Roots, phosphorus uptake and water use efficiency of maize genotypes

K. R. Végh, T. Szundy, K. Rajkai, T. Tischner

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The growth, phosphorus uptake and water use of six maize genotypes were studied in pot experiments in a controlled environment. Morphological and ecophysiological parameters of the genotypes, such as RWR (root weight ratio), SRL (specific root length), SLA (specific leaf area), P/RA (shoot P/root surface area), Lv (root length density), WUE (water use efficiency) and S (a stress factor on the relative growth rate basis) were studied. Genotypes with a more developed root system gave a better performance in water- and P-deficient conditions. Water use efficiency increased with increasing P supply. The hybrids Norma and Mv 444 and the inbred line Norma A were more efficient in water use and P acquisition than the lines Norma B, 444 A and 444 B. In respect of stress tolerance Norma was superior in the Norma-group as reflected in stress factors estimated on the relative growth rate (RGR) basis.

Original languageEnglish
Pages (from-to)35-43
Number of pages9
JournalActa Agronomica Hungarica
Volume46
Issue number1
Publication statusPublished - 1998

Fingerprint

water use efficiency
uptake mechanisms
phosphorus
corn
genotype
water
stress tolerance
inbred lines
root systems
surface area
leaf area
shoots

Keywords

  • Controlled environment
  • Maize genotypes
  • Morphological and ecophysiological parameters
  • P acquisition
  • Roots
  • Water use efficiency (WUE)

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Roots, phosphorus uptake and water use efficiency of maize genotypes. / Végh, K. R.; Szundy, T.; Rajkai, K.; Tischner, T.

In: Acta Agronomica Hungarica, Vol. 46, No. 1, 1998, p. 35-43.

Research output: Contribution to journalArticle

Végh, KR, Szundy, T, Rajkai, K & Tischner, T 1998, 'Roots, phosphorus uptake and water use efficiency of maize genotypes', Acta Agronomica Hungarica, vol. 46, no. 1, pp. 35-43.
Végh, K. R. ; Szundy, T. ; Rajkai, K. ; Tischner, T. / Roots, phosphorus uptake and water use efficiency of maize genotypes. In: Acta Agronomica Hungarica. 1998 ; Vol. 46, No. 1. pp. 35-43.
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