ISHS Acta Horticulturae 169: International Workshop on Improvement of Sweet and Sour Cherry Varieties and Rootstocks
THE EFFECTS OF WATER LOGGING ON ROOT AND SHOOT GROWTH OF THREE CLONAL CHERRY ROOTSTOCKS |
| Authors: | M. Roth, W. Gruppe |
| Abstract:
We recorded root and shoot growth of clonal cherry rootstocks P. avium F 12/1, P.mahaleb St.Lucie 64, and of P.avium x P.pseudocerasus hybrid 'Colt' in weekly intervalls. The rootstocks were grown in boxes of 12.5 liter volume with one glass side. The boxes were inclined at an angle of 22 degrees. They were flooded for 3 weeks during 3 different periods of the growing season (beginning in the middle of June until the end of July). Root growth was stopped in that part of the boxes which remained flooded for 24 h per day. In the upper part of the boxes, which were flooded for only 12 h per day, root growth was greater than that on unflooded control plants. After flooding, root growth increased in all treatments, with some differences between the different rootstocks. Shoot growth was not much affected during the flooding periods, and was more dependent on the season and the rootstock tested. No leaf symptoms were observed in the flooded trees. | |
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