Journal of Applied Phycology

, Volume 30, Issue 4, pp 2359–2365 | Cite as

Effect of microalgae hydrolysate foliar application (Arthrospira platensis and Scenedesmus sp.) on Petunia x hybrida growth

  • Blanca Maria Plaza
  • Cintia Gómez-Serrano
  • Francisco Gabriel Acién-Fernández
  • Silvia Jimenez-BeckerEmail author


In horticultural practice accelerated plant development and particularly earlier flowering, has been reported with microalgae applications. Therefore, the objective of this work was to study the effects of foliar spraying with Scenedesmus sp. and Arthrospira platensis hydrolysates on Petunia x hybrida plant development and leaf nutrient status. Three treatments were tested: T1 (foliar application with water, the control), T2 (foliar application with Arthrospira), and T3 (foliar application with Scenedesmus). Foliar spraying was applied five times (0, 14, 28, 35, and 42 days after transplanting). The concentration of both microalgae was 10 g L−1. At the end of the trial biometric parameters and nutrient concentration in photosynthetic organs (the leaves) were measured. The results of this assay show that foliar application of Scenedesmus accelerated plant development in terms of higher rates of root growth, leaf and shoot development, and earliness of flowering. Arthrospira enhanced the root dry matter, the number of flowers per plant, and the water content. Nevertheless, a reduction was found in the conductive tissue (stem + petiole) dry weight with Arthrospira compared with Scenedesmus and the control. The results also show that microalgae hydrolysate supply can improve the plant nutrient status. Based on these results, it is advisable to use Scenedesmus hydrolysates in foliar applications to increase the blooming of Petunia x hybrida.


Hormones Flowering Number of leaves Number of shoots Leaf nutrient concentration 


Funding information

This research has received funding from the European Union’s Horizon 2020 Research and Innovation program under the Grant Agreement No. 727874 SABANA, and ERANET LAC GREENBIOREFINERY ELAC 2014/BEE-0357.


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© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Agronomy, Higher Engineering School, Agrifood Campus of International ExcellenceUniversity of AlmeríaAlmeríaSpain
  2. 2.Department of Engineering, Higher Engineering School, Agrifood Campus of International ExcellenceUniversity of AlmeríaAlmeríaSpain

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