Root Pruning: A Valuable Alternative to Reduce the Growth of ‘Conferenc’

Vercammen, J.; Daele, G. van; Gomand, A.

doi:10.17660/actahortic.2005.671.74

Cited by 18 publications

(13 citation statements)

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“…4). Consequently, the total shoot length and the number of shoots per tree decreased by more than 72% and 43%, respectively, in the RP than in the NP treatment for 2010 and 2011 (Table 2), which was in good agreement with earlier findings (Schupp, Ferree 1990;Khan et al 1998;Vercammen et al 2005;Asín et al 2007). Even though root pruning had stimulated the root growth in certain soil layers, e.g., 30-40 cm (Fig.…”

Section: Resultssupporting

confidence: 91%

“…Early studies show that root pruning could reduce the yields of fruit trees due to lowered leaf area index hence a reduced photo-assimilate supply (Ferree 1989;Khan et al 1998). Besides, the capacity for water and nutrient uptake of fruit trees is often negatively affected under root pruning due to severe damage to the root system (Vercammen et al 2005). Thus, the root-pruned trees are more likely to suffer from drought stress and nutrient deficiency, which may constrain fruit growth, fruit yield and quality, resulting in smaller fruit.…”

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confidence: 99%

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Effect of root pruning and irrigation regimes on pear tree: growth, yield and yield components

Wang¹,

Travers²,

Bertelsen³

et al. 2014

Hort. Sci. (Prague)

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Wang Y., Travers S., Bertelsen M.G., Thorup-Kristensen K., Petersen K.K., Liu F., 2014. Effect of root pruning and irrigation regimes on pear tree: growth, yield and yield components. Hort. Sci. (Prague), 41: 34-43.The effect of root pruning (RP) as compared with non-root pruning (NP) and the potential of supplemental irrigation in alleviating the negative effect of root pruning on fruit growth, yield and yield components were investigated in a pear orchard from 2010 to 2011. Results showed that the total shoot length and the number of shoots per tree decreased by 72% and 43%, respectively, in the RP compared to the NP trees; however lateral root growth was stimulated by the RP treatment in the upper soil layers (30-40 cm). Full irrigation and deficit irrigation treatments stabilized the return bloom and improved fruit yield and size compared with the non-irrigated treatment without stimulating vegetative growth. Conclusively, the results indicate that root pruning is an effective practice controlling excessive shoot growth, and supplemental irrigation can improve fruit yield and quality in the root pruned trees. Therefore, a combination of root pruning and irrigation could be a promising alternative to control tree size and secure a stable fruit yield in pear orchards.

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Section: Resultssupporting

confidence: 91%

mentioning

confidence: 99%

Effect of root pruning and irrigation regimes on pear tree: growth, yield and yield components

Wang¹,

Travers²,

Bertelsen³

et al. 2014

Hort. Sci. (Prague)

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“…The experimental results indicated that severe root pruning of jujube trees could effectively decrease the length and number of primary branches. This meant there was a serious reduction of growth [14]. These effects were also reported by Schupp and Ferree [15].…”

Section: Discussionsupporting

confidence: 73%

Effect of root pruning on competitive ability in Chinese jujube tree

Yang¹,

Du²,

Yu³

et al. 2012

Fruits

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-Introduction. The Chinese jujube tree always presents some unfavorable performances because its vegetative growth is very vigorous. Our study was conducted to apply root pruning to test whether it can effectively inhibit the vigorous vegetative growth by regulating the competitive ability of the root system for water and nutrients. Materials and methods. For our experiment, roots were cut at three different distances from the trunk (light, moderate and severe root pruning) on both inter-row sides of jujube trees to the depth of 20 cm. Roots of control jujube trees were not pruned. Then we determined for three years the competitive indicators of Chinese jujube trees including the length, number and thickness of primary branches; photosynthetic characteristics and nutrient concentrations of leaves; hormone contents in the jujube head, flower number and fruiting percentage, yield, and fruit quality. Results and discussion. In the early stage after root treatment, root pruning decreased lots of indicators such as concentrations of nitrogen, phosphorus, and potassium in leaves, photosynthesis, transpiration, stomatal conductance, and intercellular CO 2 concentration of leaves, relative to the same indicators as the control group. With the gradual emergence of new roots, these indexes appeared to have adverse patterns with respect to those in the early stage after root pruning. Compared with the control, root pruning significantly decreased the length and number of primary branches and flower number, but thickened primary branches, enhanced fruiting percentage and increased the amount of ethylene release of the jujube head in the whole experiment. Fruit quality was improved with root pruning, as indicated by increases in vitamin C and total sugar and a decrease in titrable acidity. No effects of root pruning were noticed on yield. From our results, we conclude that the removal of the root system at a distance of three times the trunk diameter (severe pruning) from the trunk is the most effective in regulating the competitive ability of the Chinese jujube tree.China / Ziziphus / root pruning / plant response / performance testing / agronomic characters / fruits / quality Effet de la taille des racines sur les performances du jujubier chinois.Résumé -Introduction. Le jujubier chinois présente toujours certaines performances désavantageuses du fait de sa croissance végétative très vigoureuse. Notre étude a été menée pour tester la taille des racines afin de vérifier si elle peut freiner efficacement la croissance végétative en régulant la compétitivité du système racinaire pour l'eau et les nutriments. Matériel et méthodes. Pour notre expérimentation, les racines de jujubiers chinois ont été coupées à trois distances différentes à partir du tronc (taille légère, modérée et sévère des racines), de chaque côté entre les rangs de jujubiers, à 20 cm de profondeur. Les racines des jujubiers témoins n'ont pas été taillées. Nous avons ensuite suivi pendant trois années certains indicateurs de compétitivité du jujubier...

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“…Whereas the inhibition of shoot growth lasted for only few weeks or months in some experiments (Young and Werner, 1982;Geisler and Ferree, 1984b;Ferree, 1989;Schupp and Ferree, 1990;Dong et al, 1993), it was still visible in the following growing season (Autio and Greene, 1994;Khan et al, 1998) or even after four years in other experiments (Faby and Themann, 1996;Vercammen, 2005).…”

Section: Varying Effects Of Root Pruningmentioning

confidence: 95%

Root Pruning—A Poorly Understood Management Practice in Fruit Trees

Saure¹

2007

International Journal of Fruit Science

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Root pruning (RP) is a management practice intended to reduce excessive shoot growth resulting from a disturbed root/shoot-balance. It appears to function by limiting the gibberellin activity in fruit trees by interfering with endogenous growth control. In this way, not only shoot growth but also fruit development and flower-bud formation can be influenced by one common mechanism. The results are contradictory and often unpredictable. The prospects of RP as a management practice are rather limited.

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Root Pruning: A Valuable Alternative to Reduce the Growth of ‘Conferenc’

Cited by 18 publications

References 0 publications

Effect of root pruning and irrigation regimes on pear tree: growth, yield and yield components

Effect of root pruning and irrigation regimes on pear tree: growth, yield and yield components

Effect of root pruning on competitive ability in Chinese jujube tree

Root Pruning—A Poorly Understood Management Practice in Fruit Trees

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