Factors Influencing Absorption of 14C(2-chloroethyl)phosphonic Acid by Leaves of Cherry1
| Autor: | J. A. Flore, M. J. Bukovac |
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| Rok vydání: | 1982 |
| Předmět: | |
| Zdroj: | Journal of the American Society for Horticultural Science. 107:965-968 |
| ISSN: | 2327-9788 0003-1062 |
| DOI: | 10.21273/jashs.107.6.965 |
| Popis: | 14C(2-chloroethhyl)phosphonic acid (ethephon) was readily absorbed by leaves of cherry (Prunus cerasus L. cv. Montmorency: Prunus avium L. cv. Windsor, Napoleon). Penetration was greater (20–25 ×) through the abaxial than the adaxial surface, in light than in dark, and for ‘Windsor’ and ‘Napoleon’ than for ‘Montmorency’. Penetration was temperature-dependent, increasing 55 × between 15–35°C. The addition of a surfactant (X-77) increased wetting and penetration (+ 65%). Radioassay of ethylene released after 14C-ethephon treatment indicated that most of the ethylene (>80%) was derived from ethephon and not endogenously produced. The significance of these findings in relationship to field application is discussed. |
| Databáze: | OpenAIRE |
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