Full TGIF Record # 144559
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DOI:10.21273/HORTSCI.43.7.2203
Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/43/7/article-p2203.xml?rskey=9BlgIQ
    Last checked: 11/21/2019
    Requires: PDF Reader
Publication Type:
i
Refereed
Author(s):Lyons, Eric M.; Snyder, Robert H.; Lynch, Jonathan P.
Author Affiliation:Lyons: Department of Crop and Soil Sciences; Snyder and Lynch: Department of Horticulture, The Pennsylvania State University, University Park, Pennsylvania
Title:Regulation of root distribution and depth by phosphorus localization in Agrostis stolonifera
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 43, No. 7, December 2008, p. 2203-2209.
Publishing Information:Alexandria, VA: American Society for Horticultural Science
# of Pages:7
Keywords:TIC Keywords: Root distribution; Agrostis stolonifera; Nutritional requirements; Drought resistance; Phosphorus; Shoot growth; Root depth; Root growth
Abstract/Contents:"Root distribution in turfgrass systems influences drought tolerance and resource competition with undesirable species. We hypothesized that spatial localization of phosphorus (P) supply would permit manipulation of turfgrass root distribution. To test this hypothesis, creeping bentgrass (Agrostis stolonifera L.) plants were exposed to localized P supply in two experiments. The first experiment split the root zone horizontally into two different growth tubes and the second used alumina-buffered P (Al-P) to localize P availability deeper within a continuous root zone. In the horizontally split root zones, heterogeneous P availability led to no difference in shoot growth compared with uniform P availability. Root proliferation was greatest in the growth tube with available P compared with the growth tube without P. The use of Al-P, regardless of its spatial distribution, doubled root-to-shoot ratios compared with soluble P. Much of the increase in the ratio was accounted for by reduced shoot growth. Use of Al-P increased rooting deeper in the root zone, especially when the Al-P was mixed only in the lower portion of the root zone. Our results are consistent with the hypothesis that root distribution of creeping bentgrass can be manipulated by spatial localization of P supply in the root zone and indicate that relative biomass allocation to roots and shoots may be manipulated with buffered P sources."
Language:English
References:46
See Also:Other items relating to: Disasters - Drought
Note:Figures
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lyons, E. M., R. H. Snyder, and J. P. Lynch. 2008. Regulation of root distribution and depth by phosphorus localization in Agrostis stolonifera. HortScience. 43(7):p. 2203-2209.
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DOI: 10.21273/HORTSCI.43.7.2203
Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/43/7/article-p2203.xml?rskey=9BlgIQ
    Last checked: 11/21/2019
    Requires: PDF Reader
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MSU catalog number: b2217685a
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