Scientists
Walter O Anyanga- Plant Breeder
Paul Anguria- Crop Agronomist
Peter Takan- Plant Pathologist
Dennis Gayi-Entomologist
Technicians
Betty Alepo
Field Assistants
Ayanga Cons
Elayu
Support Staff
Evelyene Atukoit-Typist, Drivers: Ojok &
Opolot Julius

Title: Development of high yielding sesame varieties with desirable market attributes, and appropriate crop management options

Different Colour Shades of sesame seeds

1. To develop high yielding disease resistant sesame varieties with high oil content and limited shattering
2. To generate integrated management options for control of Cercospora and Cylindrosporium leaf spots, and gall midge and webworm sesame pest
3. To generate crop management options that enhance soil fertility and sesame yield
4. To disseminate sesame technologies to uptake path ways and limited end users

Identified two advanced lines for possible release ( Local 158-1 and Sesim II X 5181) and submitted for DUS testing, Wades off attack by Gall midge and webworm
(Picture)

Local 158-1

200 sesame accessions secured from ICRISAT
India and Austria and; local landrace collections were evaluated for different traits and over 50 were selected for further evaluation
10 advanced lines for oil content and limited shattering under went National Performance
Trials (NPT) at 5 districts (Kaberamaido,
Dokolo, Lira, Alebtong & Amuria)
Further evaluated over 15 advanced sesame lines for resistance to Cercospora and
Cylindrosporium leafspots and two pests (gall midge & webworm).

Advanced over 10 F2s’ to F3s’ sesame progenies for different traits (Shattering, oil content, high yield, disease and pest resistance) were planted
Tested 3 fungicides (Uthane, Muslin
& Victory) on Cercospora & cylindriosporium leaf spots; Uthane found to be more effective and victory least effective

Studied pest dynamics (Webworm and gall midge) Identified suitable planting dates for different regions thus helping in the control of Webworm and gall midge-Apac, Kaberamaido-
First rains; Lira, Dokolo- Second rains
Studied the effect of applying NPK fertilizer on sesame under different planting methods; High yields attained from row planted than broadcasted

Research Activities in progress

Evaluation of sesame crosses and selections for high yield, low shattering varieties with resistance to Cercospora and
Cylindrosporium leafspots
Evaluation of crosses, lines and selections for high yield, low shattering varieties with tolerance to gallmidge and webworm

Research Activities in progress cont’d
On farm evaluation of 9 sesame advanced lines on resistance to cercospora & cylindrosporium leaf spots and, gall midge & Webworm
Investigating the effect of planting date on incidence and severity of infestation by
Webworm & Gall midge insect pests of sesame

Research Activities in progress cont’d
Screening of in-organic and organic insecticides for effective control of sesame webworm and Gall midge pests
Evaluation of chemicals
(fungicides) on the control of
Cercospora Cylindrosporium leafspots in sesame (Uthane,
Muslin and Victory

Research Activities in progress cont’d
Evaluation of cultural management options for the control of Cercospora
Cylindrosporium leafspots in sesame
Evaluation of inorganic fertilizers on sesame
Generation of agronomic management options for improved sesame productivity

Unfavorable weather conditions e.g. prolonged drought resulting into poor crop performance
Untimely and delayed release of funds affected timely field operations
Inadequate funding
Inadequate transport affected on farm field operations

Challenges faced during the year cont’d
Lack of cold storage facility has affected the quality of germplasm maintained at NaSARRI
Old institute tractors that keep breaking down delay field operations
Seed shortages and adulteration among the farming communities have continued to afflict farmers

Lessons Learned
Participatory research provides for development of tailored technologies suitable to end users’ needs.
Due to the limited flow of funds from
Government of Uganda, there is need to source for supplementary funding from development partners
Agricultural shows, field days and farmers’ visits to institutes are very vital for knowledge sharing and information dissemination

Need for tractor hire to cope with constant tractor breakdown
Contingency budgeting to meet unexpected costs of pesticides and other chemicals to control unpredictable pests and diseases
Lack of proper germplasm storage facility at NaSARRI requires continuous seasonal field germplasm multiplication

Frequent field monitoring on farm visits is very necessary for reliable data
There is need to establish more satellite institutes to complement work of ZARDIs’.
This is vital for success of onfarm adaptive trials.

Key Activities
Key outputs (Targets)
1.1 75 accessions assembled and characterized
1.2 70 single plant selections of crosses evaluated for high oil content
& limited shattering.
1.3 60 single plant selections evaluated for resistance to Cercospora
Cylidrosporium leaf spots in sesame
1.4 60 single plant selections evaluated for resistance to gall midge and Webworm
1.1 Sesame germplasm collection, characterization and maintenance
1.2 Selection of F generations for oil content and quality
1.3 Selection of F generations for resistance to Cercospora and Cylindrosporium leafspots
1.4 Selection of F generations for resistance to gallmidge and webworm

2.1 7 chemicals evaluated for effectiveness to gall midge & webworm
2.1 Evaluation of inorganic chemicals for the control of gallmidge and webworm in sesame
2.2 6 botanical insecticides screened on station and TVCs.
2.2 Evaluation of biorationals for the control of gallmidge and webworm in sesame
2.3 3 cultural management options for gall midge & webworm tested in
4 agro-ecological zones
2.3 Evaluation of cultural management strategies for the control of gallmidge and webworm in sesame
2.4 2 cultural management options
& 2 chemicals evaluted for effectiveness against the gall midge
& webworm
2.4 Generation of IPM options for the control of gallmidge and webworm in sesame

3.1 2 chemicals identified for the control Cercospora
& Cylindrosporium leaf spots
3.2 6 single products and 2 botanical chemicals screened on station and
TVCs.
3.3 2 cultural management strategies for cercospora & cylindrosporium leaf spots developed
3.1 Evaluation of chemicals for the control of Cercospora
Cylindrosporium leafspots in sesame
3.2 Evaluation of biorationals for the control of Cercospora
Cylindrosporium leafspots in sesame
3.3 Evaluation of cultural management strategies for the control of Cercospora
Cylindrosporium leafspots in sesame

4.1 3 intercrops evaluated on 2 elite sesame varieties
4.2 4 inorganic & 3 organic fertilizers evaluated on sesame
4.3 2 Efficacy of 4 Weed management options evaluated on sesame
4.4 One improved sesame variety disseminated
4.1 Generation of appropriate intercropping patterns for improved sesame productivity
4.2 Generation of soil fertility improvement options for increased sesame yields
4.3 Generation of agronomic management options for improved sesame productivity
4.4 Production of breeder, foundation and basic seed of sesame

VODP supports activities in Sesame research and development
ZARDIs’: We are having Sesame collaborative trials with
Ngetta. This centre conducts tests for the adaptability of the DUS sesame materials
Incountry linkages: Universities: Makerere, Gulu,
Kyambogo, Arapai in areas of practical research,
Students’ mentorship and hands-on trainings, AFRII for adaptive trials.
Private sector : We actively participate with some NGOS
(SNV, UOSPA and Pikwii);

Parternship and collaboration
Seed companies - OTIS Garden Seed, UOSPA and
NASECO
Uganda Seed Traders Association: in the areas of seeds systems and policy
NAADS: This provides extension service for the dissemination of new technologies
International linkages: ICRISAT-Nairobi & India,
Austrian Institute of Technology (AIT) Vienna
Austria; Funding and variety development.