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http://dx.doi.org/10.5333/KGFS.2011.31.4.371

Effect of the Climatic Condition on the Growth Characteristic of Domestic Corn Hybrids in Alpine Region  

Kim, Meing-Jooung (National Institute of Animal Science)
Lee, Seung-Ho (Climate research Institute, Konkuk University)
Chang, Sun-Sik (National Institute of Animal Science)
Kim, Tae-Il (National Institute of Animal Science)
Choi, Sun-Ho (National Institute of Animal Science)
Cho, Won-Mo (National Institute of Animal Science)
Hong, Seong-Gu (National Institute of Animal Science)
Lee, Sang-Rak (Eco-friendly Agricultural Products Certification Center, Konkuk University)
Kim, Myeong-Hwa (Eco-friendly Agricultural Products Certification Center, Konkuk University)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.31, no.4, 2011 , pp. 371-382 More about this Journal
Abstract
The aim of the present study was to investigate the relationship between climates, growth characteristic and yield of silage corn at Hanwoo Experiment Station, National Institute of Animal Science, Daegwallyeong in Gangwon Province located at altitude of 760 m, from 2009 to 2010. The mean minimum temperature was $12.29^{\circ}C$ from seeding to harvest in 2009, $14.30^{\circ}C$ in 2010, the mean maximum temperature was $21.66^{\circ}C$, $23.48^{\circ}C$, respectively. The mean temperature was $16.85^{\circ}C$ in 2009 and $18.55^{\circ}C$ in 2010, respectively. Duration of sunshine was 711.3 hours in 2009 and 663.8 hours in 2010, and precipitation was 893.8 mm in 2009 and 752.1 mm in 2010, respectively. In 2009, for all Kwangpyeongok, Gangdaok, Cheonganok, Cheongsaok, Pyeonganok, the early growth was good with 1.2, while in 2010 the growth for Pyeonganok was good with 1.3 comparing to others, which showed worse growth than in the previous year with 2.4~3.0. There was significant difference in the ear height between 2009 and 2010, showing mean value of 85.8 cm and 105 cm for all the species in 2009 and in 2010, respectively (p<0.001). In 2010, stem diameter for all the species were larger, and there was significant difference in mean value of the diameter between 2009 and 2010 (p<0.001). There was significant difference in the plant height and ear height between 2009 and 2010, showing 200 cm and 258 cm in 2009 and 2010, respectively (p<0.001). There was significant difference in the average days to silk, showing 103.8 days in 2009, 90 days in 2010, respectively (p<0.001). There was no lodging or disease-insect damage in all hybrid silage corn in both 2009 and 2010. The mean ear rates were 23.4% in 2009, but almost doubled, 52.1%, in 2010. There was significant difference in fresh yield between the two years, showing 54,611 kg/ha in 2009 and 78,733 kg/ha in 2010, respectively (p<0.001). Dry matter yields were higher in 2010 than in 2009. TDN yields of Gangdaok and Cheonganok were higher in 2009, whereas that of Cheongsaok and Pyeonganok were higher in 2010. Crude protein contents were higher in 2010 than in 2009 for all the species.
Keywords
Corn Hybrids; Domestic variety; Dry matter; Climatic change; Alpine region;
Citations & Related Records
Times Cited By KSCI : 9  (Citation Analysis)
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