籽粒的外观品质与冠层光谱特征之间的关系不明显。
The correlation between grain appearance quality and spectral reflectance characteristics were only slight but not significant.
本文通过对4个感染不同等级稻叶瘟的水稻冠层反射光谱进行测试，并对光谱反射曲线进行微分分析，研究了绿光区、红光区和近红外区反射光谱的变异特征。
Rice spectrum features at green, red and near infrared regions were studied by measuring and analysing rice canopy reflectance and differential spectrums with 4 levels of rice leaf blast.
研究了不同土壤水氮条件下水稻冠层光谱反射特征与植株水分状况的量化关系。
Relationship between canopy reflectance characteristics and plant water status under different water and nitrogen levels was studied.
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