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| DOI: | 10.21273/HORTSCI.35.3.414B |
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| Web URL(s): | https://journals.ashs.org/hortsci/view/journals/hortsci/35/3/article-p414B.xml?rskey=PAm9GF
Last checked: 11/14/2019
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Huang, Bingru;
Xu, Qingzhang |
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| Author Affiliation: | Department of Horticulture, Kansas State University, Manhattan, KS |
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| Title: | Root mortality and nutrient uptake of creeping bentgrass in response to differential root and shoot temperatures |
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| Section: | Poster session 4: Crop physiology
Other records with the "Poster session 4: Crop physiology" Section
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| Meeting Info.: | 97th International Conference of the American Society for Horticultural Science, 23-26 July, 2000, Lake Buena Vista, FL |
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| Source: | HortScience. Vol. 35, No. 3, June 2000, p. 414. |
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| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Roots; Nutrient uptake; Agrostis stolonifera; Temperatures; Shoots; Shoot growth; Responses; Root growth; Heat resistance; Cultivar evaluation; Root temperature; Cultivar variation; Soil temperature; Air temperature; Root weight; Nitrogen; Phosphorus; Potassium
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| Cultivar Names: | Penncross; L-93 |
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| Abstract/Contents: | "This study was designed to compare and determine root growth and nutritional responses of creeping bentgrass cultivars that differ in heat tolerance to deferential, supraoptimal shoot and root temperatures. Shoots and roots of 'Penncross' (heat sensitive) and 'L-93' (heat tolerant) were exposed to four differential air/soil temperature regimes (20/20-control, 20/35, 35/20, and 35/35°C) in water baths and growth chambers. Exposing roots to supraoptimal root temperature (35 °C) while maintaining shoots at normal temperatures (20 °C), or at 35 °C in particular, reduced root fresh weight, root number, the content of N, P, and K in shoots and roots, and accelerated root death for both cultivars. High root temperature had a greater detrimental effects on root growth and nutrient accumulation than high shoot temperature for both cultivars. Reducing root temperature at supraoptimal shoot temperature improved root growth, reduced root mortality, and increased N, P and K content in shoots and roots. Among the three nutrient elements, K was the most sensitive to changes in root temperature. L-93 generally maintained higher root fresh weight and number, and N, P, and K content in shoots and roots, particularly K in roots, under high root (20/35 °C) or shoot/root (35/35 °C) temperatures. The results indicated that root growth and nutrient accumulation, particularly K, played an important role in creeping bentgrass tolerance to heat stress imposed to shoots by high air temperature or to roots by high soil temperatures. Reducing root temperature under supraoptimal ambient temperatures enhanced root growth and nutrient relations, and thus could lead to the improved shoot growth in cool-season grasses as reported previously." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Huang, B., and Q. Xu. 2000. Root mortality and nutrient uptake of creeping bentgrass in response to differential root and shoot temperatures. HortScience. 35(3):p. 414. |
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| DOI: 10.21273/HORTSCI.35.3.414B |
| Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/35/3/article-p414B.xml?rskey=PAm9GF
Last checked: 11/14/2019
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 1 .H64 |
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