Original scientific paper

https://doi.org/10.33128/ag.84.1-2.3

The application of biostimulants in paulownia cultivation

Božica Japundžić-Palenkić orcid.org/0000-0002-4693-8438 ; Sveučilište u Slavonskom Brodu, Biotehnički odjel, Slavonski Brod, Hrvatska
Marijana Krišto ; Regionalni Centar za biotehnološka istraživanja i razvoj Brodsko-posavske županije, Slavonski Brod, Hrvatska
Nataša Romanjek Fajdetić ; Sveučilište u Slavonskom Brodu, Biotehnički odjel, Slavonski Brod, Hrvatska
Mihaela Blažinkov orcid.org/0000-0001-6901-2091 ; Sveučilište u Slavonskom Brodu, Biotehnički odjel, Slavonski Brod, Hrvatska
Monika Marković orcid.org/0000-0002-8742-6922 ; Fakultet agrobiotehničkih znanosti Sveučilište Josipa Jurja Strossmayera u Osijeku, Osijek, Hrvatska
Robert Benković orcid.org/0000-0001-6116-8470 ; Sveučilište u Slavonskom Brodu, Biotehnički odjel, Slavonski Brod, Hrvatska

Abstract

Paulownia is an exotic, ornamental and decorative woody plant originating from China, and in terms of agrotechnical cultivation and use, it is important for plant biomass production. The plant characteristics are rapid germination, plant growth, development of large amounts of leaf and woody mass in a short vegetation period. Due to fast growth and the formation of uniform thickness trees, paulownia is suitable for processing and one of the basic raw materials in the wood industry, but it is also suitable for energy production. However, in paulownia initial stages of growth and development, sensitivity to increased humidity was determined, which causes the appearance of diseases, pests and plant decay. In order to overcome the potential stress and sensitivity to the water regime in initial stages of transplants development, the use of biostimulants is recommended. Biostimulants are physiologically active substances that help in plant growth and development, reduce the harmful consequences of drought, freezing, mechanical and chemical damage and the consequences of plant infections. The aim of this study was to determine the application impact of biostimulants Delfan Plus® in different time periods on the growth and development of hybrid ʹShan Tongʹ (Paulownia fortunei × Paulownia tomentosa) transplants from "in vitro" production. In study, transplants were treated with the biostimulants in the amount of 8 ml/10 l of water. Plants were treated in three different variants: treating every 7, 14, 21 days and the control (without treating) was performed. During the monitoring of transplants growth and development in a period of eleven weeks, the height of the plant (cm), number of leaves and the length of the roots (cm) were measured. The research results determined the largest increase in the height of the plants, as well as a larger number of leaves after biostimulants treating used every 14 days. These transplants had a firmer and more developed roots in contrast seedlings in other treatments. The best utilization of all biostimulant elements was observed on transplants that were healthy looking without the appearance of diseases and pests. The obtained results indicate that use of biostimulants enhance process of growth of paulownia transplants intended for commercial purpose madding the process easier and faster.

Keywords

paulownia; biomass; transplants; biostimulants

Hrčak ID:

291058

URI

https://hrcak.srce.hr/291058

Publication date:

4.1.2023.

Article data in other languages: croatian

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