Characterization of the Reproductive Behavior of Two New Mandarin Hybrids

Authors

  • Ana Paula Mautone Universidad de la República, Facultad de Agronomía, Departamento de Producción Vegetal. Avenida Garzón 780, 12900 Montevideo, Uruguay
  • Florencia Rey Universidad de la República, Facultad de Agronomía, Departamento de Producción Vegetal. Avenida Garzón 780, 12900 Montevideo, Uruguay
  • Virginia Pereira das Neves Universidad de la República, Facultad de Agronomía, Departamento de Producción Vegetal. Avenida Garzón 780, 12900 Montevideo, Uruguay
  • Natalia Guimaraes Universidad de la República, Facultad de Agronomía, Departamento de Producción Vegetal. Avenida Garzón 780, 12900 Montevideo, Uruguay
  • Giuliana Gambetta Universidad de la República, Facultad de Agronomía, Departamento de Producción Vegetal. Avenida Garzón 780, 12900 Montevideo, Uruguay
  • Alfredo Gravina Universidad de la República, Facultad de Agronomía, Departamento de Producción Vegetal. Avenida Garzón 780, 12900 Montevideo, Uruguay

DOI:

https://doi.org/10.31285/AGRO.20.2.5

Keywords:

self-incompatibility, parthenocarpic ability, seeds, pollen viability

Abstract

The reproductive behavior of M9 and B30, two new hybrids of mandarin (‘Ellendale’ tangor x Satsuma ‘Owari’) developed at the Uruguayan Citrus Breeding Program, was studied during two annual cycles. Self-incompatibility of both cultivars was demonstrated, both in natural self-pollination and in directed pollination. In both hybrids, low in vitro pollen germination ability was found. In M9, since 3rd day after anthesis, an in vivo ovule viability loss was evident. At open pollination, 80 % of M9 fruit was seedless, while in B30 the percentage scarcely reached 16 %. After pollinated with ‘Afourer’ mandarin, ‘Valencia’ orange and ‘Lisbon’ lemon, M9 had only 33 % of seedy fruit when ‘Afourer’ was the pollinator. On the contrary, B30 presented 100 % of seedy fruit after being pollinated with ‘Afourer’ and ‘Valencia’. Reproductive differences between both hybrids are discussed.

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Published

2016-12-01

How to Cite

1.
Mautone AP, Rey F, Pereira das Neves V, Guimaraes N, Gambetta G, Gravina A. Characterization of the Reproductive Behavior of Two New Mandarin Hybrids. Agrocienc Urug [Internet]. 2016 Dec. 1 [cited 2023 Feb. 5];20(2):29-35. Available from: https://agrocienciauruguay.uy/index.php/agrociencia/article/view/191

Issue

Section

Plant production