Vol. 74 No: 2

Title:
Orchard growth, flowering and fruiting of micropropagated Japanesepersimmon trees

Authors:
T. TETSUMURA, R. TAO and H. YUKINAGA

pp: 251-253

Abstract:
Shoot growth, flowering and fruiting of micropropagated (M) and grafted (G) Japanese persimmon trees (Diospyros kaki L. cv. Nishimurawase) were compared over seven years in Japan. Overall, M trees established better without transplanting shock and grew more vigorously as indicated by the changes in tree height and trunk cross-sectional area. Total shoot length per tree was greater in M trees, mainly due to an increase in the number of shoots, although average shoot length was about 30% higher as well. There was generally only a small effect on female flowering between the tree types, and no significant effect on male flowering. The cumulative yield of M trees was about 20% higher than that of G trees because of higher yields from M trees in the last two years, but the difference was not significant. There was no significant difference in yield efficiency, and no effect on fruit quality. These results suggested that M trees would be advantageous for some commercial orchards where initial vigorous vegetative growth is preferable, such as orchards with less fertile soil and/or in colder areas.

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