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Quality management along the seed potato value chain

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Potato yields are affected by several factors being quality seed is a very important factor. The average yield increase from the use of good quality seed is 30 to 50 percent compared to farmers’ seeds.

RELATED DOCUMENTS
Accelerating Seed Potato Production By Using Rapid Multiplication Systems in Ethiopia
January 17 2018 by INKOA

Ethiopia is one of the major potato producing countries of the Sub-Saharan Africa region where potato is the fastest expanding food crop. The natural environment in Ethiopia is very suitable for year round production of potato using rain-fed and irrigated systems. However, the actual potato yield in the country ranges between 8-10 t/ha, which is slightly below the average for Africa. Shortage of good quality seed has been recognized as the single most important factor limiting potato production in the developing countries including Ethiopia. 

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Effectiveness of Protection of Early Potato Cultivars Against Phytophthora infestans Mont De Bary depending on the Protection Strategy
December 18 2017 by INKOA

The research was based on the field experiments conducted in 2014–2016 in the Variety Assessment Experimental Station, Central Center for Cultivar Assessment in Uhnin on the fawn soil, with a slightly acidic reaction, on rye good complex. The experiments were set up as random blocks in a dependent arrangement in three replications. The strategy of potato protection against late blight was the factor of a first line (from three to nine fungicide applications and a control object – without protection). Potato cultivars (5) with different level of resistance on Phytophthora infestans were the second experimental factor. 

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Evaluation and selection of true potato (Solanum tuberosum) seed families in North-Central plains of India
October 17 2017 by INKOA

Segregating progenies from 19 crosses of potato (Solanum tuberosumL.) developed at the International Potato Center (CIP), Peru were tested during 2008-2013 for adaptation and yield attributes in the sub-tropical plains of India i.e. Modipuram, Uttar Pradesh. The progenitors of the crosses showed early foliage maturity, tolerance to biotic stresses and processing attributes. In initial clonal generations, selection was based on desirable tuber attributes and tuber yield components. Clones showing viral symptoms, producing long stolons, irregular tuber shape, russetting, cracking or deep eyes were eliminated. From the initial population of 17,300 true seeds, 13 advanced clones of five crosses were subjected to evaluation in replicated trials and nine better performing clones were selected. Critical evaluation of these nine clones resulted in the identification of five promising clones (305069.701, 305111.701, 305138.702, 397186.703 and 397186.704) with high tuber yield (43 to 50 t/ha) and desirable tuber attributes. These advanced clones hold promise of becoming new potato cultivars and may be used in breeding programmes aiming at high productivity in the region for improving the livelihood of farmers.

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Effect of Seed Potato Tuber Storage Methods on Occurrence of Potato Diseases
September 1 2017 by INKOA

Many smallholder farmers recycle farm saved seed potato and store the seed tubers under sub-optimal conditions. This leads to accumulation and spread of tuber-borne diseases in storage and in the field. This study was carried out with the objective of determining effect of seed potato storage methods on occurrence of diseases and tuber yield. Storage methods evaluated were diffused light, heap, jute bag, dark storage and treatment of seed tubers with gibberellic acid (GA3).

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Quality status of farm saved seed potato and effect of methods of storage on seed quality and crop performance
August 24 2017 by INKOA

The main challenge facing potato production in Kenya is use of poor quality seed tubers that are degenerated and infected with seed borne pathogens. The objective of this study was to determine the quality status of farm saved seed potato and the effect of methods of storage on seed quality and crop performance. A survey involving seventy nine farmers was conducted in four agro-ecological zones in Kikuyu, Kiambu County and North Kinangop, Nyandarua County to determine seed potato production and handling practices. Information on potato varieties grown, source of seed potato tubers, seed storage methods, duration of storage, seed renewal period, pests and diseases was collected. Farm saved seed potato was evaluated for quality parameters like seed health, physical and physiological qualities. Freshly harvested seed tubers of variety Shangi were collected from a model farmer for the storage experiment and field studies. 

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RELATED NEWS
African Union Research Grant Programme- 2018 Open Call for ProposalsMarch 1 2018

The African Union Commission, with the support of the European Union, has launched the 2018 Open Call for Proposals of the 2nd Phase of the African Union Research Grant on February 23, 2018.

This call for proposal supports Africa’s Science Technology and Innovation Strategy-2024 which addresses the aspirations identified under Agenda 2063 and Priority 3 on Human development of the EU-Africa partnership. The call supports research on: Food, Nutrition Security and Sustainable Agriculture (FNSSA) with particular attention on Agriculture and Food Systems for Nutrition.

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