Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-22T08:19:18.209Z Has data issue: false hasContentIssue false
  • English
  • Français

Variation in total root length and root diameter of wild and cultivated lentil grown under drought and re-watered conditions

Published online by Cambridge University Press:  18 September 2018

Linda Yuya Gorim  and
Albert Vandenberg
Linda Yuya Gorim*
Affiliation:
Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, SK, Canada
Albert Vandenberg
Affiliation:
Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, SK, Canada
*
*Corresponding author. E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Lentil is now an integral part of prairie cropping systems. Climate forecasts point to variable and increased drought frequency, putting lentil production in jeopardy. Future lentil genotypes will require root systems that can extract more water under drought conditions. This study focuses on root diameter and root tip number, traits known to play an important role in water uptake during drought. We compared the total root length (TRL) in three soil horizons of both wild and cultivated lentil genotypes for three root diameter classes when plants were grown under moderate or severe drought, and when re-watered after exposure to moderate drought conditions. Our study demonstrates that roots of both wild and cultivated lentil genotypes can be categorized into very fine, fine and small diameter classes. Some wild lentil genotypes had significantly higher TRL in the B and C soil horizons when grown under severe or moderate drought and therefore, could act as resources for the transfer of root traits to cultivated lentil genotypes. Further evaluations focused on the root systems of interspecific recombinant inbred lines under drought conditions will be required to determine whether these traits are heritable.

Keywords

droughtroot diametersoil horizonswild lentil genotypes
Type
Research Article
Information
Plant Genetic Resources , Volume 17 , Issue 1 , February 2019 , pp. 45 - 53
Copyright
Copyright © NIAB 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Böhm, W (1979) Methods of Studying Root Systems. Berlin: Springer-Verlag. p. 188.Google Scholar
Comas, LH, Becker, SR, Cruz, VMV, Byrne, PF and Dierig, DA (2013) Root traits contributing to plant productivity under drought. Frontiers in Plant Sciences 442: 1–16.Google Scholar
Gan, YT, Campbell, CA, Janzen, HH, Lemke, R, Liu, LP, Basnyat, P and McDonald, CL (2009) Root mass for oilseed and pulse crops: growth and distribution in the soil profile. Canadian Journal of Plant Science 89: 883–893.Google Scholar
Gan, Y, Liu, L, Cutforth, H, Wang, X and Ford, G (2011) Vertical distribution profiles and temporal growth patterns of roots in selected oilseeds, pulses and spring wheat. Crop and Pasture Science 62: 457- 466.Google Scholar
Gorim, LY and Vandenberg, A (2017a) Evaluation of wild lentil species as genetic resources to improve drought tolerance in cultivated lentil. Frontiers in Plant Science 8: 1129.Google Scholar
Gorim, LY and Vandenberg, A (2017b) Root traits, nodulation and root distribution in soil for five wild lentil species and Lens culinaris (Medik.) grown under well-watered conditions. Frontiers in Plant Science 8: 1632.Google Scholar
Guo, DL, Mitchell, RJ and Hendricks, JJ (2004). Fine root branch orders respond differentially to carbon source-sink manipulations in a longleaf pine forest. Oecologia 140: 450–457.Google Scholar
IPCC (2013) Climate Change 2013: The Physical Science Basis, Working Group I Contribution to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Stocker TF, Dahe Q, Plattner GK, Tignor M, Allen SK, Boschung J, Nauels A, Xia Y, Bex V and Midgley PM (eds.). Cambridge, UK and New York, USA: Cambridge University Press, 1535 p.Google Scholar
Liu, L, Gan, Y, Bueckert, R, Rees, KV and Warkentin, T (2010) Fine root distributions in oilseed and pulse crops. Crop Science 50: 222–226.Google Scholar
Materechera, SA, Alston, AM, Kirby, JM and Dexter, AR (1992) Influence of root diameter on the penetration of seminal roots into a compacted subsoil. Plant and Soil 144: 297–303.Google Scholar
McCormack, ML, Dickie, IA, Eissenstat, DM, Fahey, TJ, Fernandez, CW, Guo, D, Helmisaari, HS, Hobbie, EA, Iversen, CM, Jackson, RB, Leppälammi-Kujansuu, J, Norby, RJ, Phillips, RP, Pregitzer, KS, Pritchard, SG, Rewald, B and Zadworny, M (2015) Redefining fine roots improves understanding of below-ground contributions to terrestrial biosphere processes. New Phytologist 207: 505–518.Google Scholar
Norby, RJ and Jackson, RB (2000) Root dynamics and global change: seeking an ecosystem perspective. New Phytologist 147: 3–12.Google Scholar
Sauchyn, D and Kulshreshtha, S (2008) Prairies. In: Lemmen, DS, Warren, FJ, Lacroix, J and Bush, E (eds.) From Impacts to Adaptation: Canada in a Changing Climate 2007. Ottawa, ON: Government of Canada, pp. 275–328.Google Scholar
Slinkard, AE and Bhatty, RS (1979) Laird lentil. Canadian Journal of Plant Science 59: 503–504.Google Scholar
Somma, F, Hopmans, JW and Clausnitzer, V (1998) Transient three-dimensional modeling of soil water and solute transport with simultaneous root growth, root water and nutrient uptake. Plant and Soil 202: 281–293.Google Scholar
Wasson, AP, Richards, RA, Chatrath, R, Misra, SC, Prasad, SV, Rebetzke, GJ, Kirkegaard, JA, Chistopher, J and Watt, M (2012) Traits and selection strategies to improve root systems and water uptake in water-limited wheat crops. Journal of Experimental Botany 63: 3485–3498.Google Scholar
Wong, MML, Gujaria-Verma, N, Ramsay, L, Yuan, HY, Caron, C, Diapari, M, Vandenberg, A and Bett, KE (2015) Classification and characterization of species within the genus Lens using genotyping-by-sequencing (GBS). PLoS ONE 10: e0122025.Google Scholar
Zobel, RW and Waisel, Y (2010) A plant root system architectural taxonomy: a framework for root nomenclature. Plant Biosystems 144: 507–512.Google Scholar
Zobel, RW, Kinraide, TB and Baligar, VC (2007) Fine root diameters can change in response to changes in nutrient concentrations. Plant and Soil 297: 243–254.Google Scholar