Arabidopsis Genotypes with Differing Levels of psbS Expression Differ in Photosystem II Quantum Yield, Xanthophyll Cycle Pool Size, and Aboveground Growth

2008 ◽  
Vol 169 (5) ◽  
pp. 597-604 ◽  
Author(s):  
B. A. Logan ◽  
S. G. Terry ◽  
K. K. Niyogi
Keyword(s):  
Quantum Yield ◽  
Photosystem Ii ◽  
Xanthophyll Cycle ◽  
Pool Size ◽  
Aboveground Growth ◽  
Photosystem Ii Quantum Yield

Stalk rot resistant sorghum genotypes are resilient to pathogen-mediated photosystem II quantum yield retardation

2019 ◽  
Vol 124 ◽  
pp. 104852 ◽  
Author(s):  
Ananda Y. Bandara ◽  
Dilooshi K. Weerasooriya ◽  
Tesfaye T. Tesso ◽  
Christopher R. Little
Keyword(s):  
Quantum Yield ◽  
Photosystem Ii ◽  
Stalk Rot ◽  
Sorghum Genotypes ◽  
Photosystem Ii Quantum Yield

Photosystem II quantum yield as a measure of radical scavengers in chilling injury in cucumber fruits and bell peppers

Planta ◽  
1994 ◽  
Vol 194 (4) ◽  
pp. 478-486 ◽  
Author(s):  
L. M. M. Tijskens ◽  
E. C. Otma ◽  
O. van Kooten
Keyword(s):  
Quantum Yield ◽  
Photosystem Ii ◽  
Chilling Injury ◽  
Radical Scavengers ◽  
Bell Peppers ◽  
Photosystem Ii Quantum Yield

Delayed fluorescence, steady state fluorescence, photosystem II quantum yield as endpoints for toxicity evaluation of Cu2+ and Ag+

2016 ◽  
Vol 130 ◽  
pp. 174-180 ◽  
Author(s):  
Sebastian M. Strauch ◽  
Peter R. Richter ◽  
Ferdinand W.M. Haag ◽  
Marcus Krüger ◽  
Julia Krüger ◽  
...  
Keyword(s):  
Steady State ◽  
Quantum Yield ◽  
Photosystem Ii ◽  
Delayed Fluorescence ◽  
Toxicity Evaluation ◽  
Steady State Fluorescence ◽  
Photosystem Ii Quantum Yield

scholarly journals Nitrogen and Phosphorus Addition to Soil Improves Seed Yield, Foliar Stomatal Conductance, and the Photosynthetic Response of Rapeseed (Brassica napus L.)

Agriculture ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 483
Author(s):  
Esmaeil Zangani ◽  
Kamran Afsahi ◽  
Farid Shekari ◽  
Eileen Mac Sweeney ◽  
Andrea Mastinu
Keyword(s):  
Stomatal Conductance ◽  
Quantum Yield ◽  
Photosystem Ii ◽  
Chlorophyll Content ◽  
Seed Yield ◽  
Nitrogen Application ◽  
Flowering Stage ◽  
Nitrogen And Phosphorus ◽  
Brassica Napus L ◽  
Phosphorus Levels

The effects of nitrogen and phosphorus levels on the physiological traits, yield, and seed yield of rapeseed (Brassica napus L.), were studied in a farm research project of Zanjan University. Three levels of nitrogen (0, 100, and 200 kg/ha) and three levels of phosphorus (0, 75, and 150 kg/ha) were considered. The results showed that an increase in nitrogen level caused an increase in the leaf chlorophyll content so that the application of 200 kg/ha of nitrogen increased the chlorophyll content of the leaves until the mid-grain filling stage. Nitrogen application lowered leaf stomatal conductance in the early flowering stage whereas the stomatal conductance was increased during the late flowering stage. Nitrogen application (100 and 200 kg/ha) also increased the quantum yield of photosystem II. On the other hand, with the application of 150 kg/ha and 75 kg/ha of phosphorus, the leaf stomatal conductance and the quantum yield of photosystem II in the early flowering stage increased respectively. The results showed that the application of 200 kg/ha of nitrogen and 75 kg/ha of phosphorus significantly increased seed and oil yield compared to the control. In addition, the number of siliques per plant and the weight of 1000 seeds showed an increasing trend that was affected by nitrogen and phosphorus levels. This study demonstrated that nitrogen enhanced the chlorophyll content, leaf area, and consequently, the quantum yield of photosystem II. Nitrogen also augmented the seed filling duration, seed yield, and oil yield by increasing gas exchange. As a result, the application of 100 kg/ha of nitrogen together with 75 kg/ha phosphorus showed the greatest effect on the qualitative and quantitative yield of rapeseed. However, the application of 200 kg/ha of nitrogen alone or in combination with different levels of phosphorus did not significantly increase many of the studied traits.

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