论文部分内容阅读
田间试验结果表明:①不同早稻品种的光谱特性,在抽穗前主要受水稻株型(叶片倾斜和披叶程度)的影响;在抽穗期和灌浆期,主要受稻穗(数量及成熟度)的影响。②不同早稻品种的光谱变量与农学参数之间,在抽穗前相关密切,相关系数高,用光谱变量可以估测农学参数;在抽穗后,由于受穗的光谱和天气的影响,它们之间相关较差,如何建立理想的相关模式尚需进一步深入研究。
The results of field experiments showed that: (1) The spectral characteristics of different early rice varieties were mainly affected by rice plant type (leaf tilt and leaf loosening degree) before heading; at heading and filling stage, the spectral characteristics were mainly affected by rice panicle (number and maturity) influences. ② The correlation coefficients between spectral variables and agronomic parameters of different early rice varieties were close before heading, and the correlation coefficient was high. Spectral variables were used to estimate agronomic parameters. After heading, due to the spectrum of sunshine and the weather, they were correlated Poor, how to establish the ideal correlation mode needs further study.