دورية أكاديمية
Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio
العنوان: | Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio |
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المؤلفون: | Maria Lorraine Fonseca Oliveira, Telma Nair Santana Pereira, Rodrigo Miranda Barbosa, Alexandre Pio Viana |
المصدر: | Acta Scientiarum: Agronomy, Vol 43, Iss 1 (2020) |
بيانات النشر: | Eduem (Editora da Universidade Estadual de Maringá), 2020. |
سنة النشر: | 2020 |
المجموعة: | LCC:Agriculture (General) |
مصطلحات موضوعية: | Allogamy, autogamy, Psidium cattleyanum, Psidium guajava, Psidium guineense., Agriculture (General), S1-972 |
الوصف: | This research aimed to explore the reproductive characteristics of three species of Psidium (P. guajava L., P. cattleyanum Sabine, and P. guineense Sw.) and estimate a probable reproduction strategy based on the pollen:ovule (P:O) methodology. The number of pollen grains per floral bud (NGPB), number of pollen grains per anther (NGPA), number of anthers per flower bud (NAB), number of ovules per flower bud (NOB), and the P:O ratio of each species were estimated. All species had a P:O ratio over 2,000 and were classified as xenogamous. P.guajava presented the highest values for all characteristics evaluated, with the NGPB at 3,777,519, the NOB at 584.50 and a P:O ratio of 6,462.82. Similarly, P. cattleyanum had a P:O ratio of 5,649.89 (NGPB 762,736 and NOB 135). However, P. guineense was considered facultative xenogamous, with P:O of 2,085.75, the NGPB at 741,484 and the NOB at 355.50. Thus, it was concluded that the studied species have a preference for allogamy and require many pollen grains to fertilize each ovule, demonstrating that the transfer of pollen to the stigma is not very specialized. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 1679-9275 1807-8621 |
Relation: | https://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/44062; https://doaj.org/toc/1679-9275; https://doaj.org/toc/1807-8621 |
DOI: | 10.4025/actasciagron.v43i1.44062 |
URL الوصول: | https://doaj.org/article/d0180e4561e843d2859d11c148889bb1 |
رقم الأكسشن: | edsdoj.0180e4561e843d2859d11c148889bb1 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 16799275 18078621 |
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DOI: | 10.4025/actasciagron.v43i1.44062 |