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

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

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 pero...

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Bibliographic Details
Main Authors: Marija Špoljarević, Ivna Štolfa, Miroslav Lisjak, Aleksandar Stanisavljević, Tomislav Vinković, Dejan Agić, Nada Parađiković, Tihana Teklić, Meri Engler, Katica Klešić
Format: Article
Language:English
Published: Faculty of Agrobitechnical Sciences Osijek 2010-06-01
Series:Poljoprivreda
Subjects:
antioxidative activity
ascorbate peroxidase
biostimulators
catalase
fertilization
Fragaria x ananassa Duch
glutathione reductase
guaiacol peroxidase
leaf
strawberry
Online Access:http://poljoprivreda.pfos.hr/upload/publications/poljoprivreda-16-1-9.pdf
Description
Summary: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.
ISSN:1330-7142
1848-8080

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