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Polska Bibliografia Naukowa

Issue 17 (1) 2018 pp. 97-106

Alina Kałużewicz1, Renata Bączek-Kwinta2, Włodzimierz Krzesiński1, Tomasz Spiżewski1, Anna Zaworska1

1 Department of Vegetable Crops, Faculty of Horticulture and Landscape Architecture, Poznań University of Life Sciences, Dąbrowskiego, Poznań, Poland
2
Department of Physiology, Faculty of Agriculture and Economics, University of Agriculture in Krakow, ul. Podłużna, Kraków, Poland

EFFECT OF BIOSTIMULANTS ON CHLOROPHYLL FLUORESCENCE PARAMETERS OF BROCCOLI (Brassica oleracea var. Italica) UNDER DROUGHT STRESS AND REWATERING

Abstract:

The aim of the research was to determine the influence of biostimulants amino acids and amino acids + Ascophyllum nodosum filtrate on two broccoli cultivars ‘Agassi’ and ‘Tiburon’ and their response to soil drought. The plants were watered with Ascophyllum nodosum filtrate before planting and sprayed with amino acids after planting three times. Chlorophyll fluorescence measurements were performed before, during and after stress. They showed a considerable difference in cultivars’ response to stress, with ‘Agassi’ being more sensitive. Application of biostimulants enhanced the tolerance to drought stress. Maximum photochemical efficiency of PSII was unchanged, whereas the quantum yield of electron transport and photochemical fluorescence quenching values increased and the non-photochemical fluorescence quenching decreased. Moreover, the apparent photosynthetic electron transport rate rose. Chlorophyll content index was affected by the cultivar and application of biostimulants.

pub/17_1_97.pdf Full text available in Adobe Acrobat format:
http://www.hortorumcultus.actapol.net/volume17/issue1/17_1_97.pdf
Keywords: amino acids, Ascophyllum nodosum filtrate, quantum yield of electron transport, fluorescence quenching, chlorophyll

DOI: 10.24326/asphc.2018.1.9

For citation:

MLA Kałużewicz, Alina, et al. "EFFECT OF BIOSTIMULANTS ON CHLOROPHYLL FLUORESCENCE PARAMETERS OF BROCCOLI (Brassica oleracea var. Italica) UNDER DROUGHT STRESS AND REWATERING." Acta Sci.Pol. Hortorum Cultus 17.1 (2018): 17. DOI: 10.24326/asphc.2018.1.9
APA Kałużewicz, A., Bączek-Kwinta, R., Krzesiński, W., Spiżewski, T., & Zaworska, A. (2018). EFFECT OF BIOSTIMULANTS ON CHLOROPHYLL FLUORESCENCE PARAMETERS OF BROCCOLI (Brassica oleracea var. Italica) UNDER DROUGHT STRESS AND REWATERING. Acta Sci.Pol. Hortorum Cultus 17 (1), 17. DOI: 10.24326/asphc.2018.1.9
ISO 690 KAłUżEWICZ, Alina, et al. EFFECT OF BIOSTIMULANTS ON CHLOROPHYLL FLUORESCENCE PARAMETERS OF BROCCOLI (Brassica oleracea var. Italica) UNDER DROUGHT STRESS AND REWATERING. Acta Sci.Pol. Hortorum Cultus, 2018, 17.1: 17. DOI: 10.24326/asphc.2018.1.9
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