Growth Characteristics and Yield Comparisons of Domestic and Foreign Italian ryegrass (Lolium multiflorum Lam) Varieties in Yecheon area of Korea
2015
Kim, K.Y., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Lee, S.H., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Ji, H.C., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Hwang, T.Y., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Lee, K.W., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Park, S.M., National Institute of Animal Science, RDA, Cheonan, Republic of Korea
This experiment was conducted to evaluate the agronomic characteristics and forage productivity of Italian ryegrass cultivars in Yecheon, Kyeongbuk from 2011 to 2013. The experimental design was a randomized complete block design (RCBD) with three replications. Italian ryegrass cultivars were seeded on Sep. 26 in 2011 and Sep. 25 in 2012. The Italian ryegrass cultivars were harvested on the heading date of the variety. The cold-resistance of domestic cultivars was stronger than other foreign varieties. Among early-maturing cultivars, the dry matter (DM) yield of the Kowinearly was 10,031 kg/ha, which was significantly higher than that of other cultivars (p0.05). In medium-maturing cultivars, the DM yield of the Kowinmaster and Tam 90 were 10,484 and 8,191 kg/ha, respectively. Of the two, the former's DM yield was higher than the latter's (p0.05). Among late-maturing cultivars, the DM yield of Hwasan 104 was 10,641 kg/ha, which was similar to that of Hwasan 101 and significantly higher than the other late-maturing cultivars (p0.05). According to the results obtained from this study, an early-maturing variety with cold-tolerance and high productivity is required for the paddy field cultivation of an Italian ryegrass cultivar after rice harvest in the mid-northern region of Korea. A medium- or late-maturing variety is more advantageous for the field cultivation of the maximum quantity that is possible. In conclusion, to select which variety/ies to grow, the climate of the growing area, weather conditions, and the cropping system must all be considered.
显示更多 [+] 显示较少 [-]