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Agriculture, Vol. 16 No. 1, 2010.

Original scientific paper

STRAWBERRY (FRAGARIA X ANANASSA DUCH) LEAF ANTIOXIDATIVE RESPONSE TO BIOSTIMULATORS AND REDUCED FERTILIZATION WITH N AND K

Marija Špoljarević orcid id orcid.org/0000-0002-9052-5307 ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Ivna Štolfa ; Department of Biology, J.J. Strossmayer University of Osijek, Osijek, Croatia
Miroslav Lisjak orcid id orcid.org/0000-0003-2018-4903 ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Aleksandar Stanisavljević ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Tomislav Vinković ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Dejan Agić ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Nada Parađiković ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Tihana Teklić orcid id orcid.org/0000-0001-8452-3965 ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Meri Engler ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia
Katica Klešić ; Faculty of Agriculture, J.J.Strossmayer University of Osijek, Osijek, Croatia

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Abstract

Strawberry cultivar Elsanta was grown in peat based substrate in a green house. Full dose and 50% reduced nitrogen and potassium fertilization were applied during fruit bearing period in spring, along with biostimulators Viva®, Megafol® and their combination. The specific activities of guaiacol peroxidase (GPXs; EC 1.11.1.7), catalase (CATs; EC 1.11.1.6), ascorbate peroxidase (APXs; EC 1.11.1.11) and glutathione reductase (GRs; EC 1.6.4.2) in strawberry leaf were stimulated by biostimulators and reduced fertilization. The strongest link seen here was between the enzymes of ascorbate-glutathione cycle (APXs and GRs), which were positively related to trifoliate leaf fresh mass (TLFM). The highest TLFM was observed in
Megafol® treated plants.

Keywords

antioxidative activity; ascorbate peroxidase; biostimulators; catalase; fertilization; Fragaria x ananassa Duch; glutathione reductase; guaiacol peroxidase; leaf; strawberry

Hrčak ID:

53787

URI

https://hrcak.srce.hr/53787

Publication date:

10.6.2010.

Article data in other languages: croatian

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