Extreme salinity as a challenge to grow potatoes under Mars-like soil conditions: Targeting promising genotypes

David A. Ramírez, Jan Kreuze, Walter Amoros, Julio E. Valdivia-Silva, Joel Ranck, Sady Garcia, Elisa Salas, Wendy Yactayo

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

14 Citas (Scopus)

Resumen

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 substratum and transplanted in pots filled with Mars-like soil from La Joya desert in Southern Peru. The Mars-like soil was characterized by extreme salinity (an electric conductivity of 19.3 and 52.6 dS m-1 under 1 : 1 and saturation extract of the soil solution, respectively) and plants grown in it were under sub-optimum physiological status indicated by average maximum stomatal conductance <50 mmol H2Om-2 s-1 even after irrigation. 40% of the genotypes survived and yielded (0.3-5.2 g tuber plant-1) where CIP.397099.4, CIP.396311.1 and CIP.390478.9 were targeted as promising materials with 9.3, 8.9 and 5.8% of fresh tuber yield in relation to the control conditions. A combination of appropriate genotypes and soil management will be crucial to withstand extreme salinity, a problem also important in agriculture on Earth that requires more detailed follow-up studies.

Idioma originalInglés
Páginas (desde-hasta)18-24
Número de páginas7
PublicaciónInternational Journal of Astrobiology
Volumen18
N.º1
DOI
EstadoPublicada - feb. 2019

Huella

Profundice en los temas de investigación de 'Extreme salinity as a challenge to grow potatoes under Mars-like soil conditions: Targeting promising genotypes'. En conjunto forman una huella única.

Citar esto