Reproductive Biology and Flowering of Feijoa (Acca sellowiana (Berg) Burret) in Areas of Marginal Occurrence

Joel Donazzolo,Idemir Citadin,Moeses Andrigo Danner,Larissa Corradi Voss,Rubens Onofre Nodari,Eliza Luana Charneski Turra

doi:10.5539/jas.v11n8p156

Abstract

Studies of feijoa adaptability in different locations, with specific weather conditions can be useful for the cultivation of the species. The objective of this work was to study aspects of reproductive biology (pollen viability and fruit set under different methods of pollination) and flowering phenology of feijoa in regions of marginal species occurrence. Progenies of five different crosses were evaluated in 2011 in Pato Branco and Dois Vizinhos, Paran&aacute;, Brazil. Effective fruit set was low with manual self-pollination and open pollination, but was higher with manual cross-pollination, demonstrating a lack of pollinators or even self-incompatibility in some progenies. For both sites, pollen viability was extremely low and atypical for the species. The flowering period of feijoa started earlier and was extended in these marginal regions. Manual pollination is required for a good fruit set.

Highlights

Known in Brazil as “goiabeira-serrana”, is classified as Acca sellowiana (Berg) Burret (Mattos, 1986) and is defined by the Ministry of the Environment as a native species that is potentially important for commercial cultivation (Coradin, Siminski, & Reis, 2011)
Its fruits can be consumed fresh or processed (Thorp & Bieleski, 2002). This tree belongs to the Myrtaceae family, and is native to the Brazilian southern plateau, frequently found in forests along with Paraná pines (Araucaria angustifolia), or in Araucaria Moist Forests (Lorenzini, Boff, Rech, & Boff, 2007)
Its fruits can be consumed fresh or processed (Thorp & Bieleski, 2002). It occurs in the South of Brazil, and in Northern Uruguay (Mattos, 1986; Thorp & Bieleski, 2002; Vignale & Bisio, 2005), which are the regions considered the center of its origin and diversity

Summary

Introduction

Known in Brazil as “goiabeira-serrana”, is classified as Acca sellowiana (Berg) Burret (Mattos, 1986) and is defined by the Ministry of the Environment as a native species that is potentially important for commercial cultivation (Coradin, Siminski, & Reis, 2011). Its fruits can be consumed fresh or processed (Thorp & Bieleski, 2002) This tree belongs to the Myrtaceae family, and is native to the Brazilian southern plateau, frequently found in forests along with Paraná pines (Araucaria angustifolia), or in Araucaria Moist Forests (Lorenzini, Boff, Rech, & Boff, 2007). It occurs in the South of Brazil, and in Northern Uruguay (Mattos, 1986; Thorp & Bieleski, 2002; Vignale & Bisio, 2005), which are the regions considered the center of its origin and diversity. In Brazil, there are initiatives to adapt the cultivation this species outside of the preferred regions (Santos, Donazzolo, Guries, Peroni, & Nodari, 2018; Donazzolo, Ornellas, Bertoldo, & Nodari, 2014)

Objectives

Methods

Results

Conclusion