Post-Harvest Hedging and Pruning of Three Year Pruning Trial on ‘Climax’ and ‘Tifblue’ Rabbiteye Blueberry

Krewer, Gerard; Stanaland, Danny; NeSmith, Scott; Mullinix, B. G.

doi:10.1300/j301v03n01_20

Cited by 5 publications

(8 citation statements)

References 1 publication

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“…Timing of summer pruning did not affect total yield in either cultivar, supporting work by Krewer et al (2004), who also found no effect of time of summer pruning on total yield in rabbiteye blueberries. In contrast, Williamson and Darnell (1996) found late pruning of 'Sharpblue' SHB reduced yield compared with early pruning and no pruning.…”

Section: Treatment Ysupporting

confidence: 78%

“…However, in Georgia, yield decreased in summer or winter pruned rabbiteye blueberries compared with nonpruned plants, although fruit size was greater in the pruned treatments compared with nonpruned (Austin, 1997). Krewer et al (2004) found no differences in yield or fruit size between summer pruned and nonpruned rabbiteye blueberry in Georgia.…”

mentioning

confidence: 71%

“…Souza et al (2014) found that winter hand pruning, regardless of intensity, resulted in earlier yields for rabbiteye blueberry compared with no pruning. Krewer et al (2004) showed that hedging resulted in delayed inflorescence bud development during the spring, which is linked to the time of inflorescence bud initiation (Kovaleski et al, 2015b). Bañados et al (2009) also shows that summer pruning delayed fruit harvest as a result of delayed flower bud development, Table 3.…”

Section: Discussionmentioning

confidence: 99%

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Effects of Timing and Intensity of Summer Pruning on Reproductive Traits of Two Southern Highbush Blueberry Cultivars

Kovaleski

Darnell

Casamali

et al. 2015

horts

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Blueberry (Vaccinium spp.) summer pruning can increase yield by promoting healthy fall foliage to support the reproductive development. However, there has been little research to examine the effects of timing and intensity of summer pruning in subtropical conditions. The objective of this study was to determine the effects of summer pruning timing and intensity on reproductive traits of mature ‘Jewel’ and ‘Emerald’ southern highbush blueberry (SHB) plants (V. corymbosum L. interspecific hybrid) in subtropical Florida. The effect of pruning time was evaluated by removing 30% of the canopy in June or July. The effect of intensity was evaluated by pruning either 30% or 60% of the canopy in June, followed by removal of the upper 5 cm of regrowth (“tipping”) in July. Both timing and intensity used nonpruned plants as a control. The same plants were evaluated over three consecutive seasons (June 2011–May 2014). Main effects of pruning time, intensity, and tipping were evaluated. Tipping did not affect the reproductive traits evaluated. ‘Emerald’ reproductive traits were unaffected by either summer pruning time or intensity over the 3-year study. ‘Jewel’ yield was unaffected in the first year, but was increased by 48% and 65% in years 2 and 3, respectively, in the 30% pruning treatment compared with the nonpruned control. Lack of pruning in ‘Jewel’ decreased inflorescence bud number compared with moderate pruning likely due to more diseased foliage that increased defoliation. Thus, pruning effects on reproductive traits were cultivar dependent. Leaving ‘Jewel’ plants unpruned for two or more seasons reduced inflorescence bud number and yield.

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Section: Treatment Ysupporting

confidence: 78%

mentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

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Effects of Timing and Intensity of Summer Pruning on Reproductive Traits of Two Southern Highbush Blueberry Cultivars

Kovaleski

Darnell

Casamali

et al. 2015

horts

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“…to regulate the balance between vegetative growth and reproductive development (Kovaleski et al, 2015;Muller, 2011;Pescie et al, 2011). No pruning leads to smaller and fewer fruits (Hindle et al, 1957), excessively tall and difficult to harvest bushes (Krewer et al, 2004;Pescie et al, 2011), as well as decreasing vigor and node number in shoots (Pescie et al, 2011). An increasing number of productive shoots arising from canes reduces productive capacity if they are left unpruned for several years because shoots become thinner and shorter with fewer internodes.…”

Section: Introductionmentioning

confidence: 99%

“…Cutting back vigorous shoots removes apical dominance and promotes lateral bud break during the same season (Banados et al, 2009). Winter pruning is well-documented in blueberry cultivation (Albert et al, 2010;Krewer et al, 2004;Muller, 2011;Siefker and Hancock, 1987). Gough (1991) reported that blueberries should be pruned annually during late winter and early spring in the northern USA.…”

Section: Introductionmentioning

confidence: 99%

Summer Pruning Differentiates Vegetative Buds to Flower Buds in the Rabbiteye Blueberry (<i>Vaccinium virgatum</i> Ait.)

et al. 2017

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Pruning is a recommended cultural practice in blueberries (Vaccinium spp.) to maintain the balance between vegetative growth and reproductive development. Winter pruning is common and well-documented practice. Summer pruning, however, has been less studied. In this study, 5 primaryshoots (PSs) were selected per treatment (pruning date) on 5 different bushes (replications) of the rabbiteye blueberry (Vaccinium virgatum Ait.) 'Tifblue' and half-length headed back during its active growth period from June through Nov. The hypothesis tested in this study was that summer pruning induces flower buds at the basal area of PSs, controls the plant canopy and makes it possible to harvest fruits in the next summer season from the same shoots. In this study, there were no significant differences observed among any treatments with respect to yield and fruit quality. Early summer pruning (June) stimulated secondaryshoots (SSs) and later in autumn, terminal flower buds of these SSs produced fruits in the following year. However, no SSs were produced after summer pruning in Sept., and only vegetative buds that were at the basal area of PSs differentiated to flower buds and produced fruits in the following year. In conclusion, summer pruning can be practiced to complement or replace winter pruning and growers could decide the date of summer pruning in accordance with the size of plants' canopies. Plants with smaller canopies can be pruned in June and those with bigger canopies can be pruned in Sept.

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Distribution of Xylella fastidiosa in Blueberry Stem and Root Sections in Relation to Disease Severity in the Field

et al. 2014

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Post-Harvest Hedging and Pruning of Three Year Pruning Trial on ‘Climax’ and ‘Tifblue’ Rabbiteye Blueberry

Cited by 5 publications

References 1 publication

Effects of Timing and Intensity of Summer Pruning on Reproductive Traits of Two Southern Highbush Blueberry Cultivars

Effects of Timing and Intensity of Summer Pruning on Reproductive Traits of Two Southern Highbush Blueberry Cultivars

Summer Pruning Differentiates Vegetative Buds to Flower Buds in the Rabbiteye Blueberry (<i>Vaccinium virgatum</i> Ait.)

Distribution of Xylella fastidiosa in Blueberry Stem and Root Sections in Relation to Disease Severity in the Field

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