PTE · Reading: Fill in the Blanks

Botanical Garden Science and Practice

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  • PTE Academic and PTE Core
1

Glasshouse Microclimate Engineering

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Modern conservatories rely on automated climate systems to specific ecological conditions for delicate flora. By regulating ambient humidity and solar , technicians prevent severe moisture loss in tropical epiphytes. In addition, subterranean heating pipes provide warmth directly to root systems, shielding sensitive specimens from sudden drops in outdoor temperature and promoting consistent seasonal throughout the year.

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Questions 2–5

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2

Living Collections Curation

Managing a living plant collection requires rigorous botanical curation to ensure scientific value. Every new arrival is assigned an accession number that 1 its provenance, collection date, and wild habitat coordinates. Curators maintain detailed digital records, while physical tags are 2 to individual specimens in garden beds. Without this meticulous documentation, cultivated plants lose their research utility and become purely 3 displays rather than valuable genetic 4.

  • detached
  • isolates
  • ornamental
  • affixed
  • burdens
  • assets
  • records
3

Ex Situ Hand Pollination

When rare plant species fail to reproduce naturally due to missing native insect vectors, horticulturists must intervene with artificial pollination. Staff collect viable pollen from mature anthers and 1 transfer it onto receptive stigmas using fine brushes. This controlled breeding prevents unwanted 2 with related species growing nearby. By carefully tracking parentage, botanical gardens maximise genetic diversity within small populations and 3 future reintroduction initiatives into restored wild habitats.

  • hinder
  • extinct
  • sustain
  • hybridisation
  • manually
  • accidentally
4

Specialised Substrate Formulation

Cultivating specialised flora outside their native ranges requires tailored soil mixtures that imitate wild substrates. Alpine plants, for example, require exceptional 1 to prevent root rot during wet periods, which growers achieve by incorporating crushed grit and pumice. Conversely, carnivorous bog species thrive in nutrient-deficient, acidic media that 2 moisture without compacting. Getting the mineral balance wrong can rapidly 3 nutrient uptake and cause fatal chlorosis.

  • inhibit
  • release
  • drainage
  • accelerate
  • erosion
  • retain
5

Ethnobotanical Interpretation Displays

Public botanical gardens increasingly use interpretative signage to bridge the gap between pure taxonomy and ethnobotany. Rather than listing only Latin binomials, modern displays explain how indigenous societies 1 specific plants for medicine, construction, and ritual. This contextual approach helps visitors understand that biodiversity conservation is inextricably 2 with cultural heritage. Furthermore, interactive exhibits demonstrate how historical botanical knowledge continues to 3 modern pharmaceutical discoveries.

  • replaced
  • neglected
  • linked
  • harvested
  • dismiss
  • inform

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