Tolerance to occasional frosts during germination in Chilean Altiplano quinoa (Chenopodium quinoa Willd.) cultivars
Ignacio Delfino Yurin, José Delatorre-Herrera, Juan Pablo Rodríguez, José Pablo Delatorre-Castillo, Isabel Sepúlveda-Soto, Cristopher Low-Pfeng · 2026
Read Tolerance to occasional frosts during germination in Chilean Altiplano quinoa (Chenopodium quinoa Willd.) cultivars by Ignacio Delfino Yurin, José Delatorre-Herrera, Juan Pablo Rodríguez, José Pablo Delatorre-Castillo, Isabel Sepúlveda-Soto, Cristopher Low-Pfeng (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12884543.txt.
Description
A single cold night can ruin quinoa sprouting, and a study by Ignacio Delfino Yurin and co-authors, published in 2025, tests when frost hurts most. The crop is spreading into harsh high country in Chile, where early frosts threaten young stands.
Two local cultivars, Roja and Amarilla, faced single frosts at zero, minus two, and minus four degrees at three sprouting stages: drinking in water, steady absorption, and root emergence. Fifty seeds per treatment were tracked for sprouting share and speed, water uptake, and stress chemistry. Frost in the first two stages cut sprouting by over seventy percent, worst at the coldest setting early on. Roots already out proved hardier. Timing, the study shows, matters as much as temperature.
Catalog record
| CREATOR | Ignacio Delfino Yurin, José Delatorre-Herrera, Juan Pablo Rodríguez, José Pablo Delatorre-Castillo, Isabel Sepúlveda-Soto, Cristopher Low-Pfeng |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 43 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |