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EVALUATION OF GROWTH, YIELD AND POST HARVEST QUALITIES OF TWELVE CASSAVA (Manihot esculenta Crantz) GENOTYPES IN NSUKKA NIGERIA

ABSTRACT

 Twelve cassava genotypes were screened for growth, yield, pest and disease responses and post harvest qualities with a view to obtaining suitable genotype (s) that could be recommended for release to farmers. The growth, yield, pest and disease response experiments were conducted in the research field of the Department of Crop Science, University of Nigeria, Nsukka, while the post harvest quality assessment was performed in the Department of Crop Science laboratory. The design of the field experiment was Randomized Complete Block Design (RCBD) with three replicates and completely Randomized Design (CRD) for the laboratory experiment. Generally, the results obtained from the studies showed significant genotypic variation but genotype x age (GxA) interaction was non-significant for most of the traits. The genotypic variations confirmed the genotypes as distinct genetic entity with variable potentials. The inter relationships among components of biological and agricultural yields were significant. Out of the twelve (12) genotype of cassava, five (5) were found to be the most adaptable genotypes to Nsukka agro-ecology after evaluation and listed in order of performance from high to low. They include TMS/96/1087, TMS 96/0304, NR 930255, TMS96/1432 and TMS 96/1672. The periodic disease severity was only significant for cassava bacterial blight (CBB). Cassava bacterial blight attack was mild at five (5) months after planting and severe at nine (9) months after planting. The study on storage quality attributes of cassava chips showed that both genotypic variation and genotype x age interaction were significant. The results show that 9 month old plant quickly deteriorated under storage among the various characters studied than 6 and 12 month old plants with 12 month old plant having the highest quality of cassava chips. However, TMS 96/1672, TMS 96/1432 and NR 930061 have the best storage attributes of cassava chips. The poor disease and pest ratings for TMS96/1087, TMS96/0304, NR930255 precluded their recommendation for release but based on the overall assessment of growth, yield, pest and disease responses and post harvest attributes of genotypes, TMS96/1432, TMS 96/1672 were considered most appropriate for release to farmers in Nsukka agro-ecology.

Project detailsContents
 
Number of Pages102 pages
Chapter one Introduction
Chapter two Literature review
Chapter three  methodology
Chapter  four  Data analysis
Chapter  five Summary,discussion & recommendations
ReferenceReference
QuestionnaireQuestionnaire
AppendixAppendix
Chapter summary1 to 5 chapters
Available documentPDF and MS-word format


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