Abstract
The effect of twelve amino acids and lactalbumin hydrolysate in concentration of 200 mg 1−1 on rooting of the dwarf apple rootstocks P 2 and P 60 was testedin vitro. Arginine, omithine, glutamic acid and glycine enhanced root number of the P 60 rootstock; proline and lactalbumin hydrolysate were neutral; and asparagine, tyrosine, methionine, cysteine and glutamine lowered the root number. Tyrosine, methionine, cysteine and glutamine reduced almost completely rooting of P 60. In the recalcitrant P 2 rootstock aspartic acid, glutamic acid and omithine significantly enhanced the number of roots and rooted shoots, arginine and tryptophan increased the root number only slightly, asparagine was neutral, and proline reduced the root number.
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Orlikowska, T. Effect of amino acids on rooting of apple dwarf rootstocksin vitro . Biol Plant 34, 39–44 (1992). https://doi.org/10.1007/BF02925788
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DOI: https://doi.org/10.1007/BF02925788