농업과학연구 (Korean Journal of Agricultural Science)

  • 제50권3호
  • /
  • Pages.365-371
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  • 2023
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  • 2466-2402(pISSN)
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  • 2466-2410(eISSN)
충남대학교 농업과학연구소 (Institute of Agricultural Science, CNU)
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Growth characteristics and productivity of new Italian ryegrass (Lolium multiflorum Lam.) variation, IR 604

  • Hee Chung Ji (Subtropical Livestock Research Institute, National Institute of Animal Science, Rural Development Administration) ;
  • Sang Min Shin (Subtropical Livestock Research Institute, National Institute of Animal Science, Rural Development Administration) ;
  • Ji Hyun Yoo (Subtropical Livestock Research Institute, National Institute of Animal Science, Rural Development Administration)
  • 투고 : 2023.04.10
  • 심사 : 2023.07.10
  • 발행 : 2023.09.01
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초록

This experiment was carried out to breed a medium maturing variety of Italian ryegrass (Lolium multiflorum Lam.) in Grassland and Forage Crops Division, National Institute of Animal Science, Rural Development Administration (RDA), Cheonan from 2019 to 2020. An Italian ryegrass variety, IR 604 is a tetraploid variety with green in leaf color and has half-erect growth habit in late autumn and erect growth habit in early spring, IR 604 was on May 17 in heading date as a medium maturing variety. Also, IR 604 was longer by 11 cm in flag leaf length and longer by 1.3 cm in plant height than those of the control variety, Kowinner, respectively. IR 604 was also thicker by 1.0 mm in stem thickness and strong in winter hardness. Dry matter (DM) yield (11,036 kg/ha) of IR 604 was 16.6% higher than that of Kowinner. Total digestible nutrient (TDN), crude protein (CP) and relative feed value (RFV) of IR 604 were 60.4, 13.8% and 100.6 which are 1.4, 3.3%, 7.7 higher than those of Kowinner, respectively. Acid detergent fiber (ADF) and neutral detergent fiber (NDF) of IR 604 were 35.5 and 56.7% which are 1.3 and 3.6% lower than those of Kowinner, respectively.

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과제정보

This work was carried out with the support of "Cooperative Research Program for Agriculture Science and Technology Development (Project No. PJ01485602)" by Rural Development Administration, Republic of Korea.

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