Role of Tuber Developmental Processes in Response of Potato to High Temperature and Elevated CO₂.

ABSTRACT: Potato is adapted to cool environments, and there is concern that its performance may be diminished considerably due to global warming and more frequent episodes of heat stress. Our objectives were to determine the response of potato plants to elevated CO₂ (700 μmol/mol) and high temperature (35/25 °C) at tuber initiation and tuber bulking, and to elucidate effects on sink developmental processes. Potato plants were grown in controlled environments with treatments at: Tuber initiation (TI), during the first two weeks after initiating short-day photoperiods, and Tuber bulking (TB). At TI, and 25 °C, elevated CO₂ increased tuber growth rate, while leaves and stems were not affected. Whole-plant dry matter accumulation rate, was inhibited by high temperature about twice

SUBMITTER: Chen CT 

PROVIDER: S-EPMC8146319 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature