| Autor: |
CARLISLE, D. B., ELLIS, PEGGY E., MCVEIGH, L. J. |
| Zdroj: |
Nature; October 1968, Vol. 220 Issue: 5163 p189-190, 2p |
| Abstrakt: |
THE plant growth retardant (2-chloroethyl)-trimethyl-ammonium chloride (CCC, ‘Cycocel’) has been shown to reduce the longevity and fecundity of aphids. Van Emden1grew brussels sprouts in soil to which CCC had been added; Tahori, Halevy and Zeidler2used cut oleander leaves with their petioles standing in a solution, while Bhalla and Robinson3added 0.5 to 2.0 per cent of CCC to an artificial diet on which their aphids were feeding. CCC may affect the concentration of soluble nitrogen and carbohydrates in the phloem of plants, and so Van Emden1suggests that his result “may be a nutritional effect rather than the effect of toxic properties of any cycocel taken up by the aphids”. We report here the effects of direct administration of CCC to locusts either by feeding or by injection. |
| Databáze: |
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| Externí odkaz: |
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