High Efficiency Photosynthetic Characteristics in Flag Leaves of Super High-yielding Rice
歐志英(Zhi-Ying Ou)；彭長連(Chang-Lian Peng)；陽成偉(Chen-Wei Yang)；林桂珠(Gui-Zhu Lin)；段俊(Jun Duan)；溫學(Xue Wen)
高產水稻 ； 劍葉 ； 光合能力 ； 光碳失衡 ； 光抑制 ； Super high-yielding rice ； Flag leaves ； Photosynthetic capacity ； Photo-carbon imbalance ； Photoinhibition
|Volume or Term/Year and Month of Publication||
11卷1期（2003 / 03 / 01）
1 - 6
Two hybrid rice cultivars, super high-yielding Liangyoupeijiu (Pei'ai 64S×9311) and high-yielding Shanyou 63 (as control) grown in the field, were used to investigate the photosynthetic characteristics of high production during flag leaves development. It was shown that the contents of chlorophyll and Rubisco, the values of Fv/Fo, Fv/Fm, qP and Φ(subscript i) in flag leaves of cv. Liangyoupeijiu were higher than those of the control, indicating that the former had greater capacity and higher efficiency for light energy absorption, transformation and utilization. The value of qN was higher and 1-qP/qN was lower in Liangyoupeijiu than in Shanyou 63, showing that the former was more tolerant to photoinhibition. Photo-carbon imbalance appeared in both cultivars during senescence of flag leaves, but which was less apparent in cv. Liangyoupeijiu. These beneficial factors in photosynthesis in cv. Liangyoupeijiu might be of importance in high production of super high-yielding rice.
生物農學 > 生物環境與多樣性