Seasonal Changes in Macronutrients in the Leaves and Fruit of Kiwiberry: Nitrogen Level and Cultivar Effects

Stefaniak, Jan; Stasiak, Agnieszka; Latocha, Piotr; Łata, Barbara

doi:10.1080/00103624.2019.1689255

Cited by 7 publications

(14 citation statements)

References 41 publications

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“…In contrast, the decrease in P and K leaf content varied within the range 24–30 and 5–13%, respectively. These increases/decreases were statistically proven [ 27 ].…”

Section: Resultsmentioning

confidence: 92%

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Growing Season, Cultivar, and Nitrogen Supply Affect Leaf and Fruit Micronutrient Status of Field-Grown Kiwiberry Vines

Stefaniak

Łata

2022

Plants

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The N uptake can affect kiwiberry yield and quality; however, the relationship between an increasing N dose and micronutrient accumulation in leaves and fruit is still to be elucidated. Interrelationships between essential nutrients are one of the most important issues in terms of effectiveness in plant mineral nutrition. A pattern in leaf nutrient accumulation throughout the growing period is required to indicate a suitable sampling time for the purpose of nutrient diagnostics and controlled plant feeding. The experiment was conducted on two commercially available cultivars of kiwiberry, ‘Weiki’ and ‘Geneva’, during the 2015–2016 growing seasons with an increasing soil N fertility (30–50–80 mg N kg−1 soil DW) to test the relationship between soil N level and leaf/fruit micronutrient concentration. The leaf Zn, Cu, Fe, and Mn concentrations significantly increased with a higher N supply in ‘Geneva’, while in ‘Weiki’ only Mn increased. Leaf B, Fe, and Mn gradually increased throughout the growing season, while Cu decreased. Between mid-July and the beginning of August, the lowest fluctuations in the micronutrient contents were recorded. The effect of the growing season on leaf micronutrient accumulation was highly significant; except for Fe, significantly higher micronutrient levels were revealed in 2016. Compared to the leaves, the growing season effect was smaller in the case of fruit micronutrient concentrations. Irrespective of cultivar, the increase in N fertilization resulted in a higher fruit Mn concentration and was insignificant in the case of other micronutrients. The results indicate that the N dose may affect the accumulation of micronutrients within a certain range depending on the tissue type and the genotype.

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“…In contrast, the decrease in P and K leaf content varied within the range 24–30 and 5–13%, respectively. These increases/decreases were statistically proven [ 27 ].…”

Section: Resultsmentioning

confidence: 92%

“…In this study, changes in leaf nutrient accumulation in two kiwiberry cultivars as a result of increasing N doses were explored. In the first step, the relationship between the applied N dose and the leaf macronutrients content was established [ 27 ]. The increase in N dose reflected its increasing concentration in leaves ( Table 1 ).…”

Section: Resultsmentioning

confidence: 99%

Growing Season, Cultivar, and Nitrogen Supply Affect Leaf and Fruit Micronutrient Status of Field-Grown Kiwiberry Vines

Stefaniak

Łata

2022

Plants

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“…There are no data about the antioxidant metabolism in kiwiberry leaves. However, in the last few years, the fluctuation in leaf essential nutrients over growing seasons has been a topic of discussion [42,48]. Since A. arguta is a dioecious woody vine, leaf nutrient concentration varies not only by year or sampling date but also by plant gender and shoot type (determinate and indeterminate) for many tested nutrients [48].…”

Section: A Arguta Leaf Antioxidant Properties As a Function Of Cultivar And Harvest Timementioning

confidence: 99%

“…Weather data for the 2015-2017 seasons are presented in Figure 1. More detailed descriptions concerning experiment design, soil sampling and analysis, and mineral plant nutrition can be accessed in recently published works [12,42].…”

Section: Experimental Field Weather and Soil Conditionsmentioning

confidence: 99%

“…Harvest time also influences antioxidant enzyme activities in coffee leaves [26]. Leaf sampling is a common and efficient way to check plant nutrition status and verify fertilisation effectiveness [42]. However, leaves can also be tested to verify the overall plant condition [43] or can be considered as an extraordinary source of value-added bioactive compounds with pro-healthy potential [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Actinidia arguta Leaf as a Donor of Potentially Healthful Bioactive Compounds: Implications of Cultivar, Time of Sampling and Soil N Level

Stefaniak

Łata

2021

Molecules

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The aim of this study was to assess the enzymatic and non-enzymatic antioxidant status of kiwiberry (Actinidia arguta) leaf under different N regimes tested three times in field conditions during the 2015 growing season in two cultivars (‘Weiki’ and ‘Geneva’). Leaf total antioxidant capacity using ABTS, DPPH and FRAP tests was evaluated in the years 2015 to 2017, which experienced different weather conditions. Both cultivars exhibited a significant fall in leaf L-ascorbic acid (L-AA) and reduced glutathione (GSH) as well as global content of these compounds during the growing season, while total phenolic contents slightly (‘Weiki’) or significantly (‘Geneva’) increased. There was a large fluctuation in antioxidative enzyme activity during the season. The correlation between individual antioxidants and trolox equivalent antioxidant capacity (TEAC) depended on the plant development phase. The study revealed two peaks of an increase in TEAC at the start and end of the growing season. Leaf L-AA, global phenolics, APX, CAT and TEAC depended on the N level, but thiol compounds were not affected. Over the three years, TEAC decreased as soil N fertility increased, and the strength of the N effect was year dependent. The relationship between leaf N content and ABTS and FRAP tests was highly negative. The antioxidant properties of kiwiberry leaves were found to be closely related to the plant development phase and affected by soil N fertility.

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Revisiting global food production and consumption patterns by developing resilient food systems for local communities

2022

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Seasonal Changes in Macronutrients in the Leaves and Fruit of Kiwiberry: Nitrogen Level and Cultivar Effects

Cited by 7 publications

References 41 publications

Growing Season, Cultivar, and Nitrogen Supply Affect Leaf and Fruit Micronutrient Status of Field-Grown Kiwiberry Vines

Growing Season, Cultivar, and Nitrogen Supply Affect Leaf and Fruit Micronutrient Status of Field-Grown Kiwiberry Vines

Actinidia arguta Leaf as a Donor of Potentially Healthful Bioactive Compounds: Implications of Cultivar, Time of Sampling and Soil N Level

Revisiting global food production and consumption patterns by developing resilient food systems for local communities

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