Seed germination of five subalpine acaena species

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Abstract

The effects of temperature, light, and water availability on seed germination are examined in Acaena caesiiglauca, A. fissistipula, A. glabra, A. inermis, and A. profundeincisa. Germination requirements are quite specific with maximum germination usually below 60%. Seed predominantly germinates over a narrow temperature range (approximately 14–21°C) and is promoted by light and high water availability. Seed of A. inermis only germinated well in the presence of 2% potassium nitrate. Seed germination declined during dry storage at room temperature, with virtually no germination 10 months after harvest.
Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalNEW ZEALAND JOURNAL OF BOTANY
Volume25
Issue number1
DOIs
Publication statusPublished - Jan 1987
Externally publishedYes

Keywords

  • Acaena
  • germination requirements
  • seed ecology
  • subalpine

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