Home > Archive>Volume 32, Issue 4, 2024 >531-539. DOI:10.11926/jtsb.4777
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Fitting Analysis of Light Response Models of Michelia chapensis Seedlings Under Different Light Environments
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    Abstract:

    To elucidate the light response characteristics and the applicability of the light response model of Michelia chapensis under different light intensities, one-year-old M. chapensis seedlings were grown under five light intensities, including 100%, 70%, 50%, 30% and 10% of nature light. The light response curves were measured and fitted by five models, such as rectangular hyperbola model (RH), nonrectangular hyperbola model (NRH), exponential model (EM), modified rectangular hyperbola model (MRH) and modified exponential model (MEM). Then, the fitting effects of the five models were comprehensively evaluated by using Ra2, MAE and MSE combined with the measured values and fitting values of photosynthetic parameters. The results showed that the light response curves of M. chapensis under different light intensities fitted by RH, NRH and EM model did not conform to its photosynthetic-light response characteristics. The photosynthetic parameters fitted by the MRH models were the closest to the measured values, followed by the MEM model. Therefore, the MRH model has high fitting accuracy and applicability and is the most suitable model for fitting the photosynthetic light response characteristics of M. chapensis under different light intensities.

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周欢,韦如萍,李吉跃,苏艳,胡德活,郑会全.乐昌含笑幼苗在不同光照环境下的光响应模型拟合分析[J].热带亚热带植物学报,2024,32(4):531~539

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  • Received:February 10,2023
  • Revised:April 25,2023
  • Online: August 21,2024
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