Time | Photosynthesis^{z} (mgCO_{2}m^{−2}s^{−1}) | ||
---|---|---|---|

EDU Injection^{y} | EDU Drench^{x} | No EDU | |

0 | 0.313^{ab} | 0.345^{ab} | 0.314^{ab} |

2 | 0.374^{ab} | 0.287^{b} | 0.374^{ab} |

4 | 0.363^{ab} | 0.333^{ab} | 0.407^{a} |

7 | 0.294^{b} | 0.320^{ab} | 0.217^{c} |

↵

^{z}Photosynthesis measured on a single leaf from each seedling (plastochron index=5). Each value represents the mean of 5 consecutive measurements on each of 12 seedlings. Mean separation among all treatment-time combinations by Duncan’s new multiple range test, 5% level.↵

^{y}5 ml EDU (500 ppm) per seedling.↵

^{x}250 ml EDU (500 ppm) per container.