Kale seed priming with red seaweed biostimulant

Kale seed priming with red seaweed biostimulant

Seed priming is a treatment that can contribute to improve seed physiological potential and increase its tolerance to abiotic stresses. Thus, this work evaluated the effect of kale seed priming with red seaweed biostimulant on physiological seed potential, seed health and tolerance to high temperatu...

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Bibliographic Details
Published in:Advances in horticultural science Vol. 35; no. 2; pp. 111 - 118
Main Authors: Ternus, F. Lemes, Silva, V. Neumann, Milanesi, P. Mendes, Tortelli, B
Format: Journal Article
Language:English
Published: Florence Firenze University Press 01-06-2021
Firenze University Press Università degli Studi di Firenze
Subjects:
Algae
Analysis
Bioactive compounds
Brassica oleraceae var. acephala
Chromatography
Design of experiments
Experimental design
Germination
High temperature
Imbibition
Physiological aspects
Physiological effects
Physiology
Plant growth
Priming
Rhodophyta
Seaweeds
Seed germination
Seedlings
Seeds
Solieria
Solieria sp
Temperature tolerance
thermal stress
Variance analysis
Vegetables
Brazil
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Summary:Seed priming is a treatment that can contribute to improve seed physiological potential and increase its tolerance to abiotic stresses. Thus, this work evaluated the effect of kale seed priming with red seaweed biostimulant on physiological seed potential, seed health and tolerance to high temperature at germination. The experimental design was completely randomised, with a 2´x4 factorial scheme. Treatments consisted of doses of 0, 0.25, 0.50 and 1.0 mL L–1 of red algae Solieria sp. biostimulant, and temperatures of 20 and 30°C. The biostimulant used was subjected to chromatographic analysis to detect bioactive compounds. Seed imbibition curves were used to determine priming duration procedure. Treatments effects were evaluated by seed health, germination, root and shoot length, and dry mass, under ideal (20°C) and stress (30°C) temperatures. The results were submitted to analysis of variance, Tukey’s test (temperatures) and regression (doses). The 22-h imbibition period is adequate for kale seed priming with Solieria sp. biostimulant. Kale seed priming with Solieria sp. does not interfere with seed health. The temperature of 30°C reduces kale seed germination index, as seedling root growth. The use of Solieria sp. biostimulant does not promote kale seed physiological potential.
ISSN:0394-6169
1592-1573
DOI:10.36253/ahsc-10101