dc.contributor.author | Nakoba, Cissy | |
dc.date.accessioned | 2021-02-26T11:24:45Z | |
dc.date.available | 2021-02-26T11:24:45Z | |
dc.date.issued | 2021-02 | |
dc.identifier.citation | Nakoba C, (2021). Evaluation of nutrient dense groundnut lines for groundnut rosette and leafspot disease resistance at National Semi-Arid Resources Research Institute, Serere, Uganda. Undergraduate dissertation. Makerere University | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12281/9043 | |
dc.description | A special project submitted to the School of Agricultural Sciences in partial fulfillment for the award of Bachelor of Science in Agriculture Degree of Makerere University | en_US |
dc.description.abstract | Groundnut production is constrained by diseases such as groundnut rosette and leafspots.
National Groundnuts Improvement Programme at NaSARRI Serere recently introduced 35
Nutrient dense advanced lines from ICRISAT Malawi for selection and adaptation under
Ugandan conditions. Groundnut rosette and late leafspots are the most important diseases of
groundnuts in Uganda causing serious economic damages when not managed. The use of
resistant cultivars is the only sustainable, affordable, and environmentally friendly approach to
manage these diseases. There is however, no comprehensive study on the resistance of different
nutrient dense lines to groundnut rosette and leafspot. The main aim of this study was to
determine the performance of nutrient dense groundnut lines for yield and resistance to
groundnut rosette and leaf spot diseases. A field experiment was conducted at the National SemiArid Resources Research Institute (NaSARRI), Serere in a Randomized Completely Block
Design (RCBD). Thirty-five (35) nutrient dense lines were evaluated. Data was collected on
disease severity scored on a scale from 0 - 9. Data was subjected to analysis of variance
(ANOVA) using GenStat statistical package. Results revealed significant differences (P ≤ 0.05)
in severities of rosette and leafspot diseases between nutrient dense lines at different weeks after
emergence. Severity scoring revealed that three nutrient dense lines (CGV-SM 01514, ICGX-SM
14019-B-14-1-1-4-1 and ICGX-SM 14001-B-3-1-2-7-1) were resistant to rosette; while one
nutrient dense line (ICGX-SM 14001-B-6-1-3-1-1 and Serenut2 (ICGV-SM 90704) were
resistant to leafspot. Yield parameters (fresh and dry plot weight and weight of 10 seeds) were
not significant (P > 0.05) between the nutrient dense lines. Line ICGX-SM 14001-B-6-1-3-1-1
however with a higher 10 seed weight, had a higher resistance to groundnut leaf spot and
moderately high resistance to groundnut rosette diseases. The nutrient dense lines showing
resistance and/or moderate resistance to both diseases should be evaluated nationwide for more
consistency. This could be used for future crop improvement of groundnuts. Nutrient dense line
ICGX-SM 14001-B-6-1-3-1-1 should be used as a check genotype since it showed promising
results in the study. The nutrient density levels in thee lines need to be quantified under Ugandan
condition. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Makerere University | en_US |
dc.subject | Nutrient dense groundnut | en_US |
dc.subject | Groundnut rosette | en_US |
dc.subject | Leafspot disease | en_US |
dc.subject | Disease resistance | en_US |
dc.subject | NaSARRI | en_US |
dc.title | Evaluation of nutrient dense groundnut lines for groundnut rosette and leafspot disease resistance at National Semi-Arid Resources Research Institute, Serere, Uganda | en_US |
dc.type | Thesis | en_US |