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Background: Cassava is an important root crop with many biotic and abiotic problems. Genetic modification is a viable option for improvement of cassava to against the production constraints. Objectives: The growth and morphology of cassava transgenic plants modified with NPT II marker and GUS reporter genes andnontransgenic (wild) cassava plants were compared to reveal difference between them. Method: The study had two experiments: in the first experiment, external morphology and quantitative growth assessment of transgenic and non-transgenic plants were examined. Growth patterns and growth correlations in plants raised from three types of stem cutting were examined in the second experiment. Results: The external morphology of the transgenic TME 12-2010 were not different from non-transgenic TME 12.However,the shape of the leaf lobe was arched in the transgenic TME 12-2010 but obovate in non-transgenic TME 12. Whether a plant is transgenic or non-transgenic, it had no influence on sprouting percentage, number of sprout per cuttings, leaf area, number of leaf, number of root per plant and total dry weight. However, sprouting percentage, number of sprout per cuttings, leaf area, number of leaf, number of root per plant, total dry weight depended on type of cuttings used as planting materials.Irrespective of types of TME and stem cutting, pattern of growth of stem, leaf, RGR, LAR, NAR and CGR were similar from planting to 8 MAP. Conclusion: Genetic modification of cassava with NPT II and GUS genes caused no growth alterations to the plant and thus, similar agronomic practices should be given to both transgenic and non-transgenic cassava plants.

Growth Analysis of Genetically Modified Cassava (Manihot esculenta Crantz) Plants Expressing NPT II Marker and GUS Reporter Genes