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Effect of Chemical Treatments and Electric and Magnetic Field Treatments on Germination of Onion Seeds  

Choi, Choong-Lyeal (Institute of Agricultural Science and Technology, Kyungpook National University)
Kwak, Dong-Jun (Department of Agricultural Chemistry, Kyungpook National University)
Park, Man (Department of Agricultural Chemistry, Kyungpook National University)
Song, Kyung-Sik (Department of Agricultural Chemistry, Kyungpook National University)
Rhee, In-Koo (Department of Agricultural Chemistry, Kyungpook National University)
Kim, Jang-Eok (Department of Agricultural Chemistry, Kyungpook National University)
Choi, Jyung (Department of Agricultural Chemistry, Kyungpook National University)
Lee, Dong-Hoon (Department of Agricultural Chemistry, Kyungpook National University)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.38, no.2, 2005 , pp. 78-84 More about this Journal
Abstract
This study was conducted to investigate the effects of chemical treatments and electric and magnetic field treatments on germination and seedling growth of onion (Allium cepa L.). Germination ratios of the onion seed were not much different among the tested species. However, germination ratio was much higher in species of small and medium size seed than that of large one. Moisture content of the seeds was shown to be more suitable in the range of 10-15% for seed germination compare to that of 20%. The germination ratio of onion seeds was found to be increased by the chemical treatments in the order of GA<$NaNO_3$<$KNO_3$. In particular, the treatments with 0.1 and 0.2% $KNO_3$ increased the germination ratio by 13 and 15% compared to that of the non-treatment. The seeds treated with electric or magnetic field resulted in much higher germination ratio and better initial growth. Germination ratios of 86 and 88% were found in the 10 kV and 4 Gauss treatments, respectively. The length and weight of the seedlings grown for 40 days after transplanting were increased by 23-45% with 8 kV and 12 Gauss treatments compared to those of non-treatment.
Keywords
Onion; Germination; Moisture content; Electric field; Magnetic field;
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