Electrolyte Leakage and Water Deficit in Wheat Grown in a Growth Room Environment

Autor: Nyachiro, J. M., Briggs, K. G.
Zdroj: Cereal Research Communications; December 2000, Vol. 28 Issue: 4 p363-369, 7p
Abstrakt: Wheat cultivars that can thrive well in water-limited soil conditions are desirable in wheat improvement programs of semiarid environments. There is inadequate information regarding the physiological traits that can be used for predicting levels of water deficit tolerance in different wheat cultivars. The objective of this study was to determine changes in electrolyte leakage (EL) and responses to water deficit among eight wheat cultivars differing in drought susceptibility indexes (DSI). Two Triticum turgidumvar. durumand six T. aestivumwheat cultivars were grown in three replicates with two water treatments (1) water deficit, and (2) non-water deficit in a growth room controlled environment. At 30 d after planting following an early water deficit treatment EL was measured. Analysis of EL showed significant (P< 0.05) differences between durum cultivars but no significant cultivar x treatment interaction, whereas the bread wheats showed a significant cultivar effect and cultivar x watering treatment interaction.
Databáze: Supplemental Index