Impact of certain insecticides on chemical composition of greenhouse and open field pepper plants | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 10, Issue 1, 2002, Pages 39-54 PDF (458.17 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.2002.459576 | ||
| Authors | ||
| F. N. Assubaie* ; M. M. El-Garawany* ; M. A. Al-Eed | ||
| Department of Chemistry and Botany, College of Agricultural & Food Sciences, King Faisal University, P.O.Box 420, Al-Hassa 3 1982, Saudi Arabia | ||
| Abstract | ||
| Abstract: The effect of four insecticides: pirimiphos-methyl, chlorpyrifos-ethyl, cypermethrin and fenvalerate, on the • chemical composition of greenhouse and open field pepper were evaluated. Insecticides were applied at recommended rates that used to control the insect pests. Data showed dramatic effects of the insecticide treatments on moisture and ash contents of greenhouse plants in which slight increase or decrease were recorded. However, no significant differences was recorded between open field treated and untreated plants. Data of carbohydrate contents showed no significant differences among the insecticide treatments in greenhouse and open field plants and control ones, except for cypermethrin treatment in open field that showed significant reduction in carbohydrate contents. Moreover, data -revealed that carbohydrate contents were higher in all open fields than that of greenhouse treated plants. Furthermore, data showed slight reduction of P in greenhouse and significant increase in open field treated plants. In contrast, slight increase of N content was recorded in open field and dramatic effect was observed in greenhouse treated plants. In the case of trace elements, data showed an increase of Fe contents in both greenhouse and open field treated plants. However, dramatic effects were recorded in Mn, Zn and Cu contents in both experiments. In conclusion, the impact of insecticides on chemical composition of pepper plants might depend on growing conditions and locations, the form and availability of each element in soils, uptake and distribution within pepper plants, influence of environmental factors and the chemical structure of the applied insecticide. | ||
|
Statistics Article View: 1 |
||
