Effect of Heading and BMR types on the Agronomic Characteristics, Forage Yield and Quality of Sorghum × Sudangrass Hybrid

출수형태와 BMR이 수수×수단그라스 교잡종의 생육특성, 생산성 및 품질에 미치는 영향

  • Kim, Jong-Duk (Division of Animal Husbandry, Cheonan Yonam College) ;
  • Ko, Ki-Hwan (Dept. of Golf Course and Horticulture, Keimyung College) ;
  • Kwon, Chan-Ho (Dept. of Animal Science, Kyungpook National University)
  • 김종덕 (천안연암대학 축산계열) ;
  • 고기환 (계명문화대학 골프코스 원예학부) ;
  • 권찬호 (경북대학교 축산BT학부)
  • Received : 2012.08.28
  • Accepted : 2012.09.20
  • Published : 2012.09.30


This experiment was carried out to compare the agronomic characteristics, forage yield and quality of sorghum ${\times}$ sudangrass hybrid at two locations (Sungju and Cheonan) in 2009. The experiment was a randomized complete block design with three replications. The eight recommended hybrids used in this experiment were 'Sordan 79', 'SX17', 'Honey chew', 'Honey grazer', 'G7', 'Jumbo', 'Green star' and 'GT56' hybrids. The heading of four hybrids were headed at both region, Sungju and Cheonan. There are no big differences in general agronomic characteristics among hybrids, but brix scale of heading and BMR (brown mid rib) types were higher than those of other hybrids. Dry matter (DM) and plant height of heading type hybrids were higher than those of headless types. The fresh, DM and TDN (total digestible nutrients) yields of heading type hybrids were also higher than those of headless types, and BMR types were lower than others. The crude protein and crude ash contents of headless hybrids were higher than those of heading hybrids, while its non-fiber carbohydrate (NFC) content showed the opposite results. The acid detergent fiber (ADF) and NFC contents of BMR types were lower than others. The results of this experiment indicates that heading hybrids were more higher than headless hybrids in the agronomics and forage yield of sorghum ${\times}$ sudangrass. However heading types were lower headless types in quality of sorghum ${\times}$ sudangrass. And BMR hybrids were also high quality of sorghum ${\times}$ sudangrass hybrid because of higher brix content and lower ADF content among tested hybrids.



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