Volume 46 Number 3 Article 7
Year 1992 Month 7
Title: Effects of Debudding and Defruiting on Alternate Bearing in Pistachio (Pistacia vera L.)
Authors: T. Caruso, L. Di Marco, A. Motisi and A. Raimondo
Abstract:
Dormant and swelling inflorescence buds, inflorescences and infructescences were removed from both whole and half the canopy of
cv. 'Bianca' pistachio female trees in order to
investigate their role on alternate bearing.
Summer inflorescence bud drop was almost
totally avoided in the whole-canopy treated
trees whereas in the non-bearing side of the
half-canopy treatments, removing after full
bloom still promoted a low percentage (about
20%) of inflorescence bud abscission.
The latter
treatment showed that the influence of the
bearing half-canopy on the non-bearing one
depended on the stage of the reproductive
organs (inflorescence bud, inflorescence, infructescence)
at removal time.
The research also
pointed out the importance of studying alternate
bearing in pistachio by whole-tree treatments,
because results from scaffold treatments can be
affected by the crop load of other parts of the
tree.
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