
TY  - JOUR
A1  - Akilan, K 
A1  - Considine, JA 
A1  - Joyce, DC 
A1  - Marshall, JK 
T1  - Morphological Responses of Geraldton Wax to Transient Soil-Water Deficit
JF  - Australian Journal of Botany
JO  - Aust. J. Bot.
Y1  - 1994
VL  - 42
IS  - 2
SP  - 205
EP  - 217
KW  - 
UR  - https://doi.org/10.1071/BT9940205 
N2  - Changes in leaf angle and flower diameter of Geraldton wax (Chamelaucium uncinatum) in response to declining shoot water potential (&#968;shoot)) were assessed as indicators of plant water status. Leaves and petals in Geraldton wax moved vertically as &#968;shoot decreased. In cv. Purple Pride, the leaf angle of recently-matured, fully-expanded leaves and the diameter of fully developed flowers showed strong linear correlations with declining &#968;shoot (r2 = 0.90 and 0.94 respectively). The relationships were less strong when applied to almost fully expanded leaves (r2 = 0.51) and young flowers (r2 = 0.64). Older leaves showed no consistent correlation between leaf angle and &#968;shoot (r2 = 0.01). Similar results were observed in cvv. Alba and Lady Stephanie, but the change in orientation for a given change in &#968;shoot was smaller in cv. Alba than those observed in cvv. Purple Pride and Lady Stephanie. Vertical orientation of leaves and flower petals in droughted plants could be used as indicators of level of water deficit. 
ER  -

