A Very Early-Maturing Italian Ryegrass (Lolium multiflorum Lam.) New Variety, 'Green Farm' for Double Cropping System
2011
Ji, H.C., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Lee, S.H., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Yoon, S.H., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Kim, K.Y., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Choi, G.J., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Park, H.S., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Park, N.G., Subtropical Animal Experiment Station, NIAS, RDA, Jeju, Republic of Korea | Lim, Y.C., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Lee, E.S., National Institute of Animal Science, RDA, Cheonan, Republic of Korea
This experiment was carried out to breed a very early maturing variety of Italian ryegrass (Lolium multiflorum Lam.) in Grassland and Forage Crops Division, National Institute of Animal Science, RDA, Cheonan from 2009 to 2010. A new variety, 'Green farm' is a diploid variety with green in leaf color and has erect and semi-erect growth habit in late autumn and early spring, respectively. 'Green farm' was on 28 April in heading date as a early-maturing variety. 'Green farm' was also wider by 0.4 mm in flag leaf width, longer by 0.8 cm in flag leaf length and shorter by 5 cm in plant height than those of control variety, 'Florida 80', respectively. 'Green farm' was thicker in stem thickness and stronger in winter hardness than those of the 'Florida 80'. Dry matter (DM) yield (11,790 kg/ha) of 'Green farm' was similar to that of 'Florida 80'. In vitro dry matter digestibility (IVDMD), total digestible nutrient (TDN) and crude protein (CP) of 'Green farm' were 68.7, 63.3 and 10.3% which are 1.9, 1.7 and 0.6% higher than those of 'Florida 80', respectively. Acid detergent fiber (ADF) and neutral detergent fiber (NDF) of 'Green farm' were 32.5 and 54.6% which are 2.2 and 4.3% lower than those of the 'Florida 80', respectively.
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