Pollination of ‘Hortblue Petite’ Blueberry: Evidence of Metaxenia in a New Ornamental Home-garden Cultivar

Miller, S.; Alspach, P. A.; Scalzo, Jessica; Meekings, J.S.

doi:10.21273/hortsci.46.11.1468

Cited by 14 publications

(14 citation statements)

References 15 publications

(17 reference statements)

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“…Therefore, berry growth in blueberry is apparently affected by the pollen source. Shirley et al [12] reported that pollination by pollen from large fruiting cultivars produced larger fruit in ‘Hortblue Petite’ and that was evidence of metaxenia in blueberry. Metaxenia, which might be included in xenia because the definitions of xenia and metaxenia are somewhat different among researchers, is a phenomenon by which characteristics of the pollen parent are expressed in maternal tissues outside the embryo and endosperm in general [13].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Number of Seeds per Berry on Fruit Growth Characteristics, Especially on the Duration of Stage II in Blueberry

Doi

Nozaki

Takahashi

et al. 2018

Plants

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In present research, differences in the number of seeds per berry (NSB), berry fresh weight (BW), days to ripening from flowering (DRF), and the duration of a slow growth phase (DS II) among pollen sources were investigated in highbush blueberry (Vaccinium corymbosum). NSB, as well as BW and DRF, were significantly different among the pollen sources. Analysis of covariance (ANCOVA) with NSB as the covariate showed significant interaction between the NSB and pollen sources on BW and DRF when self-pollination was included. However, ANCOVA without self-pollination showed no significant effect of the pollen source on BW and DRF. On the other hand, DS II was negatively correlated with NSB, and no significant interaction between NSB and pollen sources was found, even though self-pollination was included. Although the relationship between NSB and DS II appeared not to be statistically influenced by the different pollen sources, there seemed to be some difference between self- and cross-pollination. DS II shortened as the NSB increased, which may have led to a decrease in DRF.

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Section: Introductionmentioning

confidence: 99%

Effects of the Number of Seeds per Berry on Fruit Growth Characteristics, Especially on the Duration of Stage II in Blueberry

Doi

Nozaki

Takahashi

et al. 2018

Plants

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“…Northern highbush blueberry (Vaccinium corymbosum), rabbiteye blueberry, and southern highbush blueberry (V. corymbosum interspecific hybrids) are the three most commercially important species cultivated (Yu et al, 2016). As not all of these species are self-compatible, the need for cross-pollination between botanical varieties is widely acknowledged by commercial growers (Miller et al, 2011;M€ uller et al, 2013), and pollination by bees is required to improve yield and quality (Nicholson and Ricketts, 2019).…”

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confidence: 99%

High Temperatures during Flowering Reduce Fruit Set in Rabbiteye Blueberry

Yang¹,

Er²,

Fu³

et al. 2019

J. Amer. Soc. Hort. Sci.

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After nearly a decade of development, the scale of blueberry (Vaccinium sp.) cultivation has increased, particularly in south China; however, this region is becoming increasingly challenged by temperature changes during the flowering phenophase. Understanding the effects of temperature on pollen germination and pollen tube growth in blueberry is thus important. Using the rabbiteye blueberry (V. ashei) ‘Brightwell’, different temperature treatments were carried out during open pollination and cross-pollination with the pollen from rabbiteye blueberry ‘Gardenblue’ in field, greenhouse, and controlled temperature experiments over two consecutive years. The differences in pollen germination, pollen tube dynamics, and ovule viability following different treatments were analyzed, and the critical temperatures were calculated using quadratic and modified bilinear equations to quantify the developmental responses to temperature. The results showed that the fruit set of the artificially pollinated plants inside the greenhouse was significantly higher than that outside the greenhouse. Furthermore, pollen germination and pollen tube growth gradually accelerated under the appropriate high-temperature range, resulting in reduced pollen tube travel time to the ovule. However, the percentage of the style traversed by the pollen tube did not increase at temperatures greater than 30 °C, and a high-temperature range could accelerate ovule degeneration. Therefore, impairment of pollen tube growth in the upper half of the style following pollen germination and ovule degeneration constituted important factors leading to reduced fruit setting under short periods of high temperature during the flowering phenophase in rabbiteye blueberry. This work advances our understanding of the effect of temperature on pollen germination, pollen tube growth, ovule longevity, and fruit setting in rabbiteye blueberry, and provides a foundation for continued cultivation and breeding enhancement. The findings propose that the tolerance of rabbiteye blueberry to a certain high-temperature range in the flowering phenophase should inform breeding strategies for temperature resistance and that temperature range is also an important indicator of suitable environments for cultivation to mitigate potential temperature stress.

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“…This recommendation is based on previous research describing the benefits of cross-pollination among cultivated blueberry species. Cross-pollination has typically been associated with improved fruit set in northern highbush blueberry [V. corymbosum (Bailey, 1938;Coville, 1921;Dogterom et al, 2000;Ehlenfeldt, 2001;MacKenzie, 1997;Meader and Darrow, 1947;Miller et al, 2011;Morrow, 1943)], rabbiteye blueberry [Vaccinium virgatum (Darnell and Lyrene, 1989;El-Agamy et al, 1981;Gupton and Spiers, 1994;Meader and Darrow, 1944;Payne et al, 1989)], lowbush (Vaccinium angustifolium) and half-high blueberry (V. corymbosum · V. angustifolium hybrids) (Aalders and Hall, 1961;Harrison et al, 1994;Rabaey and Luby, 1988;Wood, 1968), and SHB (Chavez and Lyrene, 2009;El-Agamy et al, 1981;Gupton and Spiers, 1994;Lyrene, 1989). In contrast, greater fruit set in a cultivar after self-pollination compared with cross-pollination has been observed infrequently and has often been attributed to reduced compatibility with the pollen source used for cross-pollination (Ehlenfeldt, 2001;Gupton, 1984;Lang and Danka, 1991;White and Clark, 1939).…”

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confidence: 99%

Impact of Cross- and Self-pollination on Fruit Set, Fruit Size, Seed Number, and Harvest Timing Among 13 Southern Highbush Blueberry Cultivars

Taber¹,

Olmstead²

2016

hortte

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Cross-pollination has been associated with improved fruit set, weight, and shortened time to ripening in southern highbush blueberry [SHB (Vaccinium corymbosum interspecific hybrids)]. Because of this, growers commonly plant two or more cultivars in small blocks to facilitate cross-pollination. However, many SHB cultivars may vary in the degree of improvement in each parameter after cross-pollination. Understanding the impacts of cross-pollination on a particular cultivar is crucial to forming planting recommendations, particularly as growers begin to transition to fields designed for machine harvest where large solid blocks would increase the harvest efficiency. The objective of this study was to examine the effects of cross- and self-pollination among 13 commonly planted or newly released SHB cultivars. Cross-pollination typically improved fruit set, fruit weight, and seed number while decreasing the average days to harvest. Cross-pollinated fruit always weighed more than self-pollinated fruit from the same cultivar, which was highly correlated to seed number per fruit. Although there was variation for each trait, interplanting with another unrelated cultivar sharing a similar bloom time remains the best recommendation to ensure early, high yield among these SHB cultivars.

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Pollination of ‘Hortblue Petite’ Blueberry: Evidence of Metaxenia in a New Ornamental Home-garden Cultivar

Cited by 14 publications

References 15 publications

Effects of the Number of Seeds per Berry on Fruit Growth Characteristics, Especially on the Duration of Stage II in Blueberry

Effects of the Number of Seeds per Berry on Fruit Growth Characteristics, Especially on the Duration of Stage II in Blueberry

High Temperatures during Flowering Reduce Fruit Set in Rabbiteye Blueberry

Impact of Cross- and Self-pollination on Fruit Set, Fruit Size, Seed Number, and Harvest Timing Among 13 Southern Highbush Blueberry Cultivars

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