Authors:
Elisabetta Oddo Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, via Archirafi 20/38, Palermo I-90123, Italy

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Gianni Russo Department of Agricultural, Food and Forest Sciences, University of Palermo, viale delle Scienze Ed. 4, Palermo, I-90128, Italy

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Francesca Grisafi Department of Agricultural, Food and Forest Sciences, University of Palermo, viale delle Scienze Ed. 4, Palermo, I-90128, Italy

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Introduction

Using brackish water for irrigation may expose turfgrasses to salinity stress. Employing the best treatments to maintain high-quality turfs under saline conditions is an important requirement for turfgrass management.

Methods

We tested the response of a halophyte grass, Puccinellia distans, to irrigation with saline solutions and to foliar application of two osmoprotectants, such as glycine betaine (GB) or chitosan (CH). Plants were grown in pots under controlled conditions and irrigated with 200 mM or 600 mM of NaCl solutions. The response to salinity treatments and osmoprotectant application was evaluated after 90 days by measuring leaf firing, leaf density, shoot length and biomass, root length, and shoot water potential.

Results

Increasing salinity reduced shoot density, shoot and root length, shoot water potential, and increased leaf firing and shoot solute potential at 200 mM of NaCl. These effects were more pronounced at 600 mM of NaCl. Application of GB greatly increased shoot growth traits at 200 mM of NaCl and also showed beneficial effects on most traits at 600 mM. Application of CH showed positive effects only on leaf firing and leaf water potential at 600 mM.

Conclusions

Our results show that P. distans can tolerate high levels of salt stress, which can be best alleviated by GB treatment.

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Biologia Futura
Language English
Size A4
Year of
Foundation
2019 (1950)
Volumes
per Year
1
Issues
per Year
4
Founder Magyar Tudományos Akadémia  
Founder's
Address
H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 2676-8615 (Print)
ISSN 2676-8607 (Online)