Biochar mitigates salt stress by regulating nutrient uptake and antioxidant activity, alleviating the oxidative stress and abscisic acid content in cabbage seedlings

1992 ◽  
Vol 100 (2) ◽  
pp. 692-698 ◽  
Author(s):  
Aga Schulze ◽  
Philip J. Jensen ◽  
Mark Desrosiers ◽  
J. George Buta ◽  
Robert S. Bandurski

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

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.


1999 ◽  
Vol 50 (337) ◽  
pp. 1359-1364 ◽  
Author(s):  
D. J. Carrier ◽  
E. J. Kendall ◽  
C. A. Bock ◽  
J. E. Cunningham ◽  
D. I. Dunstan

2014 ◽  
Vol 180 ◽  
pp. 94-101 ◽  
Author(s):  
Giuliana Gambetta ◽  
Carlos Mesejo ◽  
Amparo Martínez-Fuentes ◽  
Carmina Reig ◽  
Alfredo Gravina ◽  
...  

1997 ◽  
Vol 115 (4) ◽  
pp. 1453-1459 ◽  
Author(s):  
I. Simko ◽  
S. McMurry ◽  
H. M. Yang ◽  
A. Manschot ◽  
P. J. Davies ◽  
...  

1993 ◽  
Vol 87 (2) ◽  
pp. 203-210 ◽  
Author(s):  
Mohammed Qamaruddin ◽  
Ingegerd Dormling ◽  
Inger Ekberg ◽  
Gosta Eriksson ◽  
Elisabeth Tillberg

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