Emilia Nacheva, Galina Pevicharova, Stoika Masheva, Vinelina Yankova, Tzvetanka Dintcheva, Katya Vasileva


Studies on the agrobiological response of six potato initial forms and four breeding lines have been conducted at two different systems for organic production including: (1) growing plants in natural soil fertility without using plant-protection products and (2) growing plants by fertilization with organic products authorized for use in organic production and use of biopesticides for plant protection. The control variant of the experiment is conventional production – growing through the use of herbicides, mineral fertilization and plant protection with chemical fungicides and insecticides. The experiments were conducted in the experimental plots of the Maritsa Vegetable Crops Research Institute-Plovdiv, during the period 2014-2017.

Significant differences in the characters of the morphological and economic description are registered in the organic production of initial material and potato breeding lines included in the study. They are characterized by a lower number of tubers, a lower average weight of tubers, a lower total and standard yield than that obtained from conventional production. Losses in yield for different genotypes range from 13 to 34%.

The results of the conducted study identify a suitable initial material for potato organic breeding - variety Pavelsko, D1811 and E1504, characterized by relatively high productivity under conditions of organic production, very good morphological qualities and specific insusceptibility to late blight (Phythophtora infestans), early blight (Alternaria solani), bacterial leaf spot, viral diseases and Colorado beetle (Leptinotarsa decemlineata).

Breeding lines (E766, E1026, E1100 and E1811) have been created for organic potato production. Breeding lines E1026 and E1811 combining relatively high productivity level (over 2000 kg.da-1), very good organoleptic qualities and specific insusceptibility to late blight (Phythophtora infestans), early blight (Alternaria solani), bacterial leaf spot, viral diseases and Colorado beetle (Leptinotarsa decemlineata), are described with complex value in organic potato production.


potato, organic production, initial material, breeding lines, yield, insusceptibility to diseases and pests.

Full Text:



Agrostatistika, MZHG (http://www.mzh.government.bg /MZH/bg/ ShortLinks /SelskaPolitika/Agrostatistic/.

Grebenicharski, S., 2015. Proizvodstvo na kartofi v Balgariya. Analiz na pazara i perspektivite. InteliAgro, Fondatsiya „Amerika za Balgariya”, 22 str.

Lakin G., 1990. Biometriya. Vaysshaya shkola, Moskva, 365.

Anderson, M. M., X. Landes, W. Xiang, et al. 2015. Feasibility of new breeding techniques for organic farming. Trends in Plant Sciences 20(7): 426–34.

Eurostat (http://ec.europa.eu/eurostat) The EU potato sector - statistics on production, prices and trade, 2017.

Finckh M., E. Schulte-Geldermann, C. Bruns, 2006. Challenges to Organic Potato Farming: Disease and Nutrient Management. J. Pot. Research, 49, (1), 27-42.

Finckh M., Tamm L., Bruns C., 2015. Organic potato disease management. In: Finckh M., van Bruggen A., Tamm L. (eds). Plant diseases and their management in organic agriculture. APS Press, St Paul, 239–257.

Hiiesaar K., E. Švilponis, L. Metspalu, K. Jõgar, M. Mänd, A. Luik and R.Karise, 2009. Influence of Neem-Azal T/S on feeding activity of Colorado Potato Beetles (Leptinotarsa decemlineata Say). Agronomy Research 7 (Special issue I), 251–256.

Lammerts van Bueren, M. E. Tiemens-Hulscher, P. Struik (2008). Cisgenesis does not solve the late blight problem of organic potato production: Alternative breeding strategies. J. Potato Research, v. 51, 89-99.

Londhe S., 2016. Sustainable potato production and the impact of climate change. IGI Global, 323 p.

Nacheva E., S. Masheva, V. Yankova, 2015. Agrobiological response of early potato breeding lines and varieties in biological production, 2015. Bulgarian Journal of Agricultural Science, 21(№ 3), 618-623.

Nuijten E., M. Messmer, E. van Bueren, 2017. Concepts and Strategies of Organic Plant Breeding in Light of Novel Breeding Techniques. Sustainability 2017, 9, 18.

Passos, S., J. Kawakami, N. Nazareno, K. Santos, C. Tamanini Junior, 2017. Yield of organic potato cultivars in the subtropical region of Brazil. Hortic. Bras., Out 2017, vol.35, no.4, 628-633.

Saucke H, T. Döring, 2004. Potato virus Y reduction by straw mulch in organic potatoes. Annals of Applied Biology 144, 347–55.

Todorova V., 2013. Evaluation of some quality characters of pepper organic seeds. Mezhdunarodnoy nauchno-prakticheskoy konferentsii «Nauchnoe obespechenie kartofelevodstva, ovoshtevodstva i bahchevodstva: dostizheniya i perspektivay» 11-12 dekabrya 2013 goda Kazahstan, str. 516-519. / in English /

Virmond E., J. Kawakami, J. Souza-Dias, 2017. Seed-potato production through sprouts and field multiplication and cultivar performance in organic system. Horticultura Brasileira 35: 335-342.

Willer, H., J. Lernoud, 2017. The World of Organic Agriculture. Statistics and Emerging Trends 2017. IFOAM, Bonn, & FiBL, Frick, 340.


  • There are currently no refbacks.

New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria - contract № КП-06-НП1/5 of 17.12.2019 in the competition of Bulgarian scientific periodicals – 2019

New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria – contract № ДНП 05/52 от 22.12.2016 in the competition of Bulgarian scientific periodicals – 2016

The contents of this publication do not necessarily reflect the position or opinion of the National Science Fund of the Republic of Bulgaria. The opinions expressed are those of the author(s) only and should not be considered as representative of the National Science Fund’s official position.


National Science Fund of Bulgaria