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Chemicals to promote fruit abscission of olives

, : Chemicals to promote fruit abscission of olives. Acta Horticulturae (34): 379-383

The possibility of using ethephon or cycloheximide to improve the performance of mechanical limb shakers is discussed.

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Related references

Snobar, B., 1978: Maturity parameters of olives and the use of abscission chemicals. Studies were made from October to December of maturity parameters, including fruit volume, weight, oil content and removal force in Nabli olives in 2 districts, and on the effects of Ethrel [ethephon] at 600 p.p.m. and ALSOL (2-chloroethyl-tris(2&...

Hartmann, H.T.; Heslop, A.J.; Whisler, J., 1968: Chemical induction of fruit abscission in olives. Foliar sprays of several fruit abscission-promoting chemicals, with and without additives, were applied to olive trees and the effects assessed on fruit and leaf abscission. In trials in Australia the Na, K and NH4salts of salicylic acid (each at...

Hegazi, E.S.; E.S.erbini, N.R.; Eissa, M.A.; Ibrahim, F.A., 1987: Physiological and histological studies on fruit abscission in olives. Effects of ethephon and CGA-13586 [etacelasil], applied 2 weeks before harvest, were studied with 2 cultivars over 2 seasons. Significant reductions in fruit removal force and good fruit abscission were obtained, especially with ethephon. High con...

Humanes, J.; Herruzo, B.; Pastor, M., 1978: Utilization of Alsol as a fruit abscission agent in olives. Studies were carried out at different localities with the olive oil cvs Picual and Hojiblanca, and the table olive cv. Manzanilla treated with Alsol [etacelasil] at 750-3000 p.p.m. using either low or high volume sprays. The trees were treated in...

Schoot, Pe, 1976: Test results with new growth regulators for advancing fruit abscission of ripe olives

Lavee, S.; Barshi, G.; Haskal, A., 1973: Natural fruit drop and induced abscission to facilitate mechanical harvesting of Manzanillo and Souri olives. Natural fall of green and half-black fruit was fairly constant during the 5 weeks before harvest, whereas that of black fruit increased steadily over the period. Of various halogenated acetic acids tested for their ability to induce abscission, di...

Wilson, W.C.; Holm, R.E.; Clark, R.K., 1978: Abscission chemicals - aid to citrus fruit removal. A review and discussion on the use of Ethrel (ethephon), Acti-Aid (cycloheximide), Release (5-chloro-3-methyl-4-nitro-1H-pyrazole), Pik-off [glyoxime] and Sweep (chlorothalonil).

Calabrese, F.; Sottile, I., 1971: Trials with chemicals for olive fruit abscission. Six-year-old olive trees cv. Moraiolo were sprayed with Acti-Dione at 15, 50 or 100 p.p.m., Ethrel at 100, 250 or 500p.p.m. or Cascol (composition undisclosed) at 1 %. After 14 days and 2 shakings of 8-10 seconds each the best results (90% drop) w...

Donno, G.; Godini, A.; Reina, A., 1972: A preliminary contribution to the study of natural abscission of olives in relation to the most appropriate time for applying abscission-inducing treatments. In both years of the study natural fruit abscission was poor in November but increased rapidly from December onwards. However, the use of abscission-inducing chemicals in early November was not considered advisable owing to the low oil content of...

E.Zeftawi, B.M., 1980: Effects of various abscission chemicals on fruit loosening of citrus. In 3-year trials with navel and Valencia oranges and lemons [cv. unspecified] several abscission chemicals were compared with the standard ethephon (150-350 p.p.m.) treatment. The oranges were generally more responsive to treatments than lemons. O...