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Volume 9
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10.3390/plants9060675
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Article

Effect of Microalgal Extracts from Chlorella vulgaris and Scenedesmus quadricauda on Germination of Beta vulgaris Seeds

by
Ivana Puglisi
1,
Valeria Barone
2,
Ferdinando Fragalà
1,
Piergiorgio Stevanato
2,
Andrea Baglieri
1,* and
Alessandro Vitale
1
1
Department of Agriculture, Food and Environment, University of Catania, 95123 Catania, Italy
2
Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, 35020 Padova, Italy
*
Author to whom correspondence should be addressed.
Plants 2020, 9(6), 675; https://doi.org/10.3390/plants9060675
Submission received: 15 April 2020 / Revised: 20 May 2020 / Accepted: 24 May 2020 / Published: 26 May 2020
(This article belongs to the Special Issue Selected Plant-Related Papers from the First Joint Meeting on Soil and Plant System Sciences (SPSS 2019) “Natural and Human-induced Impacts on the Critical Zone and Food Production”)
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Abstract

Sugar beet (Beta vulgaris subsp. vulgaris) is a commercially important biennial root crop, providing about 20% of the world’s annual sugar production. Seed quality is crucial for adequate plant growth and production. The productivity of sugar beet is often limited by heterogeneous germination in the field. In order to improve the sugar beet germination process, the effect of different concentrations of microalgal extracts from Chlorella vulgaris or Scenedesmus quadricauda was investigated by calculating several indices useful to evaluate the germination performance. Moreover, root morphological analysis was performed by using WinRHIZO software. B. vulgaris seeds were soaked with five different concentrations (from 0.1 to 10 mg Corg/L) of the microalgal extracts, considering the amount of organic carbon (Corg) in each extract. Our results show that these microalgal extracts exert a positive effect on sugar beet germination, by increasing efficiency and regularity of this critical process for B. vulgaris seeds. The best results, in terms of germination indices as well as root morphological traits, were reached by using C. vulgaris extract at the concentrations C2 (1 mg Corg/L) and C3 (2 mg Corg/L).
Keywords: microalgae; germination percentage; mean daily germination; seedling vigor index; total root length; priming treatment microalgae; germination percentage; mean daily germination; seedling vigor index; total root length; priming treatment

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MDPI and ACS Style

Puglisi, I.; Barone, V.; Fragalà, F.; Stevanato, P.; Baglieri, A.; Vitale, A. Effect of Microalgal Extracts from Chlorella vulgaris and Scenedesmus quadricauda on Germination of Beta vulgaris Seeds. Plants 2020, 9, 675. https://doi.org/10.3390/plants9060675

AMA Style

Puglisi I, Barone V, Fragalà F, Stevanato P, Baglieri A, Vitale A. Effect of Microalgal Extracts from Chlorella vulgaris and Scenedesmus quadricauda on Germination of Beta vulgaris Seeds. Plants. 2020; 9(6):675. https://doi.org/10.3390/plants9060675

Chicago/Turabian Style

Puglisi, Ivana, Valeria Barone, Ferdinando Fragalà, Piergiorgio Stevanato, Andrea Baglieri, and Alessandro Vitale. 2020. "Effect of Microalgal Extracts from Chlorella vulgaris and Scenedesmus quadricauda on Germination of Beta vulgaris Seeds" Plants 9, no. 6: 675. https://doi.org/10.3390/plants9060675

APA Style

Puglisi, I., Barone, V., Fragalà, F., Stevanato, P., Baglieri, A., & Vitale, A. (2020). Effect of Microalgal Extracts from Chlorella vulgaris and Scenedesmus quadricauda on Germination of Beta vulgaris Seeds. Plants, 9(6), 675. https://doi.org/10.3390/plants9060675

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