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Substrate Properties, Vegetative Growth, Chlorophyll Content Index and Leaf Mineral Content of Sweet Cherry Maiden Trees as Affected by Rootstock and Plant Growth-Promoting Rhizobacteria

Author

Listed:
  • Šimun Kolega

    (Department of Ecology, Agronomy and Aquaculture, University of Zadar, Square of Prince Višeslav 9, HR-23000 Zadar, Croatia)

  • Tomislav Kos

    (Department of Ecology, Agronomy and Aquaculture, University of Zadar, Square of Prince Višeslav 9, HR-23000 Zadar, Croatia)

  • Marko Zorica

    (Department of Ecology, Agronomy and Aquaculture, University of Zadar, Square of Prince Višeslav 9, HR-23000 Zadar, Croatia)

  • Šime Marcelić

    (Department of Ecology, Agronomy and Aquaculture, University of Zadar, Square of Prince Višeslav 9, HR-23000 Zadar, Croatia)

  • Goran Fruk

    (Faculty of Agriculture, University of Zagreb, Svetošimunska Street 25, HR-10000 Zagreb, Croatia)

Abstract

Sweet cherry ( Prunus avium L.) is a valuable fruit crop for fresh consumption. Due to its early availability in season, it achieves relatively high prices on the market. Self-fertile cultivar Lapins is one of the world’s leading sweet cherry varieties. Intensive cherry production seeks for new technologies such as using more adaptable rootstocks and microbiological products that could help plants adopt more sustainable growth in different soils/climates. The aim of this work is to determine the substrate properties, vegetative growth, leaf chlorophyll and mineral content of maiden trees grafted on three different rootstocks due to the application of growth-promoting rhizobacteria. A pot experiment was carried out on one-year-old maiden trees of cv. Lapins grafted on SL 64, MaxMa 14 and Gisela 5 and grown in 12 L plant pots filled with commercial substrate. Plant growth-promoting rhizobacteria Azospirillum brasilense was added by watering the plants with 1.12 g L −1 per pot once a month (T 1 ) or every two months (T 2 ) from March to September with seven treatments in T 1 and four treatments in T 2 . At the same time, control (C) plants were watered with rainwater. Plant height, trunk circumference and leaf chlorophyll content index (CCI) were measured. In addition, shoot growth and internode number were measured in three development stages (BBCH 34, 39 and 91). The substrate and leaf samples were collected and analyzed in the laboratory in accordance with established procedures. Data were processed by ANOVA and the Tukey test. Results have showed that rootstock affected substrate electrical conductivity (EC); nitrate (NO 3 − ), phosphorous (P 2 O 5 ), calcium (Ca) and magnesium (Mg) content, including mineral nitrogen (N) content; tree height, circumference, shoot length and internode number; the leaf chlorophyll content index (CCI); and leaf potassium (K), Ca and Mg content. Furthermore, treatment significantly affected the CCI, average internode length, ammonia (NH 4 + ) and Ca content in the substrate and leaf N, Ca and Mg content. Rhizobacteria A. brasilense can be used as an additional biofertilizer in sustainable agricultural practices for obtaining healthier sweet cherry maiden trees, but microbial biotechnology rules must be respected.

Suggested Citation

  • Šimun Kolega & Tomislav Kos & Marko Zorica & Šime Marcelić & Goran Fruk, 2024. "Substrate Properties, Vegetative Growth, Chlorophyll Content Index and Leaf Mineral Content of Sweet Cherry Maiden Trees as Affected by Rootstock and Plant Growth-Promoting Rhizobacteria," Sustainability, MDPI, vol. 17(1), pages 1-22, December.
    • Handle: RePEc:gam:jsusta:v:17:y:2024:i:1:p:158-:d:1555401
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    References listed on IDEAS

    as
    1. Sławomir Głuszek & Lidia Sas-Paszt & Edyta Derkowska & Beata Sumorok & Mirosław Sitarek, 2021. "Influence of various biofertilizers on root growth dynamics in sweet cherry (Prunus avium L.) cv. 'Vanda'," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 48(3), pages 105-116.
    2. Krzysztof Rutkowski & Grzegorz P. Łysiak, 2023. "Effect of Nitrogen Fertilization on Tree Growth and Nutrient Content in Soil and Cherry Leaves ( Prunus cerasus L.)," Agriculture, MDPI, vol. 13(3), pages 1-23, February.
    3. T. Milošević & N. Milošević & I. Glišić & R. Nikolić & J. Milivojević, 2015. "Early tree growth, productivity, fruit quality and leaf nutrients content of sweet cherry grown in a high density planting system," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 42(1), pages 1-12.
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