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| Web URL(s): | https://www.crops.org/publications/cs/pdfs/38/5/CS0380051219
Last checked: 08/05/2010
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| Publication Type:
| Refereed |
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| Author(s): | Huang, Bingru;
Liu, Xiaozhong;
Fry, Jack D. |
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| Author Affiliation: | Dep. Horticulture, Forestry, and Recreational Resources, Kansas State Univ., Manhattan, KS 66506-5506 |
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| Title: | Shoot physiological responses of two bentgrass cultivars to high temperature and poor soil aeration |
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| Section: | Turfgrass science
Other records with the "Turfgrass science" Section
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| Source: | Crop Science. Vol. 38, No. 5, September/October 1998, p. 1219-1224. |
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| Publishing Information: | Madison, WI: Crop Science Society of America |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Heat resistance; Heat stress; Soil aeration; Genetic variability; Cultivar variation; Chlorophyll; Photosynthesis; Canopy temperature; Respiration rate
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| Cultivar Names: | Crenshaw; Penncross |
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| Abstract/Contents: | "Understanding the effects of high temperature and poor soil aeration and their interaction on growth and physiology of creeping bentgrass (Agrostis palustris Huds.) will help management and breeding programs to improve summer turf quality. The objective of this study was designed to examine shoot physiological responses of 'Crenshaw' and 'Penncross' to high temperature and poor soil aeration. Turf was maintained in growth chambers at day/night temperatures of 22/15Ā°C (optimum) or 35/25Ā°C (high temperature, HT). Soil aeration treatments were (i) adequate aeration with oxygen diffusion rate (ODR) at 1.5 Ī¼g cmā»Ā² minā»Ā¹ by maintaining the soil medium well watered and well drained and (ii) low aeration (LA) with ODR below 0.2 Ī¼g cmā»Ā² minā»Ā¹ induced by flooding the soil medium. Turf growth, quality, chlorophyll content (Chl), and net photosynthetic rate (P^D[n) declined with increasing temperatures or declining aeration for both Crenshaw and Penncross. The HT treatment increased canopy minus air temperatures (ĪT) and dark respiration rates (R^D[n) for both cultivars, with a greater rise in R^D[n for Penncross (44%) than for Crenshaw (25%). The LA treatment inhibited R^D[n but had no effect on ĪT. The combination of HT and LA had more severe adverse effects than either HT or LA alone on turf quality, leaf chlorophyll content, photosynthesis, and respiration, particularly for Penncross. The results demonstrated genetic variations in shoot physiological responses to high temperature and poor soil aeration stresses in creeping bentgrass and indicated that high temperature, when combined with poor soil aeration lead to turf quality decline. This was mainly due to reduced net photosynthesis and increased respiration rates." |
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| Language: | English |
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| References: | 23 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Huang, B., X. Liu, and J. D. Fry. 1998. Shoot physiological responses of two bentgrass cultivars to high temperature and poor soil aeration. Crop Sci. 38(5):p. 1219-1224. |
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| Web URL(s):
https://www.crops.org/publications/cs/pdfs/38/5/CS0380051219
Last checked: 08/05/2010
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 183 .C7 |
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