The original variation in the source population as well as the selection method may influence the genetic variation in further cycles of genetic improvement. Therefore, the objectives of this research were to determine genetic parameters (variance components and heritability) in source and interm...
Ortiz, R.
,
Golmirzaie, A.M.
,
[Genetic parameters for agronomic characteristics: 1: early and intermediate breeding populations of Open Access potato seed]
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Genetic parameters for agronomic characteristics: 1: early and intermediate breeding populations of Open Access potato seed
One of the future challenges to produce food in a Mars environment will be the optimization of resources through the potential use of the Martian substratum for growing crops as a part of bioregenerative food systems. In vitro plantlets from 65 potato genotypes were rooted in peat-pellets substra...
Ramírez, D.
,
Kreuze, J.F.
,
Amoros, W.
,
Valdivia Silva, J.E.
,
Ranck, J.
,
García, S.
,
Salas, E.
,
Yactayo, W.
,
[Extreme salinity as a challenge to grow potatoes under Mars-like soil conditions: targeting promising genotypes.]
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Extreme salinity as a challenge to grow potatoes under Mars-like soil conditions: targeting promising genotypes.
The displacement in east Africa of the US‐1 clonal lineage of Phytophthora infestans by 2_A1 clonal lineage has been very rapid. This study tested the hypothesis that dominance of 2_A1 could be due, at least in part, to the increased aggressiveness of 2_A1 over US‐1, using both a detached leaf as...
Njoroge, A.W.
,
Andersson, B.
,
Yuen, J.
,
Forbes, G.
,
[Greater aggressiveness in the 2_A1 lineage of Phytophthora infestans may partially explain its rapid displacement of the US‐1 lineage in east Africa]
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Greater aggressiveness in the 2_A1 lineage of Phytophthora infestans may partially explain its rapid displacement of the US‐1 lineage in east Africa
Considered responsible for one million deaths in Ireland and widespread famine in the European continent during the 1840s, late blight, caused by Phytophthora infestans, remains the most devastating disease of potato (Solanum tuberosum L.) with about 15%–30% annual yield loss in sub‐Saharan Afric...
Ghislain, M.
,
Byarugaba, A.A.
,
Magembe, E.
,
Njoroge, A.W.
,
Rivera, C.
,
Roman, M.L.
,
Tovar, J.C.
,
Gamboa, S.
,
Forbes, G.
,
Kreuze, J.F.
,
Barekye, A.
,
Kiggundu, A.
,
[Stacking three late blight resistance genes from wild species directly into African highland potato varieties confers complete field resistance to local blight races]
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Stacking three late blight resistance genes from wild species directly into African highland potato varieties confers complete field resistance to local blight races
Partial root-zone drying (PRD) is an irrigation technique which consists of alternating the water supply from one furrow to another, and keeping the other one dry during the weekly alternation period. Studies assessing PRD in potato have reported a 30-50% of water savings with no tuber yield redu...
Yactayo, W.
,
Ramírez, D.
,
German, T.
,
Worku, A.
,
Abeb, A.
,
Harahagazwe, V.
,
Mares, V.
,
Mendiburu, F. de
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Quiróz, R.
,
[Improving potato cultivation using siphons for partial root-zone drying irrigation: a case study in the Blue Nile river basin, Ethiopia.]
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Improving potato cultivation using siphons for partial root-zone drying irrigation: a case study in the Blue Nile river basin, Ethiopia.
Bertschinger, L.
,
Bühler, L.
,
Dupuis, B.
,
Gessler, C.
,
Forbes, G.
,
Keller, E.R.
,
Scheidegger, Urs C.
,
Struik, Paul C.
,
[Incomplete Infection of Secondarily Infected Potato Plants – an Environment Dependent Underestimated Mechanism in Plant Virology.]
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Incomplete Infection of Secondarily Infected Potato Plants – an Environment Dependent Underestimated Mechanism in Plant Virology.
An attempt was made to introduce potato (Solanum tuberosum L.) in hot arid water scarce zone of Western Rajasthan, India. Eight CIP-bred potato clones were evaluated along with two controls, viz. Kufri Pukhraj and Kufri Surya on farmer’s field at Jodhpur, Rajasthan under normal and moderate water...
Arya, S.
,
Rawal, S.
,
Luthra, S.K.
,
Sharma, N.
,
Gupta, V.K.
,
Kadian, M.S.
,
[Participatory evaluation of advanced potato (Solanum tuberosum) clones for water stress tolerance]
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Participatory evaluation of advanced potato (Solanum tuberosum) clones for water stress tolerance
Integrated pest management (IPM) versus farmers’ pest management practices were evaluated in potato (Solanum tuberosum L.) in the central coast of Peru. IPM technologies consisted of seed treatment, insect pest, and disease scouting using action thresholds for decision making to apply pesticides,...
Mujica, N.
,
Kroschel, J.
,
[Ecological, economic, and environmental assessments of integrated pest management in potato: A case study from the Canete Valley, Peru]
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Ecological, economic, and environmental assessments of integrated pest management in potato: A case study from the Canete Valley, Peru
Cryopreservation protocols have been successfully developed for hundreds of species and thousands of genotypes in laboratories around the world. In many of the protocols, the rewarming process occurs in a rewarming solution (RS) with a high concentration of sucrose (0.8–1.2 M). Warming rate and a...
Vollmer, R.
,
Villagaray, R.
,
Castro, M.
,
Anglin, Noelle L.
,
Ellis, D.
,
[Cryopreserved potato shoot tips showed genotype-specific response to sucrose concentration in rewarming solution (RS)]
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Cryopreserved potato shoot tips showed genotype-specific response to sucrose concentration in rewarming solution (RS)
The poor knowledge about the presence of diseases and pests affecting the potato crop in developing countries difficult the understanding of their distribution in agro-ecological systems and consequent effect on yield and seed quality. A combination of a monitoring and a field experiment were per...
Navarrete, I.
,
Panchi, N.
,
Andrade-Piedra, J.L.
,
[Potato crop health quality and yield losses in Ecuador]
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Potato crop health quality and yield losses in Ecuador