Record Details

The effect of flowering on stomatal response to water stress in pearl millet (Pennisetum americanum [L.] Leeke)

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/4304/
http://dx.doi.org/10.1093/jxb/35.2.219
 
Title The effect of flowering on stomatal response to water stress in pearl millet (Pennisetum americanum [L.] Leeke)
 
Creator Henson, I E
Mahalakshmi, V
Alagarswamy, G
Bidinger, F R
 
Subject Millets
 
Description Stomata on the upper leaves of drought-stressed pearl millet were more open in flowering (FL) than in pre-flowering (PF) plants. This was not due to differences in leaf water potential (LWP); stomata of PF plants closed when LWP fell to c.-1.7 MPa, while in FL plants stomata closed when LWP approached -2.3 MPa. Osmotic adjustments did not account for the differences as relations between turgor potential (TP) and LWP were similar in FL and PF plants. While stomata of PF plants closed as TP became zero, FL plants' stomata remained open even after bulk leaf turgor was lost. Leaves of water-stressed PF plants contained higher levels of ABA than leaves of FL plants' despite similarities in water status. From these results and from relationships between leaf conductance and stage of panicle development it was concluded that the tendency of stomata to remain open despite water stress and loss of bulk leaf TP is related to the presence of an emerged panicle
 
Publisher Oxford University Press
 
Date 1984
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/4304/1/JEB_35_151__219-226_1984.pdf
Henson, I E and Mahalakshmi, V and Alagarswamy, G and Bidinger, F R (1984) The effect of flowering on stomatal response to water stress in pearl millet (Pennisetum americanum [L.] Leeke). Journal of Experimental Botany, 35 (151). pp. 219-226. ISSN 0022-0957