Aspects of manganese nutrition in filbert trees Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/jd4730963

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  • Lime was applied at different rates to filbert trees grown in containers in an acid soil. As lime application rate increased, the leaf Mn and extractable soil Mn were significantly reduced. In control trees leaf Mn was over 1300 ppm, but no growth reduction or Mn toxicity symptoms were found. Filbert seedlings grown in a nutrient solution at two different pH levels and at different Mn rates did not show toxicity symptoms when leaf Mn ranged from 190 to 1500 ppm. A slight Mn-induced chlorosis and a reduction in growth were apparent at Mn levels of about 1800 ppm. Severe toxicity symptoms, accompanied by a sharp reduction in growth appeared at a Mn leaf concentration of 3700 ppm. As Mn in the leaves increased, Fe decreased. However, Fe/Mn ratios did not correspond with toxicity symptoms or normal growth. Filberts appear to be extremely tolerant to high Mn in their tissues.
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2011-11-14T16:47:17Z (GMT) No. of bitstreams: 1 SILBERMANRICARDOS1984.pdf: 654888 bytes, checksum: cea8835e45b523f3f19b780c463f456d (MD5)
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