搜索结果: 1-8 共查到“农学 spectra”相关记录8条 . 查询时间(0.14 秒)
An efficient method to reduce grain angle influence on NIR spectra for predicting extractives content from heartwood stem cores of Toona. Sinensis
NIR spectra heartwood stem cores Toona. Sinensis grain angle
2023/6/5
A fast, reliable and non-destructive method is needed to qualify the extractives content (EC) in heartwood of T. sinensis cores in the breeding program for studying the genetic effect on EC. However, ...
Influence of droplet spectra on the efficiency of contact fungicides and mixtures of contact and systemic fungicides
Phytophthora infestans fungicides water volume droplet size droplet density
2015/2/6
The effects of droplet spectra, spray volume, and the addition of an adjuvant to the spray solution against Phytophthora infestans were evaluated using contact fungicides, mixtures of contact and syst...
Influence of Feed Form on Gizzard Morphology and Particle Size Spectra of Duodenal Digesta in Broiler Chickens
feed form wheat particle size gizzard morphology broiler chickens
2009/7/30
We examined gizzard morphology and diet particle size reduction in broiler chickens fed a wheat-based diet that was offered in either a mash or a pelleted form. The pelleted diet had a lower proportio...
Analysis of Common Canopy Reflectance Spectra for Indicating Leaf Nitrogen Concentrations in Wheat and Rice
Canopy reflectance spectra Leaf nitrogen concentration NDVI Rice RVI Wheat
2009/7/23
Non-destructive monitoring and diagnosis of plant nitrogen (N) concentration are of significant importance for precise N management and productivity forecasting in field crops. The present study was c...
脐橙VC含量近红外光谱消噪小波优化（Wavelet Optimization for Near-infrared Spectra Denoising of Vitamin C Content of Umbilical Orange）
脐橙 近红外光谱 小波基
2009/5/22
运用db1～db10等10个小波基4尺度分解对120个赣州脐橙样品的近红外光谱进行消噪处理，分别建立了各种小波消噪光谱的脐橙维生素C(VC)含量的PLS模型。通过PLS模型预测精度比较表明：所有db小波基变换都能有效消除脐橙VC近红外光谱噪声，PLS模型预测精度均高于不处理光谱建立的模型预测精度。其中，消噪效果最好的小波基是db5，模型预测值与实测值的相关系数R达到0.9427、内部交叉验证均方差...
Reflectance spectrophotometry of bruising in potatoes. II. acquisition of spectra in the visible spectrum with an integrating sphere
Solanum tuberosum L. quality damage internal
2008/11/12
Diffuse reflectance spectra from 400 to 700 nm were measured with an integrating sphere from bruised and unbruised, unpeeled and peeled tubers cvs. Desiree, Pentland Dell and Record. Stepwise discrimi...
Emmer wheat Rudico can extend the spectra of cultivated plants – Short Communication
emmer wheat grain yield protein content legal protection
2014/3/13
Emmer wheat (Triticum dicoccum Schübl. or also T. dicoccon Schrank) tetraploid wheat species was grown in the Czech territory till the 6th century A.D. when it was replaced by bread wheat. At present ...
ON THE NUMBER OF RGB COLOURS WE CAN DISTINGUISH PARTITION SPECTRA
partition-colour-spectra RGB-cube HSV-space ordering colours reshuffling by hues
2010/3/24
Colour vision is a physiological phenomenon, and rays are not coloured (Newton, Wright).
While counting hues of solar spectrum is a solved problem, the exact number of colours is unknown.Existing col...