Identifizierung und Bestimmung einiger Gibberelline und der Einfluß von Chlorcholinchlorid (CCC) auf das Gibberellinspektrum der einzelnen Getreidearten

摘要

Identification and determination of some gibberellins in the gibberellin spectrum of some cereals, als affected by CCC treatmentThe gibberellin contents of wheat, barley and oat plants, treated with CCC, were studied during the vegetative period. It was possible to identify a characteristic gibberellin spectrum for every cereal plant examined, although the variation was in a limited number of gibberellin forms. A great variation in the content of individual gibberellic acid forms was noticed, as well, among the different cereals studied. The highest content of gibberellins was found with GA3. The content of GA5was lower than that of GA9while was not generally higher than that of GA8. CCC‐treated cereal plants showed lower values of gibberellins when compared with those of control. On the other hand, CCC treatment did not affect the content of gibberellins in the spikes which showed a considerably high content of GA3, GA5and GA9. A higher content of GA7was observed in both barley and oats, but not in the case of wheat, during tillering stage. However it was difficult, from the results of the present work, to indicate whether GA7is reponsible for the week effect of CCC obtained with both barley and oats or no