characteristics and productivity between sudangrass and sorghum-sudangrass hybrid under the same cultivation condition in Cheonan and Kimje of Korea from 2010 to 2011. Sudangrass hybrids(Choice, Sunstar and Piper) and sorghum-sudangrass hybrids(SX-17, Jumbo and Revolution) were planted 5th May in Cheonan and 7th May in Kimje. Heading date of sudangrass hybrids was 12th July which was about 2 week fast more than that of sorghum-sudangrass hybrids. Stem diameter of sudangrass hybrids was about 6mm which was about 5 mm smaller than that of sorghum-sudangrass hybrids. Disease resistance of sudangrass hybrid, Choice was similar to that of sorghum-sudangrass hybrids. Dry matter yield of Choice was 15ton/ha which was 10% less than that for sorghum-sudangrass hybrids(SX-17). Feed value of Choice was similar or slightly lower than that of sorghum-sudangrass. For increasing the productivity in forage cropping systems all around year, sudangrass hybrid is recommended for prolong by the middle ten day of May in the harvesting time of italian ryegrass.
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