scholarly journals Accelerating Seed Potato Production By Using Rapid Multiplication Systems in Ethiopia

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Lemma Tessema Gebrehanna ◽  
Abebe Chindi ◽  
Gebremedhin Wgiorgis ◽  
Atsede Solomon ◽  
Egata Shunka ◽  
...  

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. Therefore, the objective of this paper is to review the accelerating role of rapid seed potato multiplication technologies for potato seed production in Ethiopia. A low adoption of recommended seed potato technologies in the country could be due to a lack of alternative seed potato production methods compatible with farmers’ economic and agro-ecological conditions. Since 2010, Holetta Agricultural Research Centre in collaboration with International Potato Center together are applying different seed potato production hastening schemes to produce early generation seed. These seed multiplication schemes include, tissue culture, aeroponics, sand hydroponics and other rapid multiplication methods in screen house pots. These seed potato multiplication schemes brought a dynamic change for the last five years by accelerating the supply efficiency by 7.6%  with enhancing the number from 43,773 mini-tubers to 332,485 mini-tubers. Moreover, these new seed multiplication schemes enhanced the capacity of clean seed production of the country by producing 216,717 mini-tubers of high quality seed from aeroponics and sand hydroponics. The farmers could also access early generation clean seed potato through their nearby cooperatives with affordable price and with lowtransportation cost. Thus, for developing countries like Ethiopia where formal seed system is at infant stages and early generation seed is mostly produced by research institutions, the use of various rapid multiplication techniques could be one option to produce clean seed potato.

1970 ◽  
Vol 34 (3) ◽  
pp. 443-448
Author(s):  
AA Mahmud ◽  
Sajeda Akhter ◽  
MJ Hossain ◽  
MKR Bhuiyan ◽  
MA Hoque

The yield of seed size tubers was assessed in five standard potato cultivars (Cardinal, Multa, Ailsa, Heera, and Dheera) in relation to dates of dehaulming (65, 70, and 80 days after planting) in a Seed Potato Production Farm, Debijong, Panchagarh during 1996-97 and 1997-98. Dehaulming at 70 days gave maximum seed size tubers (19.75 t/ha ≈ 76%) but significantly identical to 75 days (19.56 t/ha ≈70%) and 80 days (18.69 t/ha ≈ 63%). Considering all the parameters studied, the performance of Heera proved to be best among the cultivars grown. Among the cultivars, the maximum seed tuber yield was recorded from Cardinal at 80 DAP followed by Heera and Cardinal at 70 DAP, Dheera and Ailsa at 75 DAP. In general, most of the cultivars gave the maximum seed tuber yield when the crop was dehaulmed at 70 and 80 DAP and the lowest from 65 DAP. Key Words: Dehaulming, potato, seed production. DOI: 10.3329/bjar.v34i3.3970 Bangladesh J. Agril. Res. 34(3) : 443-448, September 2009


2018 ◽  
Vol 10 (3(J)) ◽  
pp. 122-140
Author(s):  
Ambrose Rwaheru Aheisibwe ◽  
Razack B. Lokina ◽  
Aloyce S. Hepelwa

This study established the level of technical efficiency and its determinants among the informal and formal seed potato producers in the southwestern highlands agro - ecological zone of Uganda. A multi- stage sampling procedure was employed to select 636 households (499 informal seed producers and 137 formal seed producers) from which data was collected for two seasons using a semi - structured questionnaire. Data was analyzed using the stochastic frontier approach with a one - step approach. Maximum likelihood estimates for the efficiency parameters showed that both informal and formal seed potato producers were not fully efficient. The mean technical efficiency for informal and formal seed potato producers was 8 1 .4 and 80.4 percent respectively. In terms of yield loss, informal and formal seed potato producers respectively lost an average of 981 and 1,208 kg/acre of seed potato tubers due to inefficiency factors . Specifically, off- farm income source, scale of production, seasonal variation, access to extension services and seed producer being male positively influenced informal seed producers’ technical efficiency while producers’ level of education and seed potato variety diversity negatively influenced their efficiency. For formal seed producers, technical efficiency was influenced positively by producers’ education and negatively by household size. The study suggests that there is an opportunity to improve technical efficiency of informal and formal seed producers by 19 and 20 percent respectively. Therefore, this calls for increased investment in developing and promoting high yielding varieties, provision of extension services, input intensification and addressing gender issues in seed potato production in the context of limited arable land .


Nature ◽  
1944 ◽  
Vol 154 (3916) ◽  
pp. 644-645 ◽  
Author(s):  
J. E. VAN DER PLANK

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Etiang Joseph ◽  
Rose Mwesige ◽  
Sarah Kyarisiima ◽  
Ambrose Aheisibwe ◽  
Kwikiriza Gerald ◽  
...  

Author(s):  
N.V. Chevychelova ◽  
E.I. Sedykh ◽  
S.V. Zharkova ◽  
V.I. Leunov

Представлены результаты исследований производства семенного картофеля в условиях Алтайского края. Дана оценка отечественных сортов картофеля репродукции элита по производственным показателям и по фитосанитарному состоянию клубней к моменту их посадки. По каждому заболеванию, зафиксированному в Алтайском крае, выделены наиболее устойчивые сорта.The research findings on seed potato production in the Altai Region are discussed. The domestic potato varieties of elite reproduction are evaluated according to their production indices and phytosanitary condition of tubers at planting time. The most disease resistant varieties have been identified for each disease recorded in the Altai Region.


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