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

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, Paraná, 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.

Influence of some environmental factors on the feijoa (Acca sellowiana [Berg] Burret): A review

“…The most extensive production is found in Colombia, New Zealand, Georgia, Ukraine, but also in the United States, Australia, Turkey, China and with an increasing area of cultivation in Brazil (Sachet et al, 2019;Sánchez-Mora et al, 2019). This distribution in such varied countries and climates demonstrates the great potential for the plasticity that this species possesses for adaptation to very diverse environmental conditions (Donazzolo et al, 2019). Ouafaa et al (2019) not only highlight the fruit's easy adaptation to subtropical climates but also the sweet aromatic characteristics of the feijoa fruit that favor its distribution in so many countries.…”

Aspectos del cultivo y la fisiología de la feijoa (Acca sellowiana [Berg] Burret). Una revisión

“…La feijoa (Acca sellowiana [O. Berg] Burret) es oriunda de América del Sur, de la región del sur de Brasil, Uruguay, zona alta de Paraguay occidental y el noreste de Argentina (Parra-Coronado & Fischer, 2013). Es mayormente sembrada en Colombia, Nueva Zelanda, Georgia y Ucrania, y en áreas menores en Estados Unidos, Australia, Nueva Zelanda, Turquía y China, con plantaciones crecientes en Brasil (Sachet et al, 2019), por lo cual Donazzolo et al (2019) destacan su plasticidad y adaptación a condiciones ambientales muy diversas, hecho demostrado por esta distribución en zonas y climas tan variados.…”