Plant and Soil

, Volume 208, Issue 2, pp 179–186 | Cite as

Water relations and root activities of Buchloe dactyloides and Zoysia japonica in response to localized soil drying

  • Bingru Huang
Article

Abstract

Effects of localized soil drought stress on water relations, root growth, and nutrient uptake were examined in drought tolerant ‘Prairie’ buffalograss [Buchloe dactyloides (Nutt.) Engelm.] and sensitive ‘Meyer’ zoysiagrass (Zoysia japonica Steud.). Grasses were grown in small rhizotrons in a greenhouse and subjected to three soil moisture regimes: (1) watering the entire 80-cm soil profile (well-watered control); (2) drying 0–40 cm soil and watering the lower 40 cm (partially dried); (3) and drying the entire soil profile (fully dried). Drying the 0–40 cm soil for 28 days had no effect on leaf water potential (Ψleaf) in Prairie buffalograss compared to the well-watered control but reduced that in Meyer zoysiagrass. Root elongation rate was greater for Prairie buffalograss than Meyer zoysiagrass under well-watered or fully dried conditions. Rooting depth increased with surface soil drying; with Prairie buffalograss having a larger proportion of roots in the lower 40 cm than Meyer zoysiagrass. The higher rates of water uptake in the deeper soil profile in the partially dried compared to the well-watered treatment and by Prairie buffalograss compared to Meyer zoysiagrass could be due to differences in root distribution. Root 15N uptake for Prairie buffalograss was higher in 0–20 cm drying soil in the partially dried treatment than in the fully dried treatment. Diurnal fluctuations in soil water content in the upper 20 cm of soil when the lower 40 cm were well-watered indicated water efflux from the deeper roots to the drying surface soil. This could help sustain root growth, maintain nutrient uptake in the upper drying soil layer, and prolong turfgrass growth under localized drying conditions, especially for the deep-rooted Prairie buffalograss.

water uptake root elongation root distribution drought turfgrass 

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References

  1. Baker J M and Van Bavel C H M 1986 Resistance of plant roots to water loss. Agron. J. 78, 641–644.CrossRefGoogle Scholar
  2. Beard J B 1989 Turfgrass water stress: drought resistance components, physiological mechanisms, and species-genotype diversity. In Proceeding of the 6th International Turfgrass Science. Ed. H Takatoh. pp 23–28. Tokyo.Google Scholar
  3. Brady D J, Wenzel C L, Fillery I R P and Gregory P J 1995 Root growth and nitrate uptake by wheat (Triticum aestivum L.) following wetting of dry surface soil. J. Exp. Bot. 46, 557–567.Google Scholar
  4. Blum A and Johnson J W 1992 Transfer of water from roots into dry soil and the effect on wheat water relations and growth. Plant Soil 145, 141–149.CrossRefGoogle Scholar
  5. Caldwell M M and Richards J H 1989 Hydraulic lift: water efflux from upper roots improves effectiveness of water uptake by deep roots. Oecologia 79, 1–5.CrossRefGoogle Scholar
  6. Carrow R N 1996 Drought resistance aspects of turfgrasses in the southeast: root–shoot responses. Crop Sci. 36, 687–694.CrossRefGoogle Scholar
  7. Gallardo M, Turner N C and Ludig C 1994 Water relations, gas exchange and abscisic acid content of Lupinus cosentinii leaves in response to drying different proportions of the root system. J. Exp. Bot. 45, 909–918.Google Scholar
  8. Gallardo M, Jackson L E and Thompson R B 1996 Shoot and root physiological responses to localized zones of soil moisture in cultivated and wild lettuce (Lactuca spp.). Plant Cell Environ. 19, 1169–1178.CrossRefGoogle Scholar
  9. Hays K L, Barber J F, Kenna MP and McCollum T G 1991 Drought avoidance mechanisms of selected bermudagrass genotypes. HortSci. 26, 180–182.Google Scholar
  10. Huang B and Fry J D 1998 Root anatomical, physiological and morphological responses to drought stress for tall fescue cultivars. Crop Sci. 38, 1017–1022.CrossRefGoogle Scholar
  11. Huang B, North G B and Nobel P 5 1993 Soil sheaths, photosynthate distribution to roots, and rhizosphere water relations for Opuntia ficus-indica. Int. J. Plant Sci. 154, 425–431.CrossRefGoogle Scholar
  12. Huang B, Duncan R R and Carrow R N 1997 Drought-resistance mechanisms of seven warm-season turfgrasses under surface soil drying: II. Root aspects. Crop Sci. 37, 1863–1869.CrossRefGoogle Scholar
  13. Kirkham M B 1983 Physical model of water movement in split-root system. Plant Soil 75, 153–168.CrossRefGoogle Scholar
  14. Marcum K B, Engelke M C and Morton S J 1995a Rooting characteristics of buffalograss grown in flexible plastic tubes. HortSci. 30, 1390–1392.Google Scholar
  15. Marcum K B, Engelke M C, Morton S J and White R H 1995b Root characteristics and associated drought resistance of zoysiagrasses. Agron. J. 87, 534–538.CrossRefGoogle Scholar
  16. Nambiar E K S 1976 Uptake of Zn65 from dry soil by plants. Plant Soil 44, 267–271.CrossRefGoogle Scholar
  17. Qian Y and Fry J D 1997 Water relations and drought tolerance of four turfgrasses. J. Am. Soc. Hort. Sci. 122, 129–133.Google Scholar
  18. Richards J H and Caldwell M M 1987 Hydraulic lift: substantial nocturnal water transport between soil layers by Artemisia tridentata roots. Oecologia 73, 486–489.CrossRefGoogle Scholar
  19. SAS Institute Inc 1988 SAS/SAT User's Guide. Release 6.03 Ed. SAS Institute Inc., Cary, NC.Google Scholar
  20. Sheffer K M, Dunn J H and Minner D D 1987 Summer drought response and rooting depth of three cool-season turfgrasses. HortSci. 22, 296–297.Google Scholar
  21. Smucker A J M, Nunez-Barrios A and Ritchie J T 1991 Root dynamics in drying soil environments. Belowground Ecol. 1 1–5.Google Scholar
  22. Taylor H M 1983 A program to increase plant available water through rooting modification. In Root Ecology and Its Practical Application: A Contribution to the Investigation of the Whole Plant. Ed. H Bohm. pp. 463–472. Verlag Gumpenstein, Irdning.Google Scholar
  23. Taylor HM, Upchurch D R, Brown JM and Rogers H H 1990 Some Methods of Root Investigations. Elsevier, New York.Google Scholar
  24. White R H, Engelke M C, Morton S J and Ruemmele B A 1993 Irrigation water requirement of zoysiagrass. Int. Turf. Soc. Res. J. 7, 587–593.Google Scholar
  25. Wraith J M and Baker J M 1991 High resolution measurement of root water uptake using automated time-domain reflectometry. Soil Sci. Soc. Am J. 55, 928–932.CrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • Bingru Huang
    • 1
  1. 1.Department of Horticulture, Forestry and Recreation ResourcesKansas State UniversityManhattanUSA

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