Flowering, Quality and Nutritional Status of Tropaeolum majus L. ‘Spitfire’ after Application of Trichoderma spp

Roman Andrzejak, Beata Janowska (), Agnieszka Rosińska, Sylwia Skazińska and Orsolya Borsai
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Roman Andrzejak: Department of Phytopathology, Seed Science and Technology, Faculty of Agronomy, Horticulture and Biotechnology, Poznań University of Life Sciences, Dąbrowskiego 159, 60-594 Poznań, Poland
Beata Janowska: Department of Ornamental Plants, Dendrology and Pomology, Faculty of Agronomy, Horticulture and Biotechnology, Poznań University of Life Sciences, Dąbrowskiego 159, 60-594 Poznań, Poland
Agnieszka Rosińska: Department of Phytopathology, Seed Science and Technology, Faculty of Agronomy, Horticulture and Biotechnology, Poznań University of Life Sciences, Dąbrowskiego 159, 60-594 Poznań, Poland
Sylwia Skazińska: Department of Phytopathology, Seed Science and Technology, Faculty of Agronomy, Horticulture and Biotechnology, Poznań University of Life Sciences, Dąbrowskiego 159, 60-594 Poznań, Poland
Orsolya Borsai: Department of Horticulture and Landscape, Faculty of Horticulture and Business in Rural Development, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania

Sustainability, 2024, vol. 16, issue 11, 1-14

Abstract: The aim of this study was to compare the influence of three species of fungi of the Trichoderma genus ( T. aureoviride Rifai—Ta8, T. hamatum /Bonord/Bainier—Th15, and T. harzianum Rifai—Thr2) on the quality, flowering, and nutritional status of Tropaeolum majus L. ‘Spitfire’. Early flowering was only influenced by T. hamatum , which delayed it by 6 days. T. aureoviride , T. hamatum , and T. harzianum stimulated the flowering of the ‘Spitfire’ cultivar but did not affect the size of the flowers. The plants treated with T. harzianum after being planted in pots flowered the most abundantly. Trichoderma spp. caused the plants to grow more intensively, producing longer and more leafy shoots with a greater number of offshoots. Trichoderma spp. stimulated the uptake of macronutrients, except for phosphorus (P). In the case of calcium (Ca) and sodium (Na), this phenomenon was only observed in plants treated with T. aureoviride and T. hamatum , and for magnesium (Mg), only when T. hamatum was applied to sown seeds. As for the developed root systems, as far as the micronutrients are concerned, Trichoderma spp. stimulated the uptake of zinc (Zn) and manganese (Mn). Apart from that, there was a higher iron (Fe) content in the plants treated with T. harzianum on both dates and T. aureoviride after planting the plants in pots.

Keywords: biostimulants; growth and flowering; nasturtium; micro- and macroelements (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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