Peach flower thinning with CEPA

Peach flower thinning with CEPA allowed a good, proportional control of fruit set. It also reduced June drop and preharvest drop. Final fruit size was proportionally increased by hand thinning. Flower thinning with CEPA, however, stunted the growth of persisting fruit recalling analogous response to...

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Veröffentlicht in:Rivista di ortoflorofrutticoltura italiana 1981-03, Vol.65 (2)
Hauptverfasser: Forlani, M, Pasquarella, C, Pugliano, G. (Naples Univ., Portici (Italy). Istituto di Coltivazioni Arboree)
Format: Artikel
Sprache:ita
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Zusammenfassung:Peach flower thinning with CEPA allowed a good, proportional control of fruit set. It also reduced June drop and preharvest drop. Final fruit size was proportionally increased by hand thinning. Flower thinning with CEPA, however, stunted the growth of persisting fruit recalling analogous response to this chemical sprayed on fruitlets. Final fruit size remained in the range of the unthinned control and showed no relation with the amount of thinning caused by the chemical. The objective of future research is to screen for chemicals which have a good control on flower abscission but, unlike CEPA, do not hamper fruit growth. Trattamenti fiorali con CEPA su pesco (Prunus persica L., Batsch) hannoo permesso di ottenere un controllo dell'allegagione proporzionale alle concentrazioni impiegate. Inoltre, tali trattamenti hanno ridotto la cascola di giungo e la cascola pre-raccolta. Se in tal senso i trattamenti fiorali sembrano interessanti, l'uso specifico del CEPA da una forte inibizione dello sviluppo dei frutti che, a maturazione, presentano una taglia sostanzialmente simile a quella dei frutti non diradati. La sperimentazione in questo settore deve pertanto mirare alla ricerca di prodotti alternativi privi delle proprieta inibitive sullo sviluppo proprie del CEPA.
ISSN:0035-5968