Characterization of wheat-barley introgression lines for drought tolerance

B. Hoffmann, N. Aranyi, M. Molnár-Láng

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The safety of wheat production in Hungary requires the propagation of droughttolerant cultivars because of the regular occurrence of water deficiency. Hybridization between related species makes it possible to transfer desirable traits from one species to another. Introgression lines developed from wheat/barley hybrids were investigated together with the parental wheat and barley cultivars to determine how the added barley chromosome (segment) influences drought tolerance in wheat. The plants were grown in the field at the UP Georgikon Faculty, Keszthely. Sowing and harvest were done by hand. Half the length of the 12 m rows was covered with a plastic rain shelter on 2 nd April (EC: 30-31) to protect the plants from rain, resulting in a 163 mm difference in water supplies between the control (not covered) and stressed (covered) treatments. Data were obtained for anthesis and maturity date, plant height, root/shoot ratio, leaf water potential, grain yield and grain yield components. The plants adapted to water deficiency by increasing the root/shoot ratio and decreasing the water potential and the duration of grain filling. The grain yield was reduced by 12%, averaged over the genotypes, mainly due to a decrease in the number of spikes per plant.

Original languageEnglish
Pages (from-to)211-218
Number of pages8
JournalActa Agronomica Hungarica
Volume58
Issue number3
DOIs
Publication statusPublished - Sep 1 2010

Fingerprint

drought tolerance
introgression
barley
wheat
grain yield
root shoot ratio
rain
cultivars
leaf water potential
filling period
Hungary
yield components
water potential
water supply
hands
hybridization
inflorescences
sowing
plastics
water

Keywords

  • drought stress
  • water potential
  • wheat-barley hybrids
  • yield
  • yield components

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Characterization of wheat-barley introgression lines for drought tolerance. / Hoffmann, B.; Aranyi, N.; Molnár-Láng, M.

In: Acta Agronomica Hungarica, Vol. 58, No. 3, 01.09.2010, p. 211-218.

Research output: Contribution to journalArticle

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