CACTIBOTANY AND CULTIVATION
Search the website
Tables and diagrams

From seed to seedling

GERMINATION • successive constraints on the process
  1. 01ImbibitionWater restores hydration to seed structures
  2. 02RespirationOxygen and reserves support metabolic changes in the embryo
  3. 03Growth activationTemperature and light modify the response
  4. 04Root emergenceThe embryonic root penetrates the seed coat
  5. 05Seedling establishmentLight, roots and gradual hardening sustain growth

A factor outside the tolerance range halts the process. Moisture alone cannot replace oxygen, a suitable temperature or a living embryo. [Barrios et al. 2020b] [Fleischer and Schütz 1978]

An independent physiological diagram based on the review by Barrios et al. from 2020 and archival material. It does not reproduce the earlier drawing of metabolic changes. [Barrios et al. 2020b] [Fleischer and Schütz 1978]

Read the full account