Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/30306
Title: Self-compatible blueberry cultivars require fewer floral visits to maximize fruit production than a partially self-incompatible cultivar
Contributor(s): Kendall, Liam K (author); Gagic, Vesna (author); Evans, Lisa J (author); Cutting, Brian T (author); Scalzo, Jessica (author); Hanusch, Yolanda (author); Jones, Jeremy (author); Rocchetti, Maurizio (author); Sonter, Carolyn  (author); Keir, Matthew (author); Rader, Romina  (author)orcid 
Publication Date: 2020-12
Early Online Version: 2020-08-25
DOI: 10.1111/1365-2664.13751
Handle Link: https://hdl.handle.net/1959.11/30306
Abstract: 1. Effective pollination is a complex phenomenon determined by the outcome of the interaction between pollen transfer and a plants' pollinator dependency, yet most studies investigate pollinator effectiveness without consideration of plant mating system differences.
2. We investigated pollinator effectiveness in three types of blueberry that differed in their degree of pollinator dependency as measured by plant mating system: two self-compatible highbush cultivars and one partially self-incompatible rabbiteye cultivar. We quantified pollinator effectiveness as a function of the fruit set and fruit weight resulting from single and multiple floral visits (2–15 visits), in comparison with estimates of fruit set and fruit weight resulting from experimental pollination treatments (open-pollination, cross-pollination and self-pollination).
3. Single-visit effectiveness of fruit set was similar across pollinator taxa but considerably higher in both self-compatible cultivars. The probability of fruit set in all three blueberry types improved in response to an increasing number of visits, but this relationship was steeper in self-compatible cultivars: >90% probability of fruit set was achieved in three to five visits. In the self-incompatible rabbiteye cultivar, 58% fruit set was achieved with 15 visits. Multiple visits improved fruit weight by 27%–48% in self-compatible cultivars, but there was no relationship in rabbiteye. Pollination deficits in fruit set and fruit weight due to self-pollination were most pronounced in rabbiteye.
4. Synthesis and applications. Improved understanding of cultivar-level mating system differences in plants will inform pollination planning and management in agroecosystems. Self-compatible (highbush) cultivars require less floral visitation to maximize fruit production. Therefore, these cultivars may be best suited to landscapes in which pollinator abundance is low, such as intensive and/or simple landscapes. In contrast, self-incompatible (rabbiteye) cultivars may benefit from the implementation of mixed-cultivar crop row plantings to facilitate cross-pollination.
Publication Type: Journal Article
Grant Details: ARC/DE170101349
Source of Publication: Journal of Applied Ecology, 57(12), p. 2454-2462
Publisher: Wiley-Blackwell Publishing Ltd
Place of Publication: United Kingdom
ISSN: 1365-2664
1472-0043
0021-8901
Fields of Research (FoR) 2008: 070107 Farming Systems Research
Fields of Research (FoR) 2020: 300406 Crop and pasture improvement (incl. selection and breeding)
Socio-Economic Objective (SEO) 2008: 960804 Farmland, Arable Cropland and Permanent Cropland Flora, Fauna and Biodiversity
960504 Ecosystem Assessment and Management of Farmland, Arable Cropland and Permanent Cropland Environments
Socio-Economic Objective (SEO) 2020: 180606 Terrestrial biodiversity
180601 Assessment and management of terrestrial ecosystems
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Environmental and Rural Science

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