Shoot inhibition inSolanum tuberosum. I. Response to ammonium and nitrate nitrogen sources |
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Authors: | Deborah D McCown D H Dinkel |
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Institution: | 1. Department of Horticulture, University of Wisconsin, 53706, Madison, Wisconsin 2. Institute for Agricultural Sciences, University of Alaska, 99701, Fairbanks, Alaska
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Abstract: | Solanum tuberosum Group Tuberosum plants grown in a non-nutritive media exhibit a shoot inhibition which follows the normal tuber bud dormancy. The shoot inhibition is characterized by very slow growth of the aerial portion of the plant with little leaf development. An external source of nitrogen, either nitrate-N or ammonium-N, applied to the roots of Iopride plants overcame the inhibition while only a nitrate-N source was effective in overcoming the inhibition of Kennebec plants. Group Phureja and Stenotomum and otherSolanum species evaluated did not show the shoot inhibition phenomenon. |
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