光谱对水稻灌浆期剑叶光合及叶绿素荧光特性的影响
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李江鹏,刘海俊,黄志午,刘晓英,尤杰,徐志刚
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Effects of Spectral Distribution on Photosynthetic and Chlorophyll Fluorescence Characteristics of Flag Leaves at Grain Filling Stage in Rice
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JiangPeng LI,HaiJun LIU,ZhiWu HUANG,XiaoYing LIU,Jie YOU,ZhiGang XU
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表2 光响应曲线拟合光合参数
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Table 2 Related photosynthesis parameters of light response curve
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光合参数
Photosynthesis parameter | 处理 Treatment | | R660 | R630 | B460 | B440 | | 光响应曲线初始斜率 Initial slope of light response curve, α, mol·mol-1 (×10-2) | 4.73 | 4.14 | 5.81 | 3.03 | | 光抑制项 Photo-inhibition term, β, (m2·s)/天线色素分子-1 (×10-5) | 5.75 | 5.23 | 6.65 | 13.5 | | 光饱和项 Photo-saturation term, γ, (m2·s)/天线色素分子-1 (×10-3) | 1.90 | 1.70 | 1.50 | 0.90 | | 暗呼吸的量子效率 Quantum efficiency of dark respiration (×10-2) | 5.03 | 4.44 | 6.16 | 3.22 | | 补偿点的量子效率 Compensation point quantum efficiency (×10-2) | 4.45 | 3.86 | 5.48 | 2.85 | 捕光色素分子的本征光能吸收截面
Eigen-absorption cross-section of photosynthetic pigment molecule, σik, m2 (×10-20) | 4.25 | 3.49 | 4.86 | 3.46 | | 捕光色素分子数 Number of light-harvesting pigment molecule (No) (×1014) | 5.89 | 6.28 | 6.33 | 4.63 |
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