Growth Substances in Relation the the Rooting of Salix fragilis Cuttings

Publisher Website
Google Scholar
Abstract
An attempt has been made to correlate seasonal variations in the rooting responses of Salix fragilis cuttings with their content of growth-promoting substances. Although they were both low in early dormancy and higher in late dormancy and in summer there was not an exact correlation in all months. It was found that extracts of S. fragilis cuttings taken in dormancy strongly inhibited the action of IAA on the growth of Avena coleoptile segments. This inhibitory influence was less in extracts of cuttings taken at the end of dormancy and in summer. Extracts of cuttings which had been left in water to root showed a striking decrease in their inhibitory action on IAA.

This publication has 0 references indexed in Scilit: