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http://dx.doi.org/10.5333/KGFS.2003.23.4.265

Effect of Seeding Dates on Ecological Response, Yield Potential and Feed Value in Jeju Italian Millet  

Cho, Nam-Ki (The Research Institute for Subtropical Agriculture and Biotechnology Cheju national University)
Ko, Dong-Hwan (The Research Institute for Subtropical Agriculture and Biotechnology Cheju national University)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.23, no.4, 2003 , pp. 265-270 More about this Journal
Abstract
This study was conducted to determine the influence of seeding date on growth, characteristic yield and chemical composition of Italian millet (Setaria italica) from April 20 to May 30, 2003(April 20, May 1, May 20 and May 30) in Jeju. A local variety was seeded on days to heading were lessened as seeding date was delayed. The plant height was longest when seeded on 1 May(131cm) than at the other seeding dates. Stem diameter, number of leaves, leaf length and leaf width had the similar trend with plant height. SPDA reading values were greater at earlier seedings. Fresh forage yield was greatest (43.28MT/ha) at 1 May seeding and decreased gradually before or after this seeding date. Dry matter yield, crude protein yield and total digestible nutrient (TDN) yield had nearly the same tendency with fresh forage yield. Crude protein, crude fat, NFE and TDN contents were greatest at 30 May seeding and then decreased earlier seedings. Crude ash and crude fiber content tended to decreased as seeding was delayed. Based on the these findings, optimum seeding date for forage production of Italian millet seems to be early May in Jeju island.
Keywords
Italian millet; Seeding date; Ecological; Feed value;
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