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http://dx.doi.org/10.7732/kjpr.2016.29.4.511

Effect of Planting Density and Seeding Date on the Tiller Aspect and Growth Characteristics of Proso Millet (Panicum miliaceum L.)  

Yoon, Seong-Tak (Department of Crop Science and Biotechnology, Dankook University)
Han, Tae-Kyu (Department of Crop Science and Biotechnology, Dankook University)
Jeong, In-Ho (Department of Crop Science and Biotechnology, Dankook University)
Kim, Young-Jung (Department of Crop Science and Biotechnology, Dankook University)
Yu, Je-Bin (Department of Crop Science and Biotechnology, Dankook University)
Yang, jing (Department of Crop Science and Biotechnology, Dankook University)
Ye, Min-Hee (Department of Crop Science and Biotechnology, Dankook University)
Han, Kwang-Seop (Chungcheongnam-do Agricultural Research & Extension Services)
Baek, Seung-Woo (Chungcheongnam-do Agricultural Research & Extension Services)
Kim, Soon-Il (Nareso Research Institute, Nareso Co., Ltd.)
Lee, Myung-Cheol (National Institute of Agricultural Sciences, RDA)
Kim, Kun-Woo (Department of Medicinal Plant Resources, Andong National University)
Publication Information
Korean Journal of Plant Resources / v.29, no.4, 2016 , pp. 511-518 More about this Journal
Abstract
The subject of this experiment is to supply basic data to inhibit non-productive tillers which are uneconomical for mechanical harvesting and to evaluate optimum planting density and sowing date in central district. Total number of tillers and effective first and second of tillers according to different planting density was higher in 80 ㎝ ridge than 60 ㎝ ridge in proso millet. The wider between plant distance on the ridge, the more increased total number of tillers and effective first and second of tillers. The highest effective tillers (91.7 %) in the first tillers was obtained from the second sowing date (23 May) among different sowing date and next is in the order of 3rd(13 June, 89.8%) > 1st(2 May, 85.6%) > 4th(4 July, 85.2%). The percentage of effective tillers in the second tillers was decreased in the order of 2 May (53.7%), 23 May (40.7%), 13 June (22.2%), 4 July (0%) as the sowing date was delayed. There was no significant difference in days to heading and days to ripening according to different planting density. Although culm length was increased as planting density was increased, whereas number of tillers, stem diameter, ear length, grains per ear and 1000 grain weight was decreased. In the growth and yield characteristics of proso millet according to different sowing date, days to heading and days to ripening, culm length, stem diameter, ear length, grains per ear and yield per 10a were decreased. After the sowing date of 13 June, the reduction of growth and yield characteristics were higher because of excess-moisture injury.
Keywords
Planting density; Sowing date; Tiller; Proso millet; Growth characteristics;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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