SUO Rong-zhen,WANG Ming-jiu,LIU Xue-jiao,et al.Photosynthesis Light Response Curves of Three Hybrid Soybean Strains and Model Fitting[J].Soybean Science,2017,36(04):561-568.[doi:10.11861/j.issn.1000-9841.2017.04.0561]
3个野生大豆与栽培大豆杂交后代品系的光合光响应曲线及模型拟合
- Title:
- Photosynthesis Light Response Curves of Three Hybrid Soybean Strains and Model Fitting
- Keywords:
- Hybrid soybeans; Light response curve; Light response model; Photosynthetic parameters; Photosynthetic characteristics
- 文献标志码:
- A
- 摘要:
- 以3个野生大豆与栽培大豆杂交后代品系0004、0005和9002为研究对象，并以父本野生大豆为对照，选用4种常用的光响应模型（直角双曲线模型、非直角双曲线模型、修正的直角双曲线模型和指数函数模型）对其进行光响应曲线的拟合，判断这些模型的适宜性，并比较3个杂交后代品系及其父本光合特性的差异。结果表明：这4种模型均可对试验材料进行拟合，决定系数R2＞0.98。但由于直角双曲线模型、非直角双曲线模型和指数函数模型无法求取试验材料最大净光合速率及光饱和点，求得的拟合值不仅与实测值相差较大，也反映不出光抑制现象。而修正的直角双曲线模型则可以克服以上问题，更适用于本试验材料的研究。通过对4个供试材料光合参数的综合比较，认为品系9002具有较好的光合特性，对光的适应能力最强。
- Abstract:
- In this experiment,three strains that were obtained by crossing Glycine soja Sieb.et Zucc. and Glycine max(L)Men.were selected as the research objects and the male parent Glycane sofa. was used as control(CK). Four typical models of photosynthesis light response curve,such as rectangular hyperbolic model, non-rectangular hyperbolic model, modified rectangular hyperbolic model and exponential function model were adopted to fit the photosynthesis light response curves of the test materials. The aim was to determine the model’s suitability used for hybrid soybeans and compare the differences in photosynthetic characteristics between the three strains and the male parent.The results showed that these four models could fit the photosynthesis light response curves of strain 0004, strain 0005, strain 9002 and CK (R2>0.98). Because the rectangular hyperbola model, non-rectangular hyperbola model and exponential equation model were unable to calculate maximum net photosynthetic rate (Pn- max) and saturation point(Isat) of plants and the fitting values were different from the measured values, the phenomenon of photoinhibition could not reflected either. Only the modified rectangular hyperbolic model could solve the questions mentioned above very well,which was suitable for this study. Through the comparison of the photosynthetic parameters of the four tested materials, the strain 9002 showed the best photosynthetic characteristics and the strongest light adaptability.cs and the strongest light adaptability.
参考文献/References:
［1］王忠.植物生理学［M］.北京：中国农业出版社,2009(Wang Z.Plant physiology［M］.Beijing:China Agriculture Press,2009) ［2］黄红英,窦新永,孙蓓育,等.两种不同生态型麻疯树夏季光合特性的比较［J］.生态学报,2009,29 （6）:2861-2867(Huang H Y, Dou Y X, Sun B Y, et al.Comparison of photosynthetic in two ecotypes of Jatropha curcas in summer［J］.Acta Ecologica Sinca,2009,29（6）:2861-2867.)?
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备注/Memo
基金项目：国家重大科技专项（2016YFC0500605）。