Drought Stress Response of Turf-Type Perennial Ryegrass Genotypes in a Mediterranean Environment
Perennial ryegrass is generally known as exhibiting poor drought tolerance with poor recuperative capacity. The objective of this study was to evaluate the effects of acute drought followed by a recovery period, on 11 perennial ryegrass varieties (Apple SGL, Azimuth, Barrage, Caddieshack, Double, Do...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/10/11/1810 |
| _version_ | 1797547601733615616 |
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| author | Cristina Pornaro Matteo Serena Stefano Macolino Bernd Leinauer |
| author_facet | Cristina Pornaro Matteo Serena Stefano Macolino Bernd Leinauer |
| author_sort | Cristina Pornaro |
| collection | DOAJ |
| description | Perennial ryegrass is generally known as exhibiting poor drought tolerance with poor recuperative capacity. The objective of this study was to evaluate the effects of acute drought followed by a recovery period, on 11 perennial ryegrass varieties (Apple SGL, Azimuth, Barrage, Caddieshack, Double, Double Time, Ecologic, New Orleans, Pizzaz 2, Rainwater, Turfgold) and one tall fescue (Olympic Gold). The study was conducted in a rain-out structure to control water inputs. Green cover percentage, visual quality, color, normalized difference vegetation index (NDVI), and soil moisture were measured weekly. Eighty percent coverage was considered optimal and was reached only during the first two weeks of the drought period. Starting from the fourth week, a significant decrease in green cover was observed for most of the perennial ryegrass cultivars. However, 5 cultivars displayed a visual quality rate greater than 6, which is considered acceptable during this period, while color ratings were recorded greater than 6 for 7 cultivars. At the end of the drought phase, the cultivar ’New Orleans’ exhibited significantly greater green cover compared to most other perennial ryegrasses. The recovery of the grasses was slow and at the end of the experiment the variability in green cover between cultivars was greater than during the first week. |
| first_indexed | 2024-03-10T14:46:24Z |
| format | Article |
| id | doaj.art-02aa22366bd646a98d4caa4a326d643e |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T14:46:24Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-02aa22366bd646a98d4caa4a326d643e2023-11-20T21:18:47ZengMDPI AGAgronomy2073-43952020-11-011011181010.3390/agronomy10111810Drought Stress Response of Turf-Type Perennial Ryegrass Genotypes in a Mediterranean EnvironmentCristina Pornaro0Matteo Serena1Stefano Macolino2Bernd Leinauer3Department of Agronomy, Food, Natural resources, Animals, and the Environment, University of Padova, 35020 Legnaro (PD), ItalyDepartment of Extension Plant Science, New Mexico State University, Las Cruces, NM 88003, USADepartment of Agronomy, Food, Natural resources, Animals, and the Environment, University of Padova, 35020 Legnaro (PD), ItalyDepartment of Extension Plant Science, New Mexico State University, Las Cruces, NM 88003, USAPerennial ryegrass is generally known as exhibiting poor drought tolerance with poor recuperative capacity. The objective of this study was to evaluate the effects of acute drought followed by a recovery period, on 11 perennial ryegrass varieties (Apple SGL, Azimuth, Barrage, Caddieshack, Double, Double Time, Ecologic, New Orleans, Pizzaz 2, Rainwater, Turfgold) and one tall fescue (Olympic Gold). The study was conducted in a rain-out structure to control water inputs. Green cover percentage, visual quality, color, normalized difference vegetation index (NDVI), and soil moisture were measured weekly. Eighty percent coverage was considered optimal and was reached only during the first two weeks of the drought period. Starting from the fourth week, a significant decrease in green cover was observed for most of the perennial ryegrass cultivars. However, 5 cultivars displayed a visual quality rate greater than 6, which is considered acceptable during this period, while color ratings were recorded greater than 6 for 7 cultivars. At the end of the drought phase, the cultivar ’New Orleans’ exhibited significantly greater green cover compared to most other perennial ryegrasses. The recovery of the grasses was slow and at the end of the experiment the variability in green cover between cultivars was greater than during the first week.https://www.mdpi.com/2073-4395/10/11/1810recovery from drought stressvisual qualitygreen coverGDDET |
| spellingShingle | Cristina Pornaro Matteo Serena Stefano Macolino Bernd Leinauer Drought Stress Response of Turf-Type Perennial Ryegrass Genotypes in a Mediterranean Environment Agronomy recovery from drought stress visual quality green cover GDD ET |
| title | Drought Stress Response of Turf-Type Perennial Ryegrass Genotypes in a Mediterranean Environment |
| title_full | Drought Stress Response of Turf-Type Perennial Ryegrass Genotypes in a Mediterranean Environment |
| title_fullStr | Drought Stress Response of Turf-Type Perennial Ryegrass Genotypes in a Mediterranean Environment |
| title_full_unstemmed | Drought Stress Response of Turf-Type Perennial Ryegrass Genotypes in a Mediterranean Environment |
| title_short | Drought Stress Response of Turf-Type Perennial Ryegrass Genotypes in a Mediterranean Environment |
| title_sort | drought stress response of turf type perennial ryegrass genotypes in a mediterranean environment |
| topic | recovery from drought stress visual quality green cover GDD ET |
| url | https://www.mdpi.com/2073-4395/10/11/1810 |
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