scholarly journals Photosynthetic Gas Exchange Characteristics of Wheat Flag Leaf Blades and Sheaths during Grain Filling

1987 ◽  
Vol 85 (3) ◽  
pp. 667-673 ◽  
Author(s):  
José L. Araus ◽  
Luis Tapia
Keyword(s):  
Gas Exchange ◽  
Flag Leaf ◽  
Grain Filling ◽  
Photosynthetic Gas Exchange ◽  
Gas Exchange Characteristics

scholarly journals Photosynthetic gas exchange characteristics in Jatropha curcas L.

2012 ◽  
Vol 29 (2) ◽  
pp. 155-162 ◽  
Author(s):  
Yasunori Fukuzawa ◽  
Jun Tominaga ◽  
Kinya Akashi ◽  
Shin Yabuta ◽  
Masami Ueno ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Jatropha Curcas ◽  
Photosynthetic Gas Exchange ◽  
Gas Exchange Characteristics

scholarly journals Growth and physiological performance responses to drought stress under non-flooded rice cultivation with straw mulching

2010 ◽  
Vol 56 (No. 2) ◽  
pp. 51-59 ◽  
Author(s):  
J. Qin ◽  
X. Wang ◽  
F. Hu ◽  
H. Li
Keyword(s):  
Flag Leaf ◽  
Early Period ◽  
Grain Filling ◽  
Antioxidant Enzyme Activity ◽  
Straw Mulching ◽  
Flooded Rice ◽  
Significant Difference ◽  
Rice Yields ◽  
Change Tendency ◽  
Soil Moisture Status

A field experiment was performed to investigate the growth performance and the growth stage-dependent changes in activities of antioxidative enzymes and concentration of malondialdehyde (MDA) in leaves of rice subjected to treatment with (NF-M) or without straw mulching (NF-WM) under non-flooded conditions compared with continuously flooded treatment (CF). Compared with the NF-WM treatment, mulch application significantly increased the flag leaf area per plant before heading, tillers number and plant height at the early period of tillering stage. There was no significant difference between the yield of the NF-WM and CF treatment. However, the yield of NF-WM treatment was significantly lower than CF and NF-M treatments. Significantly higher activities of peroxidase (POD) and catalase (CAT) but lower concentration of superoxide dismutase (SOD) and malondialdehyde (MDA) were observed in straw mulching treatment than in treatment without mulching at elongation, heading and grain filling stages. The change tendency of antioxidant enzyme activity and MDA level was in line both with soil moisture status and rice yields of different treatments.

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