Influence of time of root pruning on growth, mineral nutrition, net photosynthesis and transpiration of young apple trees

Schupp, James R.; Ferree, D. C.

doi:10.1016/0304-4238(90)90053-h

Cited by 40 publications

(29 citation statements)

References 8 publications

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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%

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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%

“…Root pruning was proven as one of such alternatives to control and regulate the vegetative growth of fruit trees (Geisler, Ferree 1984;Schupp, Ferree 1990). Poni et al (1992) reported that root pruning was very effective in reducing shoot growth for potted grape, pear and apple trees.…”

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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“…Root pruning is a common technique that can reduce vegetative growth of fruit trees (Geisler and Ferree, 1984;Schupp and Ferree, 1990;Asín et al, 2007). It not only assists in dwarfing, but also stimulates the emergence of new roots necessary to sustain growth (Yashiroda, 1960).…”

Section: Introductionmentioning

confidence: 99%

Effects of root pruning on the growth and rhizosphere soil characteristics of short-rotation closed-canopy poplar

Xing

et al. 2012

For. syst.

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When poplar trees planted at a high density are canopy-closed in plantation after 4-5 years of growth, the roots of adjacent trees will inevitably intermingle together, which possibly restricts the nutrient uptake by root system. Root pruning might stimulate the emergence of fine roots and benefit the tree growth of short-rotation poplar at the stage of canopy closing. The aim of this study is to evaluate the effects of root pruning on DBH (diameter at breast height, 1.3 m), tree height, nutrients (N, P and K) and hormones (indoleacetic acid and cytokinin) in poplar leaves, gas exchange variables (photosynthetic rate and stomatal conductance), and rhizosphere soil characteristics. Field experiment was carried out with four-yearold poplar (Populus × euramericana cv. 'Neva') planted in a fluvo-aquic loam soil in Shandong province, China in early April, 2008. Three root pruning treatments (severe, moderate and light degree) were conducted at the distances of 6, 8 and 10 times DBH on both inter-row sides of the trees to the depth of 30 cm, respectively. The results showed that the growth performance was obtained in the following order of treatments: moderate > light = control > severe. In the rhizophere soil, moderate and light pruning increased the microbial populations, enzymatic activities, and the concentrations of available N, P, K and organic matter. Generally, root pruning to improve tree growth and rhizosphere soil fertility can be recommended in canopy-closed poplar plantation. The appropriate selection of root pruning intensity is a pivotal factor for the effectiveness of this technique.Key words: root pruning method; poplar plantation; growth performance; rhizosphere soil fertility. ResumenEfectos de la poda de raíces sobre el crecimiento y las características de la rizosfera del suelo de los álamos de corta rotación en la etapa del dosel cerradoCuando los chopos plantados a alta densidad cierran el dosel de copas después de 4-5 años, las raíces de árboles adyacentes inevitablemente se mezclan, lo que posiblemente limita la absorción de nutrientes por el sistema radicular. La poda de raíces podría estimular la aparición de raíces finas y beneficiar al crecimiento de los álamos de corta rotación en la etapa del dosel cerrado. El objetivo de este estudio es evaluar los efectos de la poda de raíces en el DAP (diámetro a la altura del pecho, 1,3 m), altura de los árboles, los nutrientes (N, P y K) y las hormonas (ácido indolacético y citoquininas) en las hojas, variables de intercambio gaseoso (tasa de fotosíntesis y conductancia estomática) y característi-cas de la rizosfera del suelo. El experimento de campo se llevó a cabo con chopos (Populus × euramericana cv. 'Neva') de cuatro años de edad plantadas en un suelo franco fluvo-ácuico en la provincia de Shandong, China, a principios de abril de 2008. Se efectuaron tres tratamientos de poda de raíces (severa, moderada y el grado de luz) a distancias de 6, 8 y 10 veces DAP en ambos lados entre las filas de los árboles a la profundidad de 30 cm. Los res...

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“…Alterations in the carbohydrate reserve status of the tree can affect spring regrowth markedly (Worley 1979;Abusrewil et al 1983;Larsen et al 1983). Root pruning has been shown to reduce vegetative growth in various plant species (Alexander & Maggs 1971;Geisler & Ferree 1984;Schupp & Ferree 1990). Khan et al (1998b) found the trees used in this trial had height reductions in the second season of 12% as well as reductions in shoot length, number, and diameter as a consequence of root pruning.…”

Section: Introductionmentioning

confidence: 79%

Root pruning of apple trees grown at ultra‐high density affects carbohydrate reserves distribution in vegetative and reproductive growth

Khan

McNeil

Samad

1998

New Zealand Journal of Crop and Horticultural Science

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Five-year-old 'Braeburn', 'Royal Gala', 'Oregon Red Delicious', 'Splendour', 'Granny Smith', and 'Fuji'/MM. 106 apple (Malus domestica Borkh.) trees growing under an ultra-high density planting system (20 000 trees/ha) were root pruned in September 1994. Trees were pruned to a depth of 30 cm with a sharp spade along both sides of the row and between trees, 20 and 30 cm from the trunk. Root pruning resulted in decreased tree height, shoot length, branch number, trunk and shoot diameter compared to the control. Root pruning increased floriferousness e.g., the number of flowering spurs in subsequent season. Total carbohydrates (TCHO) and TCHO concentration in tissues of the trees were altered by root pruning treatments. Elevated shoot TCHO concentration was associated with higher flower initiation (flowering spurs per tree in the following season) whereas higher root TCHO was associated with higher total yield. The mean value for root reserves in August 1995 for the control trees was 111 g/plant and 84 g/plant for the 20 cm root-pruned trees. Fruit yields were 4.1 and 2.6 t/ha respectively. Total yield and average fruit size were reduced by root pruning. The data suggest that root pruning created a lack of balance between reproductive characters and potential yield. This may be explained by reduced shoot leaf area (fewer bourse and shoot leaves) limiting carbohydrate supply and the effects of root pruning on TCHO, yield, and flowering are consistent with the predictions of an earlier model. H97063

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Influence of time of root pruning on growth, mineral nutrition, net photosynthesis and transpiration of young apple trees

Cited by 40 publications

References 8 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

Effects of root pruning on the growth and rhizosphere soil characteristics of short-rotation closed-canopy poplar

Root pruning of apple trees grown at ultra‐high density affects carbohydrate reserves distribution in vegetative and reproductive growth

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