Articles
POST-HARVEST VARIATION OF FREE ARGININE IN BASAL PLATE TISSUES OF TULIP BULBS ; RELATION TO BULB PHYSIOLOGICAL EVOLUTION
Article number
266_38
Pages
293 – 298
Language
Abstract
At harvest, basal plate tissues (including apical bud) of tulip bulbs, of cvs. "Apeldoorn", "Lucky Strike" and "Lustige Witwe", show different free arginine contents.
For the 3 cvs., the arginine contents remain stable or slightly decrease when the bulbs are stored at 0°C while they steadily increase when the bulbs are stored for 1 or 2 weeks at 34°C.
For the 3 cvs., the arginine contents remain stable or slightly decrease when the bulbs are stored at 0°C while they steadily increase when the bulbs are stored for 1 or 2 weeks at 34°C.
In the case of "Apeldoorn", annual differences in the arginine contents have also been observed.
The increase of arginine content at high temperature takes place simultaneously with a physiological evolution of the bulbs which is expressed in a stronger reaction to a subsequent cold treatment and in the acquisition of the capacity to show a faster flower bud differentiation.
Checking the arginine content of the basal plate tissues of a tulip bulb at harvest could thus give an indication on its physiological state.
Publication
Authors
M. Le Nard, V. Fiala
Keywords
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