The After-Effect of Water Stress on Transpiration Rate and Changes in Abscisic Acid Content of Young Wheat Plants

1977 ◽  
Vol 41 (2) ◽  
pp. 149-154 ◽  
Author(s):  
CURT BENGTSON ◽  
STIG OLOF FALK ◽  
STIG LARSSON
Keyword(s):  
Abscisic Acid ◽  
Water Stress ◽  
Transpiration Rate ◽  
Acid Content ◽  
Effect Of Water ◽  
After Effect ◽  
Abscisic Acid Content

scholarly journals Interactions between leaf water potential, stomatal conductance and abscisic acid content of orange trees submitted to drought stress

2004 ◽  
Vol 16 (3) ◽  
pp. 155-161 ◽  
Author(s):  
Mara de Menezes de Assis Gomes ◽  
Ana Maria Magalhães Andrade Lagôa ◽  
Camilo Lázaro Medina ◽  
Eduardo Caruso Machado ◽  
Marcos Antônio Machado
Keyword(s):  
Abscisic Acid ◽  
Water Stress ◽  
Stomatal Conductance ◽  
Water Potential ◽  
Leaf Water Potential ◽  
Acid Content ◽  
Stomatal Closure ◽  
Leaf Water ◽  
Orange Trees ◽  
Abscisic Acid Content

Thirty-month-old 'Pêra' orange trees grafted on 'Rangpur' lemon trees grown in 100 L pots were submitted to water stress by the suspension of irrigation. CO2 assimilation (A), transpiration (E) and stomatal conductance (g s) values declined from the seventh day of stress, although the leaf water potential at 6:00 a.m. (psipd) and at 2:00 p.m. (psi2) began to decline from the fifth day of water deficiency. The CO2 intercellular concentration (Ci) of water-stressed plants increased from the seventh day, reaching a maximum concentration on the day of most severe stress. The carboxylation efficiency, as revealed by the ratio A/Ci was low on this day and did not show the same values of non-stressed plants even after ten days of rewatering. After five days of rewatering only psi pd and psi2 were similar to control plants while A, E and g s were still different. When psi2 decreases, there was a trend for increasing abscisic acid (ABA) concentration in the leaves. Similarly, stomatal conductance was found to decrease as a function of decreasing psi2. ABA accumulation and stomatal closure occurred when psi2 was lower than -1.0 MPa. Water stress in 'Pera´ orange trees increased abscisic acid content with consequent stomatal closure and decreased psi2 values.

scholarly journals Abscisic Acid Content of Senescing Petals on Cut Rose Flowers As Affected by Sucrose and Water Stress

1976 ◽  
Vol 58 (2) ◽  
pp. 175-178 ◽  
Author(s):  
Amihud Borohov ◽  
Tsipora Tirosh ◽  
Abraham H. Halevy
Keyword(s):  
Abscisic Acid ◽  
Water Stress ◽  
Acid Content ◽  
Abscisic Acid Content ◽  
Cut Rose

scholarly journals Leaf Abscisic Acid Content and Recovery from Water Stress in Pearl Millet (Pennisetum americanum[L.] Leeke)1

1984 ◽  
Vol 35 (1) ◽  
pp. 99-109 ◽  
Author(s):  
I. E. HENSON ◽  
V. MAHALAKSHMI ◽  
G. ALAGARSWAMY ◽  
F. R. BIDINGER
Keyword(s):  
Abscisic Acid ◽  
Water Stress ◽  
Pearl Millet ◽  
Acid Content ◽  
Pennisetum Americanum ◽  
Abscisic Acid Content

The After-Effect of Water Stress on Chlorophyll Formation during Greening and the Levels of Abscisic Acid and Proline in Dark Grown Wheat Seedlings

1978 ◽  
Vol 43 (3) ◽  
pp. 205-212 ◽  
Author(s):  
CURT BENGTSON ◽  
BIRGITTA KLOCKARE ◽  
RUNE KLOCKARE ◽  
STIG LARSSON ◽  
CHRISTER SUNDQVIST
Keyword(s):  
Abscisic Acid ◽  
Water Stress ◽  
Wheat Seedlings ◽  
Effect Of Water ◽  
After Effect ◽  
Chlorophyll Formation
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