In vitro seed germination and seedling performance of Hibiscus coddii subsp. barnardii

Hibiscus coddii subsp. barnardii is an endemic South African plant species with ornamental potential. The limited plant availability in nature and restrictions on the collection of living plant material (cuttings) for cultivation purposes, necessitated the development of a protocol for in vitro seed...

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Main Authors: Helena Jacoba Du Plessis, Roumiana Vassileva Nikolova, Riana Kleynhans, Bronwyn Anne Egan
Format: Article
Language:English
Published: Sociedade Brasileira de Floricultura e Plantas Ornamentais 2020-09-01
Series:Ornamental Horticulture
Subjects:
Online Access:https://ornamentalhorticulture.emnuvens.com.br/rbho/article/view/2191
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author Helena Jacoba Du Plessis
Roumiana Vassileva Nikolova
Riana Kleynhans
Bronwyn Anne Egan
author_facet Helena Jacoba Du Plessis
Roumiana Vassileva Nikolova
Riana Kleynhans
Bronwyn Anne Egan
author_sort Helena Jacoba Du Plessis
collection DOAJ
description Hibiscus coddii subsp. barnardii is an endemic South African plant species with ornamental potential. The limited plant availability in nature and restrictions on the collection of living plant material (cuttings) for cultivation purposes, necessitated the development of a protocol for in vitro seed propagation to ensure all year round ex vitro establishment of plants. The effect of culture medium on seed germination and seedling performance was, therefore, studied. Various types of sterile seed cultures, namely moist filter paper bridges, five different strengths (¼, ½, ¾, full, 1¼) of PGR-free Murashige and Skoog medium (MS) and solid Gelrite® medium (control) were investigated. High germination percentages (85–98%) were found in all three seed cultures, although seeds germinated on filter paper, Gelrite® and lower strengths (¼, ½, ¾) of MS medium had shorter mean germination times (1.6–2.8 days) than those germinated on full and 1¼ strengths (3.5–4 days) of MS medium. Furthermore, the growth performance of seedlings varied with the strength of MS medium and was best supported on full strength MS medium, whereas ¼ and ½ strength MS media and Gelrite® cultures were detrimental for seedling growth.
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spelling doaj.art-5b2c2cf43998402984ace84075d18bc92023-06-22T20:34:33ZengSociedade Brasileira de Floricultura e Plantas OrnamentaisOrnamental Horticulture2447-536X2020-09-0126410.1590/2447-536X.v26i4.21912141In vitro seed germination and seedling performance of Hibiscus coddii subsp. barnardiiHelena Jacoba Du Plessis0Roumiana Vassileva Nikolova1Riana Kleynhans2Bronwyn Anne Egan3University of LimpopoUniversity of LimpopoTshwane University of TechnologyUniversity of LimpopoHibiscus coddii subsp. barnardii is an endemic South African plant species with ornamental potential. The limited plant availability in nature and restrictions on the collection of living plant material (cuttings) for cultivation purposes, necessitated the development of a protocol for in vitro seed propagation to ensure all year round ex vitro establishment of plants. The effect of culture medium on seed germination and seedling performance was, therefore, studied. Various types of sterile seed cultures, namely moist filter paper bridges, five different strengths (¼, ½, ¾, full, 1¼) of PGR-free Murashige and Skoog medium (MS) and solid Gelrite® medium (control) were investigated. High germination percentages (85–98%) were found in all three seed cultures, although seeds germinated on filter paper, Gelrite® and lower strengths (¼, ½, ¾) of MS medium had shorter mean germination times (1.6–2.8 days) than those germinated on full and 1¼ strengths (3.5–4 days) of MS medium. Furthermore, the growth performance of seedlings varied with the strength of MS medium and was best supported on full strength MS medium, whereas ¼ and ½ strength MS media and Gelrite® cultures were detrimental for seedling growth. https://ornamentalhorticulture.emnuvens.com.br/rbho/article/view/2191Hibiscus coddii subsp. barnardiiIn vitro seed cultureFilter paper bridgesGelrite® mediumMurashige and Skoog mediumIn vitro grown seedlings
spellingShingle Helena Jacoba Du Plessis
Roumiana Vassileva Nikolova
Riana Kleynhans
Bronwyn Anne Egan
In vitro seed germination and seedling performance of Hibiscus coddii subsp. barnardii
Ornamental Horticulture
Hibiscus coddii subsp. barnardii
In vitro seed culture
Filter paper bridges
Gelrite® medium
Murashige and Skoog medium
In vitro grown seedlings
title In vitro seed germination and seedling performance of Hibiscus coddii subsp. barnardii
title_full In vitro seed germination and seedling performance of Hibiscus coddii subsp. barnardii
title_fullStr In vitro seed germination and seedling performance of Hibiscus coddii subsp. barnardii
title_full_unstemmed In vitro seed germination and seedling performance of Hibiscus coddii subsp. barnardii
title_short In vitro seed germination and seedling performance of Hibiscus coddii subsp. barnardii
title_sort in vitro seed germination and seedling performance of hibiscus coddii subsp barnardii
topic Hibiscus coddii subsp. barnardii
In vitro seed culture
Filter paper bridges
Gelrite® medium
Murashige and Skoog medium
In vitro grown seedlings
url https://ornamentalhorticulture.emnuvens.com.br/rbho/article/view/2191
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AT roumianavassilevanikolova invitroseedgerminationandseedlingperformanceofhibiscuscoddiisubspbarnardii
AT rianakleynhans invitroseedgerminationandseedlingperformanceofhibiscuscoddiisubspbarnardii
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