5-Aminolevulinic acid enhances photosynthetic gas exchange, chlorophyll fluorescence and antioxidant system in oilseed rape under drought stress

2013 ◽  
Vol 35 (9) ◽  
pp. 2747-2759 ◽  
Author(s):  
Dan Liu ◽  
Lingtong Wu ◽  
Muhammad Shahbaz Naeem ◽  
Hongbo Liu ◽  
Xiangqin Deng ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Drought Stress ◽  
Gas Exchange ◽  
Oilseed Rape ◽  
Antioxidant System ◽  
Aminolevulinic Acid ◽  
Photosynthetic Gas Exchange

scholarly journals Drought Response of Young Apple Trees on Three Rootstocks. II. Gas Exchange, Chlorophyll Fluorescence, Water Relations, and Leaf Abscisic Acid

1997 ◽  
Vol 122 (6) ◽  
pp. 841-848 ◽  
Author(s):  
R. Thomas Fernandez ◽  
Ronald L. Perry ◽  
James A. Flore
Keyword(s):  
Abscisic Acid ◽  
Chlorophyll Fluorescence ◽  
Drought Stress ◽  
Gas Exchange ◽  
Water Relations ◽  
Acid Content ◽  
Recovery Period ◽  
Leaf Conductance ◽  
Apple Trees ◽  
Abscisic Acid Content

`Imperial Gala' apple trees (Malus ×domestica Borkh.) on M.9 EMLA, MM.111, and Mark rootstocks were subjected to two drought-stress and recovery periods in a rainshelter. Water relations, gas-exchange parameters per unit leaf area and per tree, chlorophyll fluorescence, and leaf abscisic acid content were determined during each stress and recovery period. Whole-plant calculated gas exchange best indicated plant response to drought stress, with consistent reductions in CO2 assimilation, transpiration, and leaf conductance. Variable and maximal chlorophyll fluorescence and fluorescence quenching were not as sensitive to stress. Other fluorescence parameters showed little difference. The most consistent decreases due to stress for gas exchange per square meter were in transpiration and leaf conductance, with few differences in CO2 assimilation and fewer for mesophyll conductance, internal CO2 concentration, and water-use efficiency. Leaf water potential was consistently lower during drought stress and returned to control values upon irrigation. Leaf abscisic acid content was higher for drought-stressed trees on M.9 EMLA than control trees during the stress periods but inconsistently different for the other rootstock treatments. Trees on M.9 EMLA were least affected by drought stress, MM.111 was intermediate, and Mark was the most sensitive; these results are consistent with the growth data.

Influence of drought stress on the growth, leaf gas exchange, and chlorophyll fluorescence in two varieties of tung tree seedlings

2017 ◽  
Vol 37 (5) ◽  
Author(s):  
李泽 LI Ze ◽  
谭晓风 TAN Xiaofeng ◽  
卢锟 LU Kun ◽  
张琳 ZHANG Lin ◽  
龙洪旭 LONG Hongxu ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Drought Stress ◽  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Tree Seedlings ◽  
Tung Tree

Drought stress affects on growth, water use efficiency, gas exchange and chlorophyll fluorescence of Juglans rootstocks

2019 ◽  
Vol 250 ◽  
pp. 230-235 ◽  
Author(s):  
Binghua Liu ◽  
Jing Liang ◽  
Guimin Tang ◽  
Xiaofang Wang ◽  
Fangchun Liu ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Drought Stress ◽  
Gas Exchange ◽  
Water Use Efficiency ◽  
Water Use ◽  
Use Efficiency
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