Desiccation studies on mahogany (Swietenia macrophylla) seeds

M. Marzalina, Normah Mohd. Noor

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Studies of desiccation effect on mahogany seeds were conducted to determine the best condition to reduce seed moisture content without affecting its viability. Four types of desiccation methods, namely, ambient temperature of 28 °C (in incubator), cold room of 21 °C (in laboratory), circulated air oven at 35 °C and silica gel (in desiccator at 25 °C) were tested on seeds with and without testa. All four desiccation treatments maintained high germination between 70-78% for seeds with testa. Ambient and cold conditioned seeds without testa resulted in 55-70% germination. Overall results showed that a gradual reduction of moisture content to the lowest safe level while maintaining high viability can be achieved using ambient and cold conditioned desiccation techniques. Oven and silica gel desiccation methods increased respiration rate and cellular leachate conductivity, especially for seeds without testa. Light microscopy showed that cells of seeds without testa desiccated using oven and silica gel had damaged cell walls and cytoplasms. These injuries did not occur in cells of seeds with testa. It was concluded that mahogany seeds with testa can be stored for a short-term period if the moisture content is reduced gradually to 2-9% using environmental condition of 21-28 °C.

Original languageEnglish
Pages (from-to)405-414
Number of pages10
JournalJournal of Tropical Forest Science
Volume13
Issue number3
Publication statusPublished - Jul 2001
Externally publishedYes

Fingerprint

Meliaceae
Swietenia macrophylla
Desiccation
desiccation
Seeds
testa
seed
seeds
Silica Gel
silica gel
ovens
moisture content
gel
silica
Germination
water content
germination
viability
Incubators
incubators (equipment)

Keywords

  • Desiccation
  • Embryo axes
  • Germination
  • Moisture content
  • Seeds

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)

Cite this

Desiccation studies on mahogany (Swietenia macrophylla) seeds. / Marzalina, M.; Mohd. Noor, Normah.

In: Journal of Tropical Forest Science, Vol. 13, No. 3, 07.2001, p. 405-414.

Research output: Contribution to journalArticle

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