CACTIBOTANY AND CULTIVATION
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Cacti / Cultivation procedures

Cultivation procedures

Sowing Ariocarpus using sealed bags

Cristian Neciu's experience. It should not be transferred to Pediocactus/Sclerocactus.

Cactus and succulent atlasIndex of former namesTables and diagramsCultivation proceduresRootstocks
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]

Sequence and conditions

  1. Prepare clean containers, seeds, water and new bags. Cleanliness reduces risk but does not guarantee sterility. [Neciu 2006, file p. 29, 30, 32, 33]
  2. The author's mix contains 20% leaf mould, 60% crushed mica schist, 10% brick and 10% tuff. These are the recipe proportions. The source does not clearly specify whether they are by weight or volume. [Neciu 2006, file p. 29, 30, 32, 33]
  3. The author kept seedlings enclosed for 12–18 months. The stated germination ranges are 25–35°C by day and about 15°C at night. Diffuse light and temperature control are critical. Do not expose a sealed bag to sun that heats it. [Neciu 2006, file p. 29, 30, 32, 33]
  4. After opening, the author maintained a gentler, moist regime for about half a year, then gradually introduced drying over the following half year. He reached the adult rhythm around the third year. [Neciu 2006, file p. 29, 30, 32, 33]
  5. After about 2 years, he switched to a mineral mix, adding about 10% limestone or gypsum. These ingredients have different chemistry and are not interchangeable without qualification. [Neciu 2006, file p. 29, 30, 32, 33]
  6. The recorded first flowers were at 3 years for agavioides, 4 for kotschoubeyanus, and 5 for fissuratus and scaphirostrus. Retusus and trigonus had not yet flowered at 5 years and 5–7 cm in diameter. [Neciu 2006, file p. 29, 30, 32, 33]

Scope of the method

The temperatures given apply to successive stages in Cristian Neciu's system.

Infection or overheating requires changes to the conditions of the enclosed sowing.

Ingredient proportions follow the author. Mica schist is a metamorphic rock.

Sources for the description

[Neciu 2006, file p. 29, 30, 32, 33]

Plants described in these materials

Ariocarpus agavioidesAriocarpus kotschoubeyanusAriocarpus fissuratusAriocarpus retususAriocarpus trigonusAriocarpus scaphirostrusAriocarpus bravoanusAriocarpus bravoanus subsp. hintonii