Maturation, temperature and breaking dormancy of Comanthera seeds
Given the importance of “everlasting” plants for their ornamental value and vulnerability to extractive practices, studies to ensure the propagation of the species are indispensable. The aim of this study was to assess whether there is an association between seed coat color and the quality of everla...
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Sociedade Brasileira de Floricultura e Plantas Ornamentais
2016-09-01
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Online Access: | https://ornamentalhorticulture.emnuvens.com.br/rbho/article/view/875 |
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doaj-7b8b4643312e4b05a659676fd521ef1f2020-11-24T22:46:08ZengSociedade Brasileira de Floricultura e Plantas OrnamentaisOrnamental Horticulture 2447-536X2016-09-0122218619510.14295/oh.v22i2.875550Maturation, temperature and breaking dormancy of Comanthera seedsAndréa Santos Oliveira0Maria Laene Moreira Carvalho1Cláudio das Neves Vieira Bárbara2Tanismare Tatiana Almeida3Marcela Carlota Nery4Universidade do Estado de Mato GrossoUniversidade Federal de LavrasUniversidade Federal de LavrasUniversidade do Estado de Mato GrossoUniversidade Federal do Vale do Jequitinhonha e MucuriGiven the importance of “everlasting” plants for their ornamental value and vulnerability to extractive practices, studies to ensure the propagation of the species are indispensable. The aim of this study was to assess whether there is an association between seed coat color and the quality of everlasting seeds, in the presence or absence of dormancy. Four species (Comanthera elegans, C. nitida, C. bisculata, and Comanthera sp.) were separated with respect to seed coat color and underwent germination first count, germination, and germination speed index testing in a substrate moistened with water or 0.1% fluridone solution, in alternating temperatures of 10/25°C and 15/25°C. A completely randomized experimental design was used in a 4 x 2 x 2 factorial arrangement [seed coat color (green, beige, red, brown) × temperature (10/25°C and 15/25°C) × dormancy breaking (with or without)]. In general, the alternating 15/25°C temperature is favorable for germination of everlasting plants. The use of fluridone is favorable to germination and seed vigor, especially when using the alternating temperature of 10/25°C. The effect of seed coat color varies among species; higher germination and vigor values are seen in green seeds for Comanthera sp. and lower values in C. bisculata. For C. nitida and C. elegans, seed coat color does not influence seed quality. Direct relationships between fluoridone efficiency in breaking dormancy of seeds of different species of everlasting plants and classification in different colors are not observed.https://ornamentalhorticulture.emnuvens.com.br/rbho/article/view/875Fluridone, Cor do Tegumento, Alternância de Temperatura, Comanthera. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Andréa Santos Oliveira Maria Laene Moreira Carvalho Cláudio das Neves Vieira Bárbara Tanismare Tatiana Almeida Marcela Carlota Nery |
spellingShingle |
Andréa Santos Oliveira Maria Laene Moreira Carvalho Cláudio das Neves Vieira Bárbara Tanismare Tatiana Almeida Marcela Carlota Nery Maturation, temperature and breaking dormancy of Comanthera seeds Ornamental Horticulture Fluridone, Cor do Tegumento, Alternância de Temperatura, Comanthera. |
author_facet |
Andréa Santos Oliveira Maria Laene Moreira Carvalho Cláudio das Neves Vieira Bárbara Tanismare Tatiana Almeida Marcela Carlota Nery |
author_sort |
Andréa Santos Oliveira |
title |
Maturation, temperature and breaking dormancy of Comanthera seeds |
title_short |
Maturation, temperature and breaking dormancy of Comanthera seeds |
title_full |
Maturation, temperature and breaking dormancy of Comanthera seeds |
title_fullStr |
Maturation, temperature and breaking dormancy of Comanthera seeds |
title_full_unstemmed |
Maturation, temperature and breaking dormancy of Comanthera seeds |
title_sort |
maturation, temperature and breaking dormancy of comanthera seeds |
publisher |
Sociedade Brasileira de Floricultura e Plantas Ornamentais |
series |
Ornamental Horticulture |
issn |
2447-536X |
publishDate |
2016-09-01 |
description |
Given the importance of “everlasting” plants for their ornamental value and vulnerability to extractive practices, studies to ensure the propagation of the species are indispensable. The aim of this study was to assess whether there is an association between seed coat color and the quality of everlasting seeds, in the presence or absence of dormancy. Four species (Comanthera elegans, C. nitida, C. bisculata, and Comanthera sp.) were separated with respect to seed coat color and underwent germination first count, germination, and germination speed index testing in a substrate moistened with water or 0.1% fluridone solution, in alternating temperatures of 10/25°C and 15/25°C. A completely randomized experimental design was used in a 4 x 2 x 2 factorial arrangement [seed coat color (green, beige, red, brown) × temperature (10/25°C and 15/25°C) × dormancy breaking (with or without)]. In general, the alternating 15/25°C temperature is favorable for germination of everlasting plants. The use of fluridone is favorable to germination and seed vigor, especially when using the alternating temperature of 10/25°C. The effect of seed coat color varies among species; higher germination and vigor values are seen in green seeds for Comanthera sp. and lower values in C. bisculata. For C. nitida and C. elegans, seed coat color does not influence seed quality. Direct relationships between fluoridone efficiency in breaking dormancy of seeds of different species of everlasting plants and classification in different colors are not observed. |
topic |
Fluridone, Cor do Tegumento, Alternância de Temperatura, Comanthera. |
url |
https://ornamentalhorticulture.emnuvens.com.br/rbho/article/view/875 |
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