Differential responses to phosphorus availability in the halophytesAeluropus Littoralis,Catapodium rigidum, andHordeum maritimum
| Autor: | Abdelwahed Hamdi, Sonia Mbarki, Chedly Abdelly, Ons Talbi-Zribi, Inès Slama |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
biology Phosphorus Soil Science chemistry.chemical_element Catapodium rigidum 04 agricultural and veterinary sciences biology.organism_classification 01 natural sciences Aeluropus littoralis Agronomy Fodder chemistry Halophyte 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Poaceae Hordeum vulgare Hordeum 010606 plant biology & botany |
| Zdroj: | Arid Land Research and Management. 31:301-315 |
| ISSN: | 1532-4990 1532-4982 |
| Popis: | The objective of this experiment was to explore the variability of response to phosphorus (P) availability in three fodder Poaceae species native of saline biotopes, Aeluropus littoralis, Catapodium rigidum, and Hordeum maritimum. The behavior of these wild species has been compared to that of a cultivated one, Hordeum vulgare. Plants were grown in plastic pots filled with inert sand. The experiment was carried out in a greenhouse with six P levels: 0, 5, 15, 60, 180, and 360 µM P concentration supplied as KH2PO4. Results showed that the growth of the four species is strongly affected by the low phosphorus availability in the medium. Furthermore, to reach 80% of their maximum yield expressed as shoot dry weight (DW), a soil phosphorus concentration of approximately 40 µM P concentration is sufficient for Hordeum maritimum, whereas approximately 66, 120, and 132 µM P concentration are needed for C. rigidum, A. littoralis, and Hordeum vulgare plants, respectively. Thus, our results showed that spont... |
| Databáze: | OpenAIRE |
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