Reproductive biology of Sphaeralcea species with ornamental interest
The genus Sphaeralcea belongs to the Malvaceae family and has native species from South America. Their attractive morphological characteristics with ornamental value have not yet been explored. The objective of this work was to know the viability of pollen, stigma receptivity, type of pollination a...
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| Format: | Article |
| Language: | English |
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Firenze University Press
2024-01-01
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| Series: | Advances in Horticultural Science |
| Subjects: | |
| Online Access: | https://oaj.fupress.net/index.php/ahs/article/view/13616 |
| _version_ | 1797351282959187968 |
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| author | Agustina Gutiérrez Paula Monzón Sandra Micheletto Pablo Marinangeli |
| author_facet | Agustina Gutiérrez Paula Monzón Sandra Micheletto Pablo Marinangeli |
| author_sort | Agustina Gutiérrez |
| collection | DOAJ |
| description |
The genus Sphaeralcea belongs to the Malvaceae family and has native species from South America. Their attractive morphological characteristics with ornamental value have not yet been explored. The objective of this work was to know the viability of pollen, stigma receptivity, type of pollination and combining ability of four Sphaeralcea species (S. australis, S. bonariensis, S. crispa and S. mendocina), with the aim to develop new ornamental varieties. Fructification, fertility, seed germination and survival seedlings on intraspecific and reciprocal interspecific offspring were assessed. The highest values of stigma receptivity and pollen viability were obtained at 2:00 pm for the four species. S. mendocina also showed high values of pollen viability at 4:00 pm. The species proved to be self-incompatible and allogamous, with different degrees of reproductive compatibility. The interspecific crosses of S. mendocina and the intraspecific of S. crispa did not produce descendants. The crosses between S. australis and S. bonariensis as maternal parent presented the best combining ability with good fruit production, seed germination and survival. This research provides useful information for the formulation and implementation of breeding strategies, to improve pollination efficiency, and to breed new Sphaeralcea varieties with ornamental potential.
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| first_indexed | 2024-03-08T12:58:04Z |
| format | Article |
| id | doaj.art-53cc56a29b8b41b9a8da3f3688076c40 |
| institution | Directory Open Access Journal |
| issn | 0394-6169 1592-1573 |
| language | English |
| last_indexed | 2024-03-08T12:58:04Z |
| publishDate | 2024-01-01 |
| publisher | Firenze University Press |
| record_format | Article |
| series | Advances in Horticultural Science |
| spelling | doaj.art-53cc56a29b8b41b9a8da3f3688076c402024-01-19T14:38:45ZengFirenze University PressAdvances in Horticultural Science0394-61691592-15732024-01-0137410.36253/ahsc-13616Reproductive biology of Sphaeralcea species with ornamental interestAgustina Gutiérrez0Paula Monzón1Sandra Micheletto2Pablo Marinangeli3Center for Renewable Natural Resources of the Semi-Arid Region (CERZOS) CONICET - UNS, 8000 B Blanca, Argentina.Department of Biology, Biochemistry and Pharmacy, National University of the South, 8000 B Blanca, Argentina.Center for Renewable Natural Resources of the Semi-Arid Region (CERZOS) CONICET - UNS, 8000 B Blanca, Argentina.Deparment of Agronomy, National University of the South, 8000 D Blanca, Argentina. The genus Sphaeralcea belongs to the Malvaceae family and has native species from South America. Their attractive morphological characteristics with ornamental value have not yet been explored. The objective of this work was to know the viability of pollen, stigma receptivity, type of pollination and combining ability of four Sphaeralcea species (S. australis, S. bonariensis, S. crispa and S. mendocina), with the aim to develop new ornamental varieties. Fructification, fertility, seed germination and survival seedlings on intraspecific and reciprocal interspecific offspring were assessed. The highest values of stigma receptivity and pollen viability were obtained at 2:00 pm for the four species. S. mendocina also showed high values of pollen viability at 4:00 pm. The species proved to be self-incompatible and allogamous, with different degrees of reproductive compatibility. The interspecific crosses of S. mendocina and the intraspecific of S. crispa did not produce descendants. The crosses between S. australis and S. bonariensis as maternal parent presented the best combining ability with good fruit production, seed germination and survival. This research provides useful information for the formulation and implementation of breeding strategies, to improve pollination efficiency, and to breed new Sphaeralcea varieties with ornamental potential. https://oaj.fupress.net/index.php/ahs/article/view/13616Combining abilityMalvaceaemating systempollen viabilitystigma receptivity |
| spellingShingle | Agustina Gutiérrez Paula Monzón Sandra Micheletto Pablo Marinangeli Reproductive biology of Sphaeralcea species with ornamental interest Advances in Horticultural Science Combining ability Malvaceae mating system pollen viability stigma receptivity |
| title | Reproductive biology of Sphaeralcea species with ornamental interest |
| title_full | Reproductive biology of Sphaeralcea species with ornamental interest |
| title_fullStr | Reproductive biology of Sphaeralcea species with ornamental interest |
| title_full_unstemmed | Reproductive biology of Sphaeralcea species with ornamental interest |
| title_short | Reproductive biology of Sphaeralcea species with ornamental interest |
| title_sort | reproductive biology of sphaeralcea species with ornamental interest |
| topic | Combining ability Malvaceae mating system pollen viability stigma receptivity |
| url | https://oaj.fupress.net/index.php/ahs/article/view/13616 |
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