Studies with ethephon for facilitating olive harvest

Lavee, S.; Haskal, A.

doi:10.1016/0304-4238(75)90023-0

Cited by 15 publications

(15 citation statements)

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“…Most previous research on ethephon has focused on its effects on the physiology of crops and economic trees, such as barley, apple, and olive222627. Our pot experiment indicated that a high concentration of ethephon effectively eradicated Ipomoea cairica .…”

Section: Discussionmentioning

confidence: 64%

“…Ethephon’s mode of action acts via liberation of ethylene, which is absorbed by the plant and interferes in the growth process. It has been reported that ethephon has a role in inhibiting plant growth5, promoting stomatal opening6 and flowering78, inducing pollen sterility9, influencing biosynthesis of secondary metabolites101112 and fruit ripening, improving fruit quality1314151617, enhancing herbicide efficacy pretreatment18, eradicating pests19, depressing vesicular arbuscular mycorrhiza formation20 and nodulation21, and facilitating the harvest of fruits2223. Some research also indicates that high concentrations of ethephon are phytotoxic and can cause damage to plants2425.…”

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confidence: 99%

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A novel role of ethephon in controlling the noxious weed Ipomoea cairica (Linn.) Sweet

Sun

Zhang

et al. 2015

Sci Rep

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Several auxin herbicides, such as 2, 4-D and dicamba, have been used to eradicate an exotic invasive weed Ipomoea cairica in subtropical China, but restraining the re-explosion of this weed is still a challenge. Since ethylene is one of the major intermediate functioning products during the eradication process, we explored the possibility, mechanism and efficiency of using ethephon which can release ethylene to control Ipomoea cairica. The results of the pot experiment showed that 7.2 g /L ethephon could totally kill Ipomoea cairica including the stems and roots. The water culture experiment indicated that ethephon released an abundance of ethylene directly in leaves and caused increases in electrolyte leakage, 1-aminocyclopropane-1-carboxylic acid (ACC), abscisic acid (ABA) and H2O2 and decreases in chlorophyll content and photosynthetic activity, finally leading to the death of Ipomoea cairica. The field experiment showed that the theoretical effective concentration of ethephon for controlling Ipomoea cairica (weed control efficacy, WCE = 98%) was 4.06 g/L and the half inhibitory concentration (I50) was 0.56 g/L. More than 50% of the accompanying species were insensitive to the phytotoxicity of ethephon. Therefore, ethephon is an excellent alternative herbicide for controlling Ipomoea cairica.

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Section: Discussionmentioning

confidence: 64%

mentioning

confidence: 99%

A novel role of ethephon in controlling the noxious weed Ipomoea cairica (Linn.) Sweet

Sun

Zhang

et al. 2015

Sci Rep

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“…Ethephon was found to be a very efficient tool for reducing fruit removal force (FRF) for conventional or mechanical harvesting of olives (Lavee et al 1973, Lavee and Haskal 1975). Ben‐Tal and Lavee (1976) showed an increase in ethephon efficiency in reducing FRF in olives when the pH of the ethephon was brought to 7.0 with phosphate buffer.…”

Section: Introductionmentioning

confidence: 99%

The Fate of 1,2‐¹⁴C‐(Chloroethyl) Phosphonic Acid (Ethephon) in Olive (Olea europea)

Epstein

Klein

Lavee

1977

Physiologia Plantarum

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The translocation and metabolism of ethephon at pH 7.0 and its effect on abscission of olive fruit, were studied in attached and detached fruits. In detached olives, the lowest fruit removal force values were achieved when the fruits were treated at their proximal cavity and kept under humid conditions. Following application of 14C‐ethephon to the proximal cavity 63% of the label was absorbed within 4 h; evolution of 14C‐ethylene proceeded at a slow rate, mainly from 14C‐ethephon remaining on the olive surface, totaling 37% of the applied ethephon in 20 days. 14C‐ethephon disappeared rapidly after its application to olive on the tree. More 14C‐ethephon could be extracted from olives on the trees after distal application than after proximal application. Since the response of detached olives to treatments with ethephon was similar to that of attached olives in regard to fruit removal force reduction, the former can be used for the study of many aspects of ethephon and ethylene metabolism in olives. In our study no ethephon metabolites other than 14C‐ethylene could be detected after 14C‐ethephon application to attached or detached olive fruits.

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“…Both ethylene gas (5, 12) and ethylene-releasing compounds (13,16,21) have been used in abscission studies. As these compounds have been generally applied exogenously, the metabolic response depended on penetration and, with the ethylene-releasing compounds, on a nonmetabolic degradation (6, 15).…”

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Ethylene Evolution following Treatment with 1-Aminocyclopropane-1-carboxylic Acid and Ethephon in an in Vitro Olive Shoot System in Relation to Leaf Abscission

Lavee¹,

Martin²

1981

Plant Physiol.

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Ethylene had been shown to be an important senescence (1) and abscission (1,11,14) promoting agent. Both ethylene gas (5, 12) and ethylene-releasing compounds (13,16,21) have been used in abscission studies. As these compounds have been generally applied exogenously, the metabolic response depended on penetration and, with the ethylene-releasing compounds, on a nonmetabolic degradation (6, 15). Until recently, known metabolic precursors of ethylene did not significantly increase ethylene evolution. The recent work of Adams and Yang (3) described the role of ACC2 in the pathway of ethylene biosynthesis. This last step precursor of ethylene, unaffected by AVG, is readily metabolized (9, 23) to ethylene and application of ACC to various plant tissues results in a rapid increase in ethylene evolution (10).Endogenous ethylene evolution, as well as that induced by an ethylene-releasing compound (ET), in relation to abscission of various olive organs, has been established (19). In previous studies (17, 18) we introduced an in vitro system in which ET was fed to the shoots via the cut base and moved in the transpiration stream. In these studies we reported abscission induced by ET to be concentration and application time-dependent. Under the conditions reported, leaf abscission was induced, whereas inflorescences ' On sabbatical leave

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Studies with ethephon for facilitating olive harvest

Cited by 15 publications

References 2 publications

A novel role of ethephon in controlling the noxious weed Ipomoea cairica (Linn.) Sweet

A novel role of ethephon in controlling the noxious weed Ipomoea cairica (Linn.) Sweet

The Fate of 1,2‐¹⁴C‐(Chloroethyl) Phosphonic Acid (Ethephon) in Olive (Olea europea)

Ethylene Evolution following Treatment with 1-Aminocyclopropane-1-carboxylic Acid and Ethephon in an in Vitro Olive Shoot System in Relation to Leaf Abscission

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Studies with ethephon for facilitating olive harvest

Cited by 15 publications

References 2 publications

A novel role of ethephon in controlling the noxious weed Ipomoea cairica (Linn.) Sweet

A novel role of ethephon in controlling the noxious weed Ipomoea cairica (Linn.) Sweet

The Fate of 1,2‐14C‐(Chloroethyl) Phosphonic Acid (Ethephon) in Olive (Olea europea)

Ethylene Evolution following Treatment with 1-Aminocyclopropane-1-carboxylic Acid and Ethephon in an in Vitro Olive Shoot System in Relation to Leaf Abscission

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The Fate of 1,2‐¹⁴C‐(Chloroethyl) Phosphonic Acid (Ethephon) in Olive (Olea europea)