<abstract xmlns="http://www.w3.org/1999/xhtml">The correlation between the sowing value of primed China aster seeds represented by germination percentage (GP), mean germination time (MGT), germination uniformity expressed as the time between 25% and 75% of germinated seeds (T75<bold>-</bold>25) and some selected physiological characteristics - total activity of dehydrogenases (TAD), activity of catalase (AC), activity of cell cycle (ACC) and electrolyte leakage (EL) has been analysed in order to find useful markers of biological quality of seeds. To achieve this objective, analyses of effects of three methods of water supply to seeds viz. - hydroconditioning by soaking in excessive amount of water (M1), hydroconditioning by soaking in limited amount of water (M2) or hydroconditioning by contact with solid carrier of water - matriconditioning (M3), three levels (30.0, 35.0 and 40.0%) of seed moisture content (m.c.) and three incubation periods (1, 8 and 10 days) during priming and hence their influence on germination properties (GP, MGT, T75<bold>-</bold>25) in comparison with TAD, AC, ACC and EL were determined. The results showed that MGT and T75<bold>-</bold>25 were correlated with TAD, AC, ACC and EL, irrespective of their priming method and sowing value. Therefore, all the investigated physiological/biochemical parameters of seed quality can be used as markers of germinability and sowing value reached by primed China aster seeds. The results also proved that, irrespective of the water supply method applied, hydration of seeds up to 37.5% m.c., and their incubation at 20 °C for 8 days, followed by drying to their initial moisture content, increased to the greatest extent the speed and uniformity of seed germination and their physiological activity.</abstract>

The correlation between the sowing value of primed China aster seeds represented by germination percentage (GP), mean germination time (MGT), germination uniformity expressed as the time between 25% and 75% of germinated seeds (T75-25) and some selected physiological characteristics - total activity of dehydrogenases (TAD), activity of catalase (AC), activity of cell cycle (ACC) and electrolyte leakage (EL) has been analysed in order to find useful markers of biological quality of seeds. To achieve this objective, analyses of effects of three methods of water supply to seeds viz. - hydroconditioning by soaking in excessive amount of water (M1), hydroconditioning by soaking in limited amount of water (M2) or hydroconditioning by contact with solid carrier of water - matriconditioning (M3), three levels (30.0, 35.0 and 40.0%) of seed moisture content (m.c.) and three incubation periods (1, 8 and 10 days) during priming and hence their influence on germination properties (GP, MGT, T75-25) in comparison with TAD, AC, ACC and EL were determined. The results showed that MGT and T75-25 were correlated with TAD, AC, ACC and EL, irrespective of their priming method and sowing value. Therefore, all the investigated physiological/biochemical parameters of seed quality can be used as markers of germinability and sowing value reached by primed China aster seeds. The results also proved that, irrespective of the water supply method applied, hydration of seeds up to 37.5% m.c., and their incubation at 20 °C for 8 days, followed by drying to their initial moisture content, increased to the greatest extent the speed and uniformity of seed germination and their physiological activity.

Rapid Evaluation of Germinability of Primed China Aster (Callistephus Chinensis Ness.) Seeds with Physiological and Biochemical Markers

Research Institute of Horticulture, ul. Konstytucji 3 Maja 1/3, 96-100 Skierniewice, Poland

University of Lodz, Department of Ecophysiology and Plant Development, Banacha 12/16, 90-232 Lodz, Poland

Fytagoras, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, the Netherlands

Institute of Biology Leiden, Leiden University, Sylviusweg 72, 2333 BE Leiden, the Netherlands

Journal of Horticultural Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The correlation between the sowing value of primed China aster seeds represented by germination percentage (GP), mean germination time (MGT), germination...

Rapid Evaluation of Germinability of Primed China Aster (Callistephus Chinensis Ness.) Seeds with Physiological and Biochemical Markers

Pubblicato online: 03 mar 2015

Pagine: 5 - 18

Ricevuto: 20 ago 2014

Accettato: 03 ott 2014

DOI: https://doi.org/10.2478/johr-2014-0017

© by Bogumiła Badek

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.