The influence of benomyl formulation on the response of cucumber seedlings ( Cucumis sativus ) to dibutylurea
✍ Scribed by Gaffney, James F.; Tolson, J. Keith; Querns, Robert; Shilling, Donn G.; Moye, H. Anson
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 178 KB
- Volume
- 52
- Category
- Article
- ISSN
- 1526-498X
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✦ Synopsis
Experiments were conducted in a glasshouse to evaluate the phytotoxicity of dibutylurea (DBU), a breakdown product of benomyl, benomyl formulations and constitutive ingredients of "BenlateÏ Dry Flowable (DF) on whole cucumber (Cucumis sativus. Poinsett 76) plants. Benlate Wettable Powder (WP) and DF formulations did not a †ect the phytotoxicity of DBU. When commercially purchased (samples obtained from growers) DF and WP formulations containing equivalent DBU concentrations were compared for phytotoxicity, no statistical interactions between formulations were observed. Benomyl, DBU and DF inert ingredients were tested alone and in combination to assess their phytotoxicity. Only DBU at rates greater than 94 mg litre~1 caused a reduction in root and shoot growth. Also DBU applied alone or as a component of either Benlate formulation was shown to reduce the peak-to-terminal chlorophyll a Ñuorescence ratio measured in vivo by a plant productivity Ñuorometer. 1998 ( SCI.