Photosynthetica - Latest articles
Results 121 to 122 of 122:
Photosynthetic performance of walnut leaves during the occurrence of leaf scorch
S.W. WANG, C.J. XING, C.F. ZHANG, T. GUO, H.L. HAO, Z.Y. ZHANG, S. WANG, J.M. SHU
Photosynthetica 2023, 61(1):13-24 | DOI: 10.32615/ps.2023.003 
To clarify the effect of leaf scorch on walnut leaf photosynthesis, photosynthetic parameters were measured in Juglans regia 'Wen185' and 'Xinxin2' symptom trees (WS, XS) and symptomless trees (WH, XH). At the early stage of infection and under the low-grade leaf scorch, WS showed significantly lower net photosynthetic rate (PN), stomatal limitation (Ls), and higher intercellular CO2 concentration (Ci) than those of WH. However, at the mid to late stage of infection and under the high-grade leaf scorch, WS showed significantly lower PN, Ci, the maximal...
Diurnal changes in the stomatal, mesophyll, and biochemical limitations of photosynthesis in well-watered greenhouse-grown strawberries
G. YOKOYAMA, S. ONO, D. YASUTAKE, K. HIDAKA, T. HIROTA
Photosynthetica 2023, 61(1):1-12 | DOI: 10.32615/ps.2023.001
The diurnal variations in the factors of photosynthesis reduction under well-watered greenhouse conditions remain poorly understood. We conducted diurnal measurements of gas exchange and chlorophyll fluorescence in strawberries (Fragaria × ananassa Duch.) for three sunny days. Quantitative limitation analysis was also conducted to investigate the diurnal variations of photosynthetic limitations [stomatal (SL), mesophyll (MCL), and biochemical limitation (BL)]. Under well-watered greenhouse conditions, a photosynthesis reduction was observed, and the respective limitations exhibited...