2025, Vol. 7, Issue 11, Part B

Author(s): Alexander T

Abstract: The present study explores the seed biology of Garcinia gummigutta (L.) N. Robson, an economically and ecologically important tree species of the Western Ghats, Kerala. The seeds are ovoid, non-endospermic and exhibit the characteristic “Garcinia-type” pattern of hypogeal germination. Morphological observations revealed distinct variation in seed size and weight across ecosites, while anatomical analysis showed a central hypocotyl core and parenchymatous storage tissue without cotyledons. Seed viability studies indicated a strong positive relationship between moisture content and germination success, as revealed by linear regression. Viability remained above 90% at 48% moisture content but declined drastically with desiccation below 25%, confirming the recalcitrant nature of the seeds. Germination experiments demonstrated that removal of the seed coat and chemical treatment with gibberellic acid and Dithane M-45 significantly accelerated germination and enhanced seedling vigor compared to untreated controls. These results highlight the moisture sensitivity and short-term storability of G. gummigutta seeds, emphasizing the importance of immediate propagation and moisture management for maintaining viability. The findings provide valuable insights for improving nursery practices, promoting large-scale propagation and ensuring effective conservation of this high-value species in the Western Ghats.

Pages: 130-134 | Views: 57 | Downloads: 36

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