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http://dx.doi.org/10.5333/KGFS.2008.28.1.001

Growth Characteristics and Productivity of New Orchardgrass(Dactylis glomerata L.) Variety "Korditwo"  

Ji, Hee-Chung (National Institute of Animal Science)
Choi, Gi-Jun (National Institute of Animal Science)
Sung, Byung-Ryul (National Institute of Animal Science)
Seo, Sung (National Institute of Animal Science)
Kim, Ki-Young (National Institute of Animal Science)
Lee, Joung-Kyong (National Institute of Animal Science)
Kim, Won-Ho (National Institute of Animal Science)
Park, Hyung-Soo (National Institute of Subtropical Agriculture, R.D.A)
Moon, Chung-Sup (Jeollabuk-Do Agricultural Research & Extension Services)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.28, no.1, 2008 , pp. 1-6 More about this Journal
Abstract
Korditwo is a new orchardgrass(Dactylis glomerata L.) variety developed by the National Institute of Animal Science(NIAS) in 2005. To develope the new variety of orchardgrass, 5 superior clones, Dg8533, Dg9518, EDg9133, U8504 and U8519, were selected and polycrossed for seed production. That synthetic variety was designated newly as "Korditwo", and it's agronomic growth characteristics and forage productivity were examined at Suwon from 2001 to 2002, and regional yield trials were conducted in Suwon, Pyungchang, Youngju, Iksan, and Jeju from 2003 to 2005, respectively. "Korditwo" showed medium type growth habit in fall and spring and short in length of flag leaf and upper internode. Plant height of "Korditwo" was similar to that of standard variety, "Ambassador" and heading date was 4 days later than 14th May compared to Ambassador. Characteristics such as winter hardiness, lodging tolerance, disease resistance of "Korditwo" were stronger or better than those of Ambassador, specially in winter hardiness and lodging tolerance. "Korditwo" showed 10% higher dry matter yield(11.3 ton/ha) compared to Amabassador. Nutritive value was appeared to be similar in both varieties.
Keywords
Orchardgrass; Korditwo; Synthetics; Polycross; Forage crop; Variety;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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