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| Content Provider | Springer Nature Link |
|---|---|
| Author | Wang, F. L. Wang, H. Wang, G. |
| Copyright Year | 2007 |
| Abstract | Two cultivars (Katy and Erhuacao) of apricot (Prunus armeniaca L.) were evaluated under open-field and solar-heated greenhouse conditions in northwest China, to determine the effect of photosynthetic photon flux density (PPFD), leaf temperature, and CO$_{2}$ concentration on the net photosynthetic rate (P $_{N}$). In greenhouse, Katy registered 28.3 µmol m$^{−2}$ s$^{−1}$ for compensation irradiance and 823 µmol m$^{−2}$ s$^{−1}$ for saturation irradiance, which were 73 and 117 % of those required by Erhuacao, respectively. The optimum temperatures for cvs. Katy and Erhuacao were 25 and 35 °C in open-field and 22 and 30 °C in greenhouse, respectively. At optimal temperatures, P $_{N}$ of the field-grown Katy was 16.5 µmol m$^{−2}$ s$^{−1}$, 21 % less than for a greenhouse-grown apricot. Both cultivars responded positively to CO$_{2}$ concentrations below the CO$_{2}$ saturation concentration, whereas Katy exhibited greater P $_{N}$ (18 %) and higher carboxylation efficiency (91 %) than Erhuacao at optimal CO$_{2}$ concentration. Both cultivars exhibited greater photosynthesis in solar-heated greenhouses than in open-field, but Katy performed better than Erhuacao under greenhouse conditions. |
| Starting Page | 59 |
| Ending Page | 64 |
| Page Count | 6 |
| File Format | |
| ISSN | 03003604 |
| Journal | Photosynthetica |
| Volume Number | 45 |
| Issue Number | 1 |
| e-ISSN | 15739058 |
| Language | English |
| Publisher | Kluwer Academic Publishers-Consultants Bureau |
| Publisher Date | 2007-01-01 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Plant Physiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Plant Science |
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