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http://dx.doi.org/10.5333/KGFS.2011.31.4.361

Effect of Harvest Time on Yield and Feed Value of Whole Crop Barleys with Different Awn Types  

Song, Tae-Hwa (Dept. Rice and Winter Cereal Crop, NICS, RDA)
Han, Ouk-Kyu (Dept. Rice and Winter Cereal Crop, NICS, RDA)
Yun, Seong-Kun (Dept. Rice and Winter Cereal Crop, NICS, RDA)
Park, Tae-Il (Dept. Rice and Winter Cereal Crop, NICS, RDA)
Kim, Kee-Jong (Dept. Rice and Winter Cereal Crop, NICS, RDA)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.31, no.4, 2011 , pp. 361-370 More about this Journal
Abstract
This study was conducted to obtain basic a information on growth characteristics, productivity, and feed values of whole crop barleys with different awn types. The field experiments were conducted on land at Iksan, Jeollabuk-do province in Korea for one year. Six barleys with three different awn types, such as Youngyang (rough), Yuyeon (hood), Youho (hood), Iksan449 (hood), Iksan456 (hood), and Iksan448 (awnless), were used in this study. Barleys were harvested on five growth stages after (DAH); 20 days after heading (20 DAH), 25 DAH, 30 DAH, 35 DAH, and 40 DAH. Heading was earlier in Yuyeon (April 22), while was later in Iksan448 (April 29). The maximum dry matter and total digestible nutrients (TDN) yields, 11.8 and 8.1 ton per ha, respectively, was recorded in Ikan456 harvested at 35~40 DAH, followed by Youngyang, Yuyeon, Iksan448, Youho and the lowest in Iksan449. They were increased significantly with advancing crop maturity. Crude protein content was the highest in Iksan448 (10.9%) and the lowest in Youho (9.7%) and that was decreased significantly with late harvest. Total digestible nutrients (TDN) and relative feed value (RFV) were the highest in Iksan448 (73.0%, 183.8, respectively) and the lowest in Iksan456 (68.0%, 135.4, respectively) and they were increased significantly with late harvest. The mean RFV evaluated by awn types was the highest in Iksan448 (183.8) of awnless, the lowest in Youho (149.5) and Iksan456 (135.4), indicated the insufficiency of hooded type barleys as good fodder use. Therefore, in this study suggest that hooded barley should improve forage productivity as well as quality.
Keywords
Barley; Forage; Awn type; Yield; Feed value;
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Times Cited By KSCI : 11  (Citation Analysis)
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