
TY  - JOUR
A1  - Wright, GC 
A1  - Smith, RCG 
A1  - McWilliam, JR 
T1  - Differences between two grain sorghum genotypes in adaptation to drought stress. I. Crop growth and yield responses
JF  - Australian Journal of Agricultural Research
JO  - Aust. J.  Agric. Res.
Y1  - 1983
VL  - 34
IS  - 6
SP  - 615
EP  - 626
KW  - 
UR  - https://doi.org/10.1071/AR9830615 
N2  - A sorghum F1-hybrid, E57 , with reputed drought resistance was compared with another F1-hybrid, TX- 671, under irrigation and dryland conditions of severe rainfall insufficiency but ample soil water at depth in a deep cracking clay soil. Significant cultivar differences in grain yield occurred under rain-fed but not under irrigated conditions. Differences in yield were associated with different morphological responses to drought stress, with the variety E-57, in comparison with TX-671, having a lower level of floret abortion, the ability to maintain green leaf area longer during grain-filling and probably a higher root to shoot ratio. The implication of these results in relation to adaptation to drought stress is discussed. 
ER  -

