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Article

Screening Potato Landraces to Cope with Climate Change in the Central Andes of Peru

by
Edith Zevallos
1,
Karina Marmolejo
1,
Fernando Alvarez
1,
Rocio Paitan
1,
Ines Viza
1,
Dante Becerra
1,
Gina Rixi
1,
Cecilia Silva-Diaz
2 and
Josue Inga
1,*
1
Departamento de Agronomía, Facultad de Ciencias Agropecuarias, Universidad Nacional Daniel Alcides Carrión (UNDAC), San Juan de Jarampa s/n, Pasco 19000, Peru
2
Agricultural Sciences and Resource Management in the Tropics and Subtropics (ARTS), University of Bonn, 53113 Bonn, Germany
*
Author to whom correspondence should be addressed.
Int. J. Plant Biol. 2023, 14(4), 1167-1179; https://doi.org/10.3390/ijpb14040085
Submission received: 30 October 2023 / Revised: 26 November 2023 / Accepted: 1 December 2023 / Published: 7 December 2023
(This article belongs to the Topic Tolerance to Drought and Salt Stress in Plants)
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Abstract

Agriculture in the Andean region is mainly small-scale and rainfed, especially in Peru where almost 80% of its population depends on agriculture-related activities. Climate change in addition to social factors threatens the food security of this region. The forecast of more frequent dry spells would especially affect potato crops, domesticated centuries ago in the Andes, where there remains a great genetic diversity. This study aimed to characterize the response to drought stress of 79 potato landraces traditionally grown in the Central Andes of Peru (Pasco region) as a first selection for future breeding evaluations. The used indices were mean productivity (MP), geometric mean productivity (GMP), stress tolerance (STI), stress susceptibility (SSI), and tolerance index (TOL), and a scoring methodology that integrates all of them into a single descriptor in a simple and fast way. The varied responses showed a wide genetic diversity within the assessed landraces, where at least nine of them own high resilience and productivity qualities, and many others are highly vulnerable to drought. It is recommended to complement these studies with physiological and molecular evaluations in stress situations, especially in those with tolerance qualities highlighted in this study, and thus promote the conservation of the biodiversity of this region.
Keywords: rainfed agriculture; drought stress; food security; tolerance; resilience; potato yield rainfed agriculture; drought stress; food security; tolerance; resilience; potato yield
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MDPI and ACS Style

Zevallos, E.; Marmolejo, K.; Alvarez, F.; Paitan, R.; Viza, I.; Becerra, D.; Rixi, G.; Silva-Diaz, C.; Inga, J. Screening Potato Landraces to Cope with Climate Change in the Central Andes of Peru. Int. J. Plant Biol. 2023, 14, 1167-1179. https://doi.org/10.3390/ijpb14040085

AMA Style

Zevallos E, Marmolejo K, Alvarez F, Paitan R, Viza I, Becerra D, Rixi G, Silva-Diaz C, Inga J. Screening Potato Landraces to Cope with Climate Change in the Central Andes of Peru. International Journal of Plant Biology. 2023; 14(4):1167-1179. https://doi.org/10.3390/ijpb14040085

Chicago/Turabian Style

Zevallos, Edith, Karina Marmolejo, Fernando Alvarez, Rocio Paitan, Ines Viza, Dante Becerra, Gina Rixi, Cecilia Silva-Diaz, and Josue Inga. 2023. "Screening Potato Landraces to Cope with Climate Change in the Central Andes of Peru" International Journal of Plant Biology 14, no. 4: 1167-1179. https://doi.org/10.3390/ijpb14040085

APA Style

Zevallos, E., Marmolejo, K., Alvarez, F., Paitan, R., Viza, I., Becerra, D., Rixi, G., Silva-Diaz, C., & Inga, J. (2023). Screening Potato Landraces to Cope with Climate Change in the Central Andes of Peru. International Journal of Plant Biology, 14(4), 1167-1179. https://doi.org/10.3390/ijpb14040085

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