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http://dx.doi.org/10.5333/KGFS.2005.25.4.275

Growth Characters and Productivity of Italian Ryegrass (Lolium multiflorum L.) New Variety 'Hwasan 104'  

Choi Gi Jun (National Livestock Research Institute RDA)
Rim Yong Woo (National Livestock Research Institute RDA)
Sung Byung Ryul (National Livestock Research Institute RDA)
Lim Young Chul (National Livestock Research Institute RDA)
Kim Meing Jooung (National Livestock Research Institute RDA)
Kim Ki-Yong (National Livestock Research Institute RDA)
Park Geun Je (National Livestock Research Institute RDA)
Park Nam Keon (Research Development bureau, RDA)
Hong Youn Ki (Jeollabuk-Do Agricultural Research & Extension Services)
Kim Sang Rok (Uijeongbucity Agriculture Development & Technology Center)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.25, no.4, 2005 , pp. 275-280 More about this Journal
Abstract
This experiment was carried out to breed the cold-tolerant variety of Italian ryegrass (Lolium multiflorum Lam.) in Grassland and Forage Crops Division, National Livestock Research Institute, RDA, Suwon from 1997 to 2002. Hwasan 104 as a tetraploid variety was dark green in leaf color and had semi-prostrate and medium growth habit in late autumn and early spring, respectively. Hwasan 104 was 19th May in heading date as a late-heading variety. Especially, Hwasan 104 was broader in flag leaf and longer 7 cm in plant length, and thicker in stem width than those of control variety, Hwasan 101. Cold tolerance of Hwasan 104 was better than that of Hwasan 101 registered as a cold-tolerant variety. Dry matter (DM) yield of Hwasan 104 was $5\%$ more than DM 9,348 kg/ha of Hwasan 101. In vitro dry matter digestibility and total digestible nutrient of Hwasan 104 were 74.3 and $63.1\%$ which are 3.3 and $1.5\%$ lower than those of Hwasan 101, respectively. Acid detergent fiber and neutral detergent fiber of Hwasan 104 were 32.6 and $55.8\%$ which are 1.9 and $2.4\%$ higher than those of Hwasan 101, respectively.
Keywords
Italian ryegrass; Cold tolerance; New variety 'Hwasan 104';
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