University of Khartoum

Effect of Some Organic Insecticides on the Yield and Quality of Field- grown Tomatoes (Solanumlycopersicum L.)

Effect of Some Organic Insecticides on the Yield and Quality of Field- grown Tomatoes (Solanumlycopersicum L.)

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Title: Effect of Some Organic Insecticides on the Yield and Quality of Field- grown Tomatoes (Solanumlycopersicum L.)
Author: Mahajop, Maaza Mohammed Yosef
Abstract: The objective of this research was to evaluate the vegetative and reproductive parameters of field -grown tomato in response to organic insecticides. An experiment was,carried out at the orchards of theDepartment of Horticulture, Faculty of Agriculture, University of Khartoum, Sudan during the period November 2011 - March 2012. The layout of the experiment was randomized complete block design with fourreplicates.Treatments were threeorganic natural insecticides, namely Vertamic, ‘Neem’ seedkernels’ water extract,Argelleaves’ water extract and the control (no insecticide). Organic fertilization using chicken manure and plastic mulching for weeds control were used in all treatments. Seedlings of tomato plant were transplanted on 22November 2011, and the experiment continued for 17weeks. Starting from 6-17 weeks after transplanting (WAT), data were collected on number of branches per plant, number of trusses per plant, number of total flower buds per plant, marketable and unmarketable yield. At the end of the experiment average fresh and dry weights per plant wererecorded.Results indicated that number of branches/ plant, number of trusses/ plant, number of total flower buds/ plant were not significantly different among treatmentsduring the period 6-14 WAT. However,total and marketable yields were significantly (P<0.05)different.The unmarketable yield showed no significant differenceduring the period10-17 WAT. Also fresh and dry weight per plant showed no significant difference among treatments. In conclusion, use of the organic insecticide Vertamicgave higher yield (19.4t/ha) than the other two organic insecticide, control as well as the conventional tomato yield in Khartoum State(13.37) t/ha (reports Ministry of Khartoum State 2006- 2007- 2008).Further investigations need to be carried out to verify the above results.
URI: http://khartoumspace.uofk.edu/123456789/24406


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