Effect of Fruit Load on Leaf Nutrient Content of Apple Trees

Sadowski, A.; Kepka, Miloslav; Lenz, F.; Engel, G.

doi:10.17660/actahortic.1995.383.7

Cited by 11 publications

(8 citation statements)

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“…K was higher in leaves of "non bearing" 'Mutsu' trees but lower in leaves of "non bearing" 'Summerred' trees ( Table 3). It is confirmed that earlier finding that the absence of fruit has not consequent effect on leaf K (Sadowski et al, 1995).…”

Section: Leaf Analysissupporting

confidence: 92%

“…Leaves of non bearing trees contained lower nitrogen, phosphorus and potassium in 2007 ( Table 2). This result is similarly to those published by Faust, 1989;Buwalda andLenz, 1992 andSadowski et al, 1995. Leaves collected at full bloom from "non bearing" trees contained lower phosphorous but higher nitrogen and potassium in 2008. Later, "non bearing" leaves collected at standard sampling date contained higher nitrogen and phosphorous than "bearing" trees.…”

Section: Leaf Analysissupporting

confidence: 87%

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Effects of irregular cropping on nutrient uptake and status of apple trees

Nagy

Szabó

Soltész

et al. 2010

Int. j. hortic. sci.

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Produce of harmonic nutrient balance and status of trees is basic task of growers for qualified fruit growing. The role of crop loaded is essential to grow the productivity of trees without nutrient disorder or other nutritional problems. To reduce the frequency of biennial bearing there are some ways (site and species selection, crop regulation, irrigation, nutrition etc.) from them one is the best easy way the proper site and species oriented nutrition. Sometimes the responsible for irregular cropping is the insufficient fertilization. Observed irregular cropping at two apple cultivars (Malus domestica Borkh., cv. ‘Summerred’ and cv. ‘Mutsu’) in an integrated apple orchard at Hajdúnánás-Tedej, in 2007 resulted a chance to determine nutritional status of “bearing” and “non bearing” trees and investigate the effects of irregular cropping on nutrient uptake and possibilities of correction. Our results pointed out that irregularity is connection on nutrition status of trees. Irregular cropping results in insufficient nutrient uptake and disharmony of nutrients. For this reason, the establishment of nutrient status of “non bearing” trees is could permit a chance to correct and improve the nutrient supply of trees which help to breakdown the vicious circle of irregularity.

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Section: Leaf Analysissupporting

confidence: 92%

Section: Leaf Analysissupporting

confidence: 87%

Effects of irregular cropping on nutrient uptake and status of apple trees

Nagy

Szabó

Soltész

et al. 2010

Int. j. hortic. sci.

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“…The largest percentage differences between the two cultivars occurred for foliar K, Ca, Mg, Cu, Mn, and Zn. Differences in optimal foliar nutrient concentrations are common among cultivars (Jentsch and Eaton, 1982/83;Sadowski et al, 1995;Singha et al, 1982;Tagliavini et al, 1992). Foliar nutrient values obtained from this two-cultivar study were comparable to those in Table 1.…”

Section: Resultssupporting

confidence: 69%

“…The range of foliar N in Table 1 is higher than what Downloaded by [University of Southern Queensland] at 23:33 03 October 2014 is considered normal for apples and pears. These N levels are probably on the high side as these values were obtained from two "on" (higher yielding) years and one "off" (lower yielding) year, and foliar N is generally higher in the "on" years (Sadowski et al, 1995). The saskatoon tends to exhibit some degree of alternate bearing, with certain cultivars (i.e., 'Smoky') expressing this trait more than others (unpublished data).…”

Section: Resultsmentioning

confidence: 89%

Development of Standard Concentrations of Foliar Nutrients for Saskatoon

Zatylny

St-Pierre

2006

Journal of Plant Nutrition

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“…Nutrient content in apple leaves is a feature of a specific cultivar; it is influenced, within certain limits, by the rootstocks (Ponchia et al 1997), by soil and climatic conditions (Wehunt, Purvis 1954;Blažek, Hlušičková 2007), by the phase of vegetation (Sadowski et al 1995;Weinbaum et al 2001;Holb et al 2009), and particularly by the orchard management practices, i.e. irrigation and fertilization (Hipps 1997;Nagy, Holb 2006).…”

mentioning

confidence: 99%

Relationship between tree nutritional status and apple quality

Jivan

Sala

2014

Hortic. Sci.

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Jivan C., Sala F., 2014. Relationship between tree nutritional status and apple quality. Hort. Sci. (Prague), 41: 1-9.Development of prediction models for the quality of apples is useful in guiding fruit tree nutrition and in optimising fruit management. The interrelationships between the leaf nutrient contents and some fruit quality indices were studied in five apple cultivars -Generos, Florina, Delicios de Voinesti, Jonathan and Pionier. Highly significant relationships between N and Fe contents (R 2 = 0.734; P < 0.01) and between Cu and K (R 2 = 0.702; P < 0.01) were found. Acidity was negatively correlated with soluble solids content in the cvs Generos, Delicios de Voinesti and Jonathan, whereas the respective correlation in the apple cv. Pionier was positive. In cv. Florina fruits no significant correlation was found between acidity and soluble solids content. Among macroelements, nitrogen had a considerable contribution to fruit acidity and this allows to predict this index with a high degree of safety (R 2 = 0.690; RMSEP N = 0.105). Microelements have a lower contribution to acidity and a higher one to the sugar accumulation; in case of Zn are R 2 = 0.809; RMSEP Zn = 4.250.

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Effect of Fruit Load on Leaf Nutrient Content of Apple Trees

Cited by 11 publications

References 0 publications

Effects of irregular cropping on nutrient uptake and status of apple trees

Effects of irregular cropping on nutrient uptake and status of apple trees

Development of Standard Concentrations of Foliar Nutrients for Saskatoon

Relationship between tree nutritional status and apple quality

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