Seed Morphometry of Native Indonesian Orchids in the Genus Dendrobium

Sucipto Hariyanto, .- and Intan Ayu Pratiwi, .- and Edy Setiti Wida Utami, .- (2020) Seed Morphometry of Native Indonesian Orchids in the Genus Dendrobium. Scientifica, 2020 (398636). pp. 1-14. ISSN 2090908X

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Official URL: https://www.hindawi.com/journals/scientifica/2020/...

Abstract

In this study, seeds of 10 species of epiphytic orchids were examined using light and scanning electron microscope. Quantitative and qualitative characters were analyzed. All the presently investigated seeds showed are transparent with visible embryo and remarkable embryo color variations (such as pale yellow, light yellow, shiny yellow to yellow, orange, and white). he species showed two groups in seed shape (fusiform and iliform), prolate and oval-shaped embryo, positioned at the center of the long axisand near apical pole. Embryo in prolate shaped and near apical pole position was only in D. antennatum. Based on our investigation, there are variations in seed and embryo volume as well as percentage air space in diferent taxa of orchids. he highest air space percentages were found in D. leporinum. According to the ornamentation of testa cells, 3 types of seeds were discovered in this genus. Additionally, the clear variation in the testa ornamentation pattern includes the species of D. leporinum, where the testa cells were in the medial regular rectangles, but in the apical and basal pole they are polygonal and irregularly oriented; the testa cells of D. antennatum are polygonal and irregularly oriented and those of D. purpureum are longitudinally oriented with regular rectangles.

Item Type: Article
Subjects: Q Science > Q Science (General) > Q1-295 General
Q Science > QH Natural history > QH301 Biology
Q Science > QH Natural history > QH540-549.5 Ecology
Divisions: 08. Fakultas Sains dan Teknologi > Biologi
Creators:
CreatorsNIM
Sucipto Hariyanto, .-NIDN0009025604
Intan Ayu Pratiwi, .-UNSPECIFIED
Edy Setiti Wida Utami, .-UNSPECIFIED
Depositing User: Mr Vega Andi Budiman
Date Deposited: 28 Aug 2020 12:11
Last Modified: 25 Oct 2023 09:03
URI: http://repository.unair.ac.id/id/eprint/97842
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