KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)
- Volume 44 Issue 2
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- Pages.163-165
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- 1999
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- 0252-9777(pISSN)
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- 2287-8432(eISSN)
Zinc Chloride Toxicity on Free Proline and Organic Acids in Germinating Rice Seed
- Kim, Sang-Kuk (Kyongbuk Provincial ATA) ;
- Chung, Sang-Hwan (Kyongbuk Provincial ATA) ;
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Lee, Sang-Chul
(Dept. of Agronomy, Kyungpook National University) ;
- Lee, Seong-Phil (Kyongbuk Provincial ATA)
- Published : 1999.06.01
Abstract
The study was conducted to find the critical concentrations of zinc toxicity and to determine the changes of the contents of free proline and organic acids with treatment of different zinc chloride concentrations during rice germination and seedlings grown for seven days. The concentration of zinc chloride, 140 ppm, inhibited root elongation as much as 46 times compared with the control, and the germination rate was also decreased in all treatments of zinc chloride, showing that the germination rate decreased more with increasing concentrations of zinc chloride. Its rate was only 13% with treatment of 140 ppm zinc chloride. The content of free proline with treatment of zinc chloride, 140 ppm, was highest about 4,873