Relationship between alternate bearing and apical bud development in cranberry (<i>Vaccinium macrocarpon</i>)

Bolívar-Medina, Jenny L.; Zalapa, Juan; Atucha, Amaya; Patterson, Sara E.

doi:10.1139/cjb-2018-0058

Cited by 8 publications

(12 citation statements)

References 38 publications

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“…Floral meristem differentiation in cranberry buds occurs acropetally (Bolivar-Medina et al, 2019), as does the pattern of anthesis (Brown and McNeil, 2006). In our study, basal floral meristems had the most advanced development across all upright type and bud size combinations, and they were the greatest contributors to fruit production during the next growing season.…”

Section: Discussionmentioning

confidence: 46%

“…The present study documented the development of floral meristems in apical buds of vegetative and fruiting uprights in a new highyielding cranberry cultivar from fall to spring and considered their contributions to fruit production. Although several studies have focused on determining the presence and timing of the first appearance of floral initials in buds of vegetative and fruiting uprights of cranberry (Bolivar-Medina et al, 2019;DeVetter et al, 2013a), studies have not tracked development during the dormant period, and there has been no information regarding the differential contribution to fruit production.…”

Section: Discussionmentioning

confidence: 99%

“…2 and 4). Previous histological studies of cranberry apical buds reported that before harvest in the early fall (T0), floral initials formed and differentiated into floral meristems in large buds of vegetative and fruiting uprights (Bolivar-Medina et al, 2019;DeVetter et al, 2013a;Goff, 1901;Lacroix, 1926). Our observations not only support these previous findings but also show that floral meristems are differentiated in large, medium, and small buds of both fruiting and vegetative uprights from fall to spring (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Apical buds from fresh harvested uprights were excised and prepared for sectioning. Sample preparation was performed as described by Bolivar-Medina et al (2019). Briefly, apical buds were fixed in a solution of glutaraldehyde (Sigma-Aldrich, St. Louis, MO) overnight at 4°C, rinsed in phosphate buffer, and dehydrated in a graded ethanol series.…”

Section: Methodsmentioning

confidence: 99%

“…Flower formation is a multistep process, from floral meristems differentiation to anthesis, and all of the steps are influenced by endogenous factors, such as resource allocation (Alvarez-Buylla et al, 2010;Liu et al, 2009;Polito et al, 2002). Previous studies examining cranberry bud floral differentiation focused on the timing of the first appearance of floral primordia in summer (Bolivar-Medina et al, 2019;DeVetter et al, 2013a;Goff, 1901;Lacroix, 1926;Roberts and Struckmeyer, 1943). Lacroix (1926) described the floral meristem development process of older cranberry cultivars; however, a more complete study has not been performed for current high-yielding cultivars.…”

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confidence: 99%

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Floral Meristem Development in Cranberry Apical Buds during Winter Rest and Its Implication on Yield Prediction

Bolívar-Medina¹,

Villouta²,

Workmaster³

et al. 2019

J. Amer. Soc. Hort. Sci.

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The formation and development of floral meristems is key to fruit production. However, limited information regarding the development of floral buds during the dormant period of cranberry (Vaccinium macrocarpon) constrains the ability to forecast yield early and accurately. The objectives of this study were to characterize the development of floral meristems from fall to spring and to evaluate the number of floral meristems formed across different bud sizes and upright types, as well as their contribution to the fruit production of the next year. Apical buds of different sizes on vegetative and fruiting uprights were tagged and collected periodically from fall to spring for histological study. An extra set of tagged buds was left in the field to evaluate their flower and fruit production. Five stages of floral development were identified based on the concentric differentiation of organ primordia. Large buds from vegetative uprights developed earlier, had a higher number of floral meristems, and became fruiting uprights; they had the highest number of flowers and fruit. Buds from fruiting uprights had the lowest number of floral meristems and delayed development; subsequently, they had the lowest number of fruit per upright. Our results provide evidence of active floral meristem differentiation during fall and winter, as well as differences in the timing and development stage according to bud size. In addition, our study shows that upright types and bud sizes influence the fruit production of the following year; therefore, they should be considered in cranberry crop forecasting models.

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Section: Discussionmentioning

confidence: 46%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Floral Meristem Development in Cranberry Apical Buds during Winter Rest and Its Implication on Yield Prediction

Bolívar-Medina¹,

Villouta²,

Workmaster³

et al. 2019

J. Amer. Soc. Hort. Sci.

Self Cite

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The Barren Berry phenotype: untangling cranberry (Vaccinium macrocarpon Ait.) genetic contamination in central Wisconsin and beyond

Lazar,

Lopez-Moreno,

Wiesman

et al. 2024

Tree Genetics & Genomes

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Wisconsin is the world’s leading producer of cranberries (Vaccinium macrocarpon Ait.; 2n = 2x = 24). The state produces over twenty-thousand acres that contribute to more than 50% of the global total production, with more than one billion dollars in value. Cranberry growers in the “central sands” of Wisconsin have been experiencing yield decline due to vegetative unproductive genotypes, popularly known as “Barren Berry’’, which consistently remain vegetative and produce no fruit. The purpose of this study was to compare visual inspection in the field to DNA fingerprinting for the early detection of unproductive/barren genotypes. Additionally, the study served as a survey of unproductive genotypes in central Wisconsin, the largest growing region in the world. A total of 839 cranberry leaf samples, from 14 growers representing plantings to four cultivated varieties, were submitted for DNA testing of two visually determined phenotypes: unproductive or barren (n = 646; those that produced little to no fruit), versus productive or fruiting (n = 193). We conducted genetic fingerprinting on the leaf tissue using nine microsatellite markers previously shown to differentiate cranberry genotypes. This study identified a barren berry genotype unique to central Wisconsin, which we denoted “Barren Berry 1”. This genotype accounted for 43% of samples submitted as the barren berry phenotype. Genetic fingerprinting revealed sixty-five different genotypes in beds which were thought to be monocultures of just four cultivated genotypes. Early detection of genetic contamination through visual inspection, genetic testing, and responsible propagation can drastically aid in the management and longevity of cranberry beds, and in turn save time and money to the growers.

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Freezing stress survival mechanisms inVaccinium macrocarponAit. terminal buds

et al. 2020

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Plants’ mechanisms for surviving freezing stresses are essential adaptations that allow their existence in environments with extreme winter temperatures. Although it is known that Vaccinium macrocarpon Ait. buds can acclimate in fall and survive very cold temperatures during the winter, the mechanism for survival of these buds is not known. The main objective of this study was to determine which of the two major mechanisms of freezing stress survival, namely, deep supercooling or freeze-induced dehydration, are employed by V. macrocarpon terminal buds. In the present study, no low-temperature exotherms (LTEs) were detected by differential thermal analysis. Furthermore, a gradual reduction of relative liquid water content in the inner portions of buds during magnetic resonance imaging (MRI) scans performed between 0 and −20 °C (where no damage was detected in controlled freezing tests (CFT)) indicates these buds may not deep supercool. The higher ice nucleation activity of outer bud scales and the appearance of large voids in this structure in early winter, in conjunction with the MRI observations, are evidence supportive of a freeze-induced dehydration process. In addition, the presence of tissue browning in acclimated buds as a result of freezing stress was only observed in CFT at temperatures below −20 °C, and this damage gradually increased as test temperatures decreased and at different rates depending on the bud structure. Ours is the first study to collect multiple lines of evidence to suggest that V. macrocarpon terminal buds survive long periods of freezing stress by freeze-induced dehydration. Our results provide a framework for future studies of cold hardiness dynamics for V. macrocarpon and other woody perennial species and for the screening of breeding populations for freezing stress tolerance traits.

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Relationship between alternate bearing and apical bud development in cranberry (Vaccinium macrocarpon)

Cited by 8 publications

References 38 publications

Floral Meristem Development in Cranberry Apical Buds during Winter Rest and Its Implication on Yield Prediction

Floral Meristem Development in Cranberry Apical Buds during Winter Rest and Its Implication on Yield Prediction

The Barren Berry phenotype: untangling cranberry (Vaccinium macrocarpon Ait.) genetic contamination in central Wisconsin and beyond

Freezing stress survival mechanisms inVaccinium macrocarponAit. terminal buds

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