| 尤海磊,胡希远,高金锋,李建平.不同荞麦品种生长模型和生长特性的比较研究[J].干旱地区农业研究,2010,28(2):53~58 |
| 不同荞麦品种生长模型和生长特性的比较研究 |
| Comparison of different growth models and features of buckwheat |
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| DOI：10.7606/j.issn.1000-7601.2010.02.11 |
| 中文关键词: 荞麦 生长模型 拐点 |
| 英文关键词:buckwheat growth model inflexion point |
| 基金项目:国家自然科学基金项目(30571072) |
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| 中文摘要: |
| 选用Logistic、Gompertz、Richards、Mitscherlich和Korf等5种理论生长方程对榆荞2号、九江苦荞和西农9920荞麦品种的植株生长发育变化进行模拟，并对拟合效果进行对比分析。结果表明，除Mitscherlich对榆荞2号和西农9920地上部干重变化的拟合精度较低以外，其它模型拟合各品种地上部干重变化的精度都在0.90～0.94之间，拟合株高变化的精度都在0.96～0.992之间。其中Logistic模型的拟合精确度最高。 |
| 英文摘要: |
| Based on the data collected from trials in three buckwheat plantations in Yangling, Shaanxi Province, five growth equations were utilized to establish the correlation between growing days and growth factors including plant height and shoot dry weight. The fitting effect of these equations was compared. It was found that R2 of growth model established the correlation between growing days and plant height with each equation was between 0.96 and 0.992; R2 of growth model established the correlation between growing days and shoot dry weight with each equation was between 0.90 and 0.94 except that of fitting the growing days and shoot dry weight of Yuqiao2 as well as Xinong9920 with Mitscherlich equation, which was less than 0.88. Logistic equations fitted the correlation between growing days and growth factors best. |
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