<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The study presented herein concerns the effect of pre-sowing stimulation of scorzonera seeds with He–Ne laser on germination capacity, field emergence of seedlings and the content of chlorophylls and carotenoids. Seeds of scorzonera cv. ‘Duplex’, from harvests of various years, dis-played variable quality expressed by their germination capacity. They were subjected to pre-sowing stimulation with He–Ne laser light of the power of 40 mW and wavelength of 632.8 nm, surface power density of 5 mW·cm<sup>−2</sup> and different exposure times. Germination capacity on Petri dish test increased only in one lot of seeds after exposure for 1 and 5 min. Increase in seedling emergence in the field experiment in the result of laser treatment occurred only in one seed lot. One-min laser treatment increased contents of chlorophylls and carotenoids in 8-day cotyledons (laboratory test) and in the second true leaves (field experiment).</p></abstract>

The study presented herein concerns the effect of pre-sowing stimulation of scorzonera seeds with He–Ne laser on germination capacity, field emergence of seedlings and the content of chlorophylls and carotenoids. Seeds of scorzonera cv. ‘Duplex’, from harvests of various years, dis-played variable quality expressed by their germination capacity. They were subjected to pre-sowing stimulation with He–Ne laser light of the power of 40 mW and wavelength of 632.8 nm, surface power density of 5 mW·cm−2 and different exposure times. Germination capacity on Petri dish test increased only in one lot of seeds after exposure for 1 and 5 min. Increase in seedling emergence in the field experiment in the result of laser treatment occurred only in one seed lot. One-min laser treatment increased contents of chlorophylls and carotenoids in 8-day cotyledons (laboratory test) and in the second true leaves (field experiment).

Laser Light Stimulation Effects on <italic>S<sc>corzonera hispanica</sc></italic> L. Seeds Germination, Field Emergence and Photosynthetic Pigments Content

Department of Physics, University of Life Sciences, Akademicka 13, 20-950 Lublin, Poland

Department of Seed Sciences and Nursery, University of Life Sciences, Leszczyńskiego 58, 20-068 Lublin, Poland

Journal of Horticultural Research

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

Laser Light Stimulation Effects on  L. Seeds Germination, Field Emergence and Photosynthetic Pigments Content

The study presented herein concerns the effect of pre-sowing stimulation of scorzonera seeds with He–Ne laser on germination capacity, field emergence of...

Laser Light Stimulation Effects on Scorzonera hispanica L. Seeds Germination, Field Emergence and Photosynthetic Pigments Content

Published Online: Jul 27, 2016

Page range: 57 - 62

Received: Dec 01, 2015

Accepted: Feb 01, 2016

DOI: https://doi.org/10.1515/johr-2016-0007

Keywords
He–Ne laser light, seed quality, germination capacity, field emergence, photosynthetic pigments

© 2016 Agata Dziwulska-Hunek et al., published by De Gruyter Open

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

Laser Light Stimulation Effects on Scorzonera hispanica L. Seeds Germination, Field Emergence and Photosynthetic Pigments Content

Published Online: Jul 27, 2016

Page range: 57 - 62

Received: Dec 01, 2015

Accepted: Feb 01, 2016

DOI: https://doi.org/10.1515/johr-2016-0007

KeywordsHe–Ne laser light, seed quality, germination capacity, field emergence, photosynthetic pigments

© 2016 Agata Dziwulska-Hunek et al., published by De Gruyter Open

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

Keywords
He–Ne laser light, seed quality, germination capacity, field emergence, photosynthetic pigments