Effects of Sowing Time on the Growth and Yield of Proso Millet (Panicum miliaceum L.) in Jeonbuk Area
2016
Choi, K.H., Jeollabuk-do Agricultural Research and Extension Services, Iksan, Republic of Korea | Yu, Y.J., Jeollabuk-do Agricultural Research and Extension Services, Iksan, Republic of Korea | Seo, S.Y., Jeollabuk-do Agricultural Research and Extension Services, Iksan, Republic of Korea | Kang, C.H., Jeollabuk-do Agricultural Research and Extension Services, Iksan, Republic of Korea | Lee, K.K., Jeollabuk-do Agricultural Research and Extension Services, Iksan, Republic of Korea | Song, Y.J., Jeollabuk-do Agricultural Research and Extension Services, Iksan, Republic of Korea | Kim, C.K., Jeollabuk-do Agricultural Research and Extension Services, Iksan, Republic of Korea | Lee, S.Y., Wonkwang University, College of Agriculture, Iksan, Republic of Korea | Jung, K.Y., NICS, RDA, Miryang, Republic of Korea
This study was conducted to evaluate the effects of different sowing times (May 25, June 10, June 25, July 10, and July 25) on growth and yield of four proso millet (Panicum miliaceum L.) cultivars (Hwanggeumkijang, Manghongchal, Ibaekchal, and Hwangsilchal) at a cultivation area in Iksan, Jeonbuk Province. Heading and ripening times were delayed, with later sowing times in all cultivars, and the periods for heading and ripening were shortened. For sowing from May 25 to July 25, the growth stage was shorter by 40 days in Manghongchal, 38 days in Hwanggeumkijang, 36 days in Hwangsilchal, and 30 days in Ibaekchal. The culm length, ear length, ear width, and culm diameter differed significantly between the cultivars and sowing times. In particular, the culm and ear lengths were considerably reduced when the sowing time was delayed. The grain yield (kg/10a) of Hwanggeumkijang and Ibaekchal was 312 and 359 kg, respectively, for sowing on June 10; and that of Manhongchal and Hwangsilchal was 286 and 404 kg, respectively, for sowing on June 25. Thus, the optimum sowing time was June 25 for Hwanggeumkijang and Ibaekchal, and June 10 for Manhongchal and Hwangsilchal.
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