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Calcium Chemistry  ]
Abbreviation: Ca

Dictionary of botanic terminology - index of names

Calcium deficiency [ Horticulture - Phytopathology ]
  Absence or insufficiency of calcium needed for normal growth and development.  
Calcium deficiency symptoms are most pronounced in young plant tissue. The emerging leaves produce brownish-black (dead tissue) areas along the leaf margins. The newer or bud leaves are distorted at their tips or bases. This causes later growth to have a cut-out appearance at these points. As the leaf expands, the surfaces can become puckered because of the injury to the leaf tips. With more severe calcium deficiency, the new bud tissue or entire growing point may blacken and die.





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