DOI: 10.1007/s11104-020-04824-6 Web URL(s): https://link.springer.com/article/10.1007/s11104-020-04824-6 https://link.springer.com/content/pdf/10.1007/s11104-020-04824-6.pdf Publication Type:
i
Refereed Author(s): Boldrin, David ;
Bengough, Anthony Glyn ;
Lin, Zijian ;
Loades, Kenneth Wilhelmus Author Affiliation: Boldrin and Bengough: School of Science and Engineering, University of Dundee, Dundee, UK and The James Hutton Institute, Invergowrie, Dundee, UK; Lin: School of Science and Engineering, University of Dundee, Dundee, UK; Loades: The James Hutton Institute, Invergowrie, Dundee, UK Title: Root age influences failure location in grass species during mechanical testing Source: Plant and Soil . Vol. 461, No. 1-2, April 2021, p. 457-469.# of Pages: 13 Publishing Information: Dordrecht, The Netherlands: Kluwer Academic Publishers Abstract/Contents: "Aims Root tensile tests are often rejected if failure location is outside the middle section of samples. This study aims to identify where and why failure occurs along a root axis, and hence to revisit current approaches to test-validity. Methods Roots from Festuca arundinacea ; Lolium multiflorum ; Lolium perenne were sampled from field-grown plants. Roots were tensile tested using a universal testing machine. Root samples were randomly allocated into two groups for testing. Group 1 roots were orientated with the older tissue closest to the top clamp, group 2 roots were orientated oppositely. Tensile strength, Youngs modulus and failure location were recorded for each sample. Results Lolium multiflorum roots were thinner and stronger than roots of Festuca arundinacea . Failure location in tensile tests depended significantly on tissue age with 75% of samples failing in the younger third of root tissue regardless of the root orientation in the testing frame. Only 7% of roots failed in the middle third of the sample. Conclusions Fibrous roots tested in tension were observed to consistently fail in the younger tissue along the root axis. Exclusion of samples which fail outside the middle region of the root axis needs re-evaluation for a range of species." Language: English References: 49 Note: Tables ASA/CSSA/SSSA Citation (Crop Science -Like - may be incomplete ): Plant Soil. 461(1-2):p. 457-469.Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=315241 If there are problems with this record, send us feedback about record 315241 . Choices for finding the above item : DOI: 10.1007/s11104-020-04824-6 Web URL(s): https://link.springer.com/article/10.1007/s11104-020-04824-6 https://link.springer.com/content/pdf/10.1007/s11104-020-04824-6.pdf b2212822 Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)
