RESEARCH FOR DEVELOPMENT IN-HOUSE REVIEW 2012 Stress Tolerant Rice for Africa and South Asia (PVS on Rice varieties tolerant to Fe Toxicity) E. Annan-Afful
It’s an on-going project Funded by AfricaRice (formerly WARDA) Collaborating Institutions CSIR-Soil Research Institute MoFA
Introduction STRESS- Fe Toxicity What is Fe toxicity? Fe toxicity is a widespread nutrient disorder that affects lowland rice growing areas, especially, in the humid tropical regions of Africa. Causes of Fe toxicity It is brought about by the excessive Fe absorption by the rice plant in the form of Fe 2+ rather than Fe 3+
Symptoms of Fe toxicity
Some effects on plants/yield It aggravates disease severity Average yield loss amounts to about 50% in affected areas (range %) In most affected areas, farmers sometimes abandon their land in search of new areas or change their cropping pattern eg. Oil palm
The Project-STRASA Goal: To reduce poverty and hunger and increase food and income security of farm families and rice consumers in South Asia and Sub-Saharan Africa through the development and dissemination of rice varieties tolerant to abiotic stresses. Objectives Develop and disseminate stress tolerant germplasm for Fe toxicity Promote seed exchange and varietal release through INGER and other mechanisms Up-scaling seed production and delivery of improved technologies
What has been done Yr 1: Seed garden establishment at the 3 selected hotspots (Adansi-Atwereboana in the Adansi North District, Agyareago in the Asante-Akim District and Assin Akonfudi, Assin North District) Consisted of 80 lines each at the 3 sites PVS was done and 10 out of the 80 were selected Yr 2: Seeds of the 10 lines selected were multiplied in the dry season for Mother and Baby trial in 2011 Yr 3: Evaluation of the 10 lines in 2011
Activities carried out in 2011 Establishment of trials at the three sites (Assin- Akonfudi, Adansi-Atwereboana, Nobewam) 12 lines, including 2 local varieties were evaluated at the 3 sites Farmers were invited to the field to make their selection
Experimental field at Assin Akonfudi
Experimental field at Atwereboana
PVS at Adansi Atwereboana
STRASA Coordinators visit Ghana
STRASA and AGRA coordinators visit STRASA experimental site at Nobewam
STRASA Coordinators attend funeral at Atwereboana
PVS results at Assin Akonfudi (Best lines selected in order of preference 1 WAT IR WAB1 3 WAT 1278-B Bouake WAT WAS 161-B IR WAB1 8 BALADJAN 9 WAS 21-B-B IR B-WAB1
PVS results at Atwereboana(Best lines selected in order of preference 1 WAT IR WAB1 3 Bouake WAT WAS 161-B WAT 1278-B IR B-WAB1 8 IR WAB1 9 BALADJAN 10 WAS 21-B-B-20-4
Results (Average for the 2 sites) LinesTillers/hill Plt ht /cm Pan. No/m2 % filled spikelets 1000 Grain wt/ gPlot yield g/m2 Bouake IR WAB WAT WAS 21-B-B WAT IR WAB BALADJAN IR B- WAB WAT 1278-B WAS 161-B Jasmine Amankwatia
Samples of the harvested crops will be sent to AfricaRice for quality analysis Varieties selected will be nominated for release in the subsequent years
Challenges Inadequate funding Untimely release of funds
After a hard day’s work
Installation of Facility for Supplementary Irrigation at CSIR-Crops Research Institute for Improved Crop Technology Development in Ghana
Drip Irrigation system is completed and ready for use
Supply and Installation of Sprinkler Irrigation system is on-going
Thank you