ISHS Acta Horticulturae 410: II International Cherry Symposium
ROOTSTOCK EFFECTS ON GROWTH AND PRODUCTIVITY OF 'MONTMORENCY' SOUR CHERRY |
| Authors: | J.L. Anderson, T.E. Lindstrom, J.I. del Real-Laborde |
| Abstract:
'Montmorency' sour cherry plantings were established on 8 clonal rootstocks in 1980 and on 20 clonal rootstocks in 1987. Mahaleb, the standard cherry rootstock in Utah orchards, was used for tree growth and production comparisons. Trees on the MxM series, Colt, and the St. Lucie (SL) rootstocks had greater trunk diameter and leaf area indices (LAI) than did trees on Mahaleb; trees on Mazzard and the Giessen (G) and Gembloux (GM) series rootstocks had smaller trunk diameters and LAIs than did trees on Mahaleb. Heaviest yielding trees in 1992 were on MxM 2 (37 kg/tree), SL 275 (36.3 kg/tree), and GI 196/13 (35.2 kg/tree). Trees on all other rootstocks yielded less than did those on Mahaleb (34.6 kg/tree). There was a wide range in production among trees on the Giessen rootstocks; production on trees on the MxM rootstocks were all comparable to those of trees on Mahaleb, while production of trees on GM rootstocks was low. Trees on GI 173/9, GI 196/13, and GI 148/8 had greater yield efficiency (yield per unit trunk diameter) than did trees on Mahaleb. Trees on GI 152/1, GI 152/2, and GI 173/9 (Gisela 10) were generally unhealthy and experienced a high rate of tree mortality after six growing seasons. Rootstock also affected bloom date; trees on Mahaleb bloomed up to 5 days earlier than did trees on Mazzard or the MxM rootstocks, depending on the season. | |
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