Pruning and training.

Strik, B.C.; Takeda, Fumiaki; Gao, Guang R.

doi:10.1079/9781780646688.0169

Cited by 7 publications

(19 citation statements)

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“…Primocanes are then trained onto the trellis wires in late August or in February. A small proportion of growers are not caning out and are training the primocanes over the dead floricane canopy, a system called new-over-old; this saves them labor costs associated with caning out and primocane training [9].…”

Section: Introductionmentioning

confidence: 99%

“…In the off-year of an AY system, more primocanes grow per plant than in the EY system, because primocanes in the EY system compete for resources with floricanes [10]. The yield of the AY system is about 80% of the EY production system, depending on cultivar [9], however there are cost savings [6] and less risk of winter cold injury (historically) for AY systems [11].…”

Section: Introductionmentioning

confidence: 99%

“…In EY production systems, most growers train primocanes in February, because leaving the canes on the ground for most of the winter, reduces the exposure of canes to cold desiccating winds and reduces the risk of winter cold damage [11]. In AY production, primocanes that have been trained as they grow in the off-year are more cold hardy than primocanes that grew in the presence of floricanes in EY production systems [9,[11][12][13]. Lack of sufficient cold hardiness is a major production problem preventing sustainable yield of 'Marion' over an extended period of time [4].…”

Section: Introductionmentioning

confidence: 99%

“…Primocane suppression removes (or kills) the first flush of primocane growth. The plants respond by producing another flush of primocanes [8,9]. In red raspberry (Rubus idaeus L.), primocane suppression increases current-season yield [18][19][20][21][22] due to competition of resources between primocanes and floricanes.…”

Section: Introductionmentioning

confidence: 99%

“…1.5 m in-row spacing, EY production with February-training of primocanes (industry standard [2,9]). Primocanes not topped.…”

mentioning

confidence: 99%

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Pruning and Training Systems Impact Yield and Cold Hardiness of ‘Marion’ Trailing Blackberry

Strik

2018

Agriculture

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The floricane-fruiting, trailing blackberry (Rubus L. subgenus Rubus, Watson) cultivar Marion was evaluated in two plantings for the impact of floricane pruning date. This included leaving the dead canes unpruned and training new primocanes over the dead wood (new-over-old), primocane topping and suppression date in alternate year (AY) and every year (EY) production systems at various planting densities. The presence of primocanes during fruit development did not affect yield of the floricane in the current season but suppressing primocanes to June 30 in Oregon, USA, led to insufficient time for primocane growth, reducing yield of the floricane the following year by 36% relative to no primocane suppression. Pruning out senescing floricanes immediately after fruit harvest or later—thus allowing more time for remobilization of nutrients or reserves—had no impact on yield. However, yield in the new-over-old system was higher, likely due to less training damage to primocanes in this treatment. All of the AY treatments studied led to lower berry weight compared to EY production but this has not been an issue in the processed fruit market to date. Plants in AY production produced more canes per plant than in EY but at the industry standard spacing of 1.5 m, AY plants yielded only 60% to 66% more than EY plants in these studies, despite evidence of plants in AY production having greater cold hardiness. There was no significant effect of planting at higher density (0.6 and 0.9 m) on cumulative yield over 4 years. However, planting at 0.6 m and topping the primocanes to the top trellis wire (1.8 m) increased yield significantly compared to other AY treatments. This alternative production system may offer economic advantages to the 1.5 m EY or AY production systems through reducing management costs and allowing for mechanical pruning and training.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%