Abstract

ALLCCAHUAMAN-BEDRILLANA, Roly  and  OCHOA-YUPANQUI, Walter Wilfredo. Nematological and agronomic response of ten clones of Solanum tuberosum "potato" to Globodera pallida Stone. J. Selva Andina Biosph. [online]. 2019, vol.7, n.2, pp.100-108. ISSN 2308-3859.

The research was carried out with the objectives of evaluating the final population of G. pallida; To evaluate the performance, resistance, tolerance and susceptibility of ten clones of S. tuberosum and select the clones according to Cook's criteria, 10 varieties of cultivated potato resistant and tolerant to G pallida were used, obtained from the National Germplasm Bank of INIA- Ayacucho, G pallida cysts were obtained from the Nematology laboratory of the Faculty of Biological Sciences of the UNSCH, each experimental unit had 0.4 kg / pot of a substrate with 1 tuber from each clone, inoculation and seeding was done with 08 tubers / 15 g seed, sowing one tuber per pot, 4 without inoculum (n0) and 4 with inoculum (n1). The final population of G. pallida was low in clones 5 and 6; high in clones 8 and 10. Inoculated clones (n1) showed 5.56% less yield than non-inoculated (n0), clone 6 shows a greater difference in yield (18.25%), demonstrating that it is not tolerant to G pallida, the other clones are tolerant. All clones are susceptible with three "I" ranges. According to Cook's criteria, clone 6 is non-tolerant and susceptible.

Keywords : Performance; tolerance; resistance; susceptibility; Globodera pallida; Solanum tuberosum; NQP; UNSCH.

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