The Differences in Cadmium Tolerance among Two Rice Cultivars

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Title:	The Differences in Cadmium Tolerance among Two Rice Cultivars 兩種水稻對於鎘忍受性差異之研究
Authors:	傅木錦
Contributors:	生科系
Keywords:	水稻鎘忍受性 Oryza sativa Seed germination Seedling growth Cadmium
Date:	1998-05
Issue Date:	2016-07-26 14:08:27 (UTC+8)
Abstract:	本研究的探討鎘對於兩種水稻，台中10號和台農67號種子發芽和種苗生長之效應。台中10號在種子發芽和芽之生長方面較台農67號具較高之忍受性，在根延長性方面則正好相反。當鎘濃度達2000ppm時，兩種水稻之發芽均受抑制，而根之生長和芽之生長之抑制作用，則發生在200ppm之鎘濃度。至於，種苗生長抑制作用，則發生在更低濃度的20ppm。種苗內鎘含量之初步分析，顯示經24小時鎘處理，兩種種苗均累積較培養液高數倍之鎘。 The effects of cadmium (Cd) on seed germination and seedling growth of two rice (Oryza sativea L.) cultivars Taichung 10 and Tainung 67 was investigated. Taichung 10 can tolerate a much higher concentration of cadmium than Tainung 67 in the case of seed germination and plumule growth, but the reverse was fure for root elongation. At the concentration of 2000ppm the germination of both cultivar of seeds were strongly inhibited. As for the root growth and plumule growth inhibition occurred at 200 ppm of Cd. Whereas seedling growth were strongly inhibited at a much lower concentration of 20 ppm. Preliminary analysis of Cd content in seeding indicated that after 24 hours treatment, seedlings of both cultivars accumulated several fold of Cd to that of the culture medium.
Relation:	華岡理科學報 15 民87.05 頁73-85
Appears in Collections:	[College of Science] Hwa Kang Journal of Sciences

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