Seed viability of five wild Saudi Arabian species by germination and X-ray tests
| Autor: | B.S. Al-Ammari, B.A. Al-Hammad |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Wild species biology Acacia biology.organism_classification 010603 evolutionary biology 01 natural sciences Horticulture lcsh:Biology (General) Germination Abrus precatorius Arthrocnemum macrostachyum Botany Acacia ehrenbergiana Dormancy Original Article General Agricultural and Biological Sciences Scarification lcsh:QH301-705.5 010606 plant biology & botany |
| Zdroj: | Saudi Journal of Biological Sciences, Vol 24, Iss 6, Pp 1424-1429 (2017) |
| Popis: | Our objective was to evaluate the usefulness of the germination vs. the X-ray test in determining the initial viability of seeds of five wild species (Moringa peregrina, Abrus precatorius, Arthrocnemum macrostachyum, Acacia ehrenbergiana and Acacia tortilis) from Saudi Arabia. Usually several days were required to determine the viability of all five species via germination tests. However, X-ray test will give immediate results on filled/viable seeds. Seeds of all species, except Acacia ehrenbergiana and Acacia tortilis showed high viability in both germination (96–72% at 25/15 °C, 94–70% at 35/25 °C) and X-ray (100–80%) test. Furthermore, there was a general agreement between the germination (19%, 14% at 25/15 °C and 17% and 12% at 35/25 °C) and X-ray (8%, 4%) tests in which seed viability of Acacia ehrenbergiana and Acacia tortilis was very low due to insect damaged embryo as shown in X-ray analysis. Seeds of Abruspreca torius have physical dormancy, which was broken by scarification in concentrated sulfuric acid (10 min), and they exhibited high viability in both the germination (83% at 25/15 °C and 81% at 35/25 °C) and X-ray (96%) tests. Most of the nongerminated seeds of the five species except those of Acacia ehrenbergiana and Acacia tortilis, were alive as judged by the tetrazolium test (TZ). Thus, for the five species examined, the X-ray test was proved to be a good and rapid predictor of seed viability. Keywords: Seed viability, Seed germination, Germination test, X-ray test, Dormancy, Wild Saudi Arabian plant species |
| Databáze: | OpenAIRE |
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