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《Journal of South China Normal University(Natural Science)》 1985-01
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Wen Zaoquin Pan Ruichi  
The peanut seedlings ( ov. Yueyou 551) were sprayed with 1000 p.p. m B9 solution at the three-leaf stage. After the treatment, the length of the main stem was measured and the activity of peroxidase in root, leaf and the tip of the main stem determined at intervals of one day.The results obtained were as follows: 1. In normal conditions, the activity of the peroxidase in different organs was: rootleaftip of the main stem in sequence. The older the seedlings grew, the higher the peroxidase activity became. 2. B9 remarkably increased the peroxidase activity in the tip of the main stem; however, there was not any effection the rootandthe leaf. 3. B9 obviously inhibited the elongation of the tip of the main stem. in peanut seedlings.
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