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This study aims to estimate the base temperature and thermal requirements for two biquinho pepper cultivars during key growth phases.

Base temperature and duration of the phenological phases of biquinho pepper ( Capsicum chinense Jacq.)

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Randomized trial estimates base temperature and thermal requirements for biquinho pepper cultivars, indicating optimal planting times.

This study aims to estimate the base temperature and thermal requirements for two biquinho pepper cultivars during key growth phases.
Field experiment with two cultivars (BRS Moema and Airetama Biquinho) across four sowing seasons.
Measured duration of the crop cycle and accumulated thermal time for five phenological phases.
Analyzed the impact of air temperature on crop phase durations.
Base temperature estimated between 14.8 to 20.2 °C depending on phenological phase.
Thermal requirements varied across developmental stages but remained consistent between cultivars.
Duration of all phenological phases was similar for both cultivars.

Valera et al. (2026) studied this question.

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