Studio dell’influenza di diversi livelli di carenzamento idrico sulla qualità di tappeti erbosi di Festuca arundinacea Schreb. e Cynodon dactylon (L.) Pers.
Author(s)
Ruggeri, Roberto
Date Issued
April 22, 2008
Type
Doctoral Thesis
Abstract
In the Mediterranean environment, in order to maintain a good turfgrass quality during summertime, irrigation supplies are considerable and expensive.
Consequently, prudent water management greatly influences two important aspects of turfgrass system: economy and eco-compatibility.
The solution of this double issue is the aim of the present research.
The study has been conducted to determine water amounts required for a regular growth and good aesthetic appearance of two turfgrass species: Festuca arundinacea and Cynodon dactylon.
Five restoration levels of Maximum Evapotranspiration (ETM) have been compared:
1. Daily restoration of 60% of ETM
2. Periodical restoration (two times a week) of 60% of ETM
3. Daily restoration of 40% of ETM
4. Periodical restoration (two times a week) of 40% of ETM
5. 0% of ETM
The data collected during two years indicate that a periodical replenishment equal to 60% of water deficit is the best solution, because it allows to obtain a sufficient aesthetic general appearance, not significatively different by daily restoration, also in the extremely dry climate conditions.
Cynodon dactylon results more suitable than Festuca arundinacea when water stress lasts for a long period, while the cool-season specie has a good aesthetic renewal as soon as climatic conditions become less severe.
Water savings have been calculated to be approximately 65 mm per irrigation-season during 2006 and 132 mm during 2007.
Additional information
Dottorato di ricerca in Ortoflorofrutticoltura
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