摘要
为了对辣椒品种识别、生产及产量监测提供更加可靠的技术手段,分析了4个辣椒品种盛果期冠层反射光谱数据的差异及其与叶片全氮、叶片SPAD和地上干生物量之间的相关性。结果表明:盛果期的可见光波段和近红外波段冠层光谱反射率能容易地区别4个辣椒品种;叶片全氮含量敏感波段8819线椒为753nm,黔春201为698nm和764nm,日本三樱椒为494nm,遵义朝天椒为767nm;叶片SPAD敏感波段8819线椒为720nm,黔春201为726nm,日本三樱椒为548nm,遵义朝天椒为718nm;地上干生物量的敏感波段8819线椒为728nm和1 345nm,黔春201为727nm和1 145nm,日本三樱椒为690nm,遵义朝天椒为767nm。
In order to provide more reliable technical means for pepper variety recognition,production and yield monitoring,the spectral response variation of pepper canopy with different pepper varieties was analyzed,as well as the correlation between leave total nitrogen,leaf SPAD and aboveground dry biomass.Results：The canopy spectra reflectance in visible region and near infrared region could be used to differentiate the four pepper varieties.The canopy spectral at 753 nm,720nm,728 nm and 1 345 nm were the sensitive bands to monitor leaf total nitrogen,leaf SPAD and aboveground dry biomass of 8819 line pepper respectively.The canopy spectral at 698 nm and 764 nm,726nm,727 nm and 1 145 nm were the sensitive band to monitor leaf total nitrogen,leaf SPAD and aboveground dry biomass of Qianchun 201 pepper respectively.The canopy spectral at 408 nm and 1 124 nm,371nm,1 124 nm and 1 329 nm,690nm were the sensitive band to monitor leaf total nitrogen,leaf SPAD and aboveground dry biomass of Japanese three sakura pepper respectively.The canopy spectral at 494 nm and 767 nm,548nm and 718 nm,767nm were the sensitive bands to monitor leaf total nitrogen,leaf SPAD and aboveground dry biomass of Hot pepper in Zunyi respectively.
出处
《贵州农业科学》
CAS
北大核心
2014年第12期230-233,共4页
Guizhou Agricultural Sciences
基金
贵州省科技计划课题项目"都匀毛尖茶园病虫害调查及无害化治理技术研究与应用"[NY(2013)3081]
贵州省科技厅农业攻关项目"贵州茶树真菌病害检测体系的构建及生物防治研究"[黔科合NY字(2011)3045]
贵州省科学技术厅黔南州人民政府农业科技合作专项计划项目"黔南州水稻
茶树和葡萄等重要粮经作物重要病虫害绿色防控技术的研究与示范"(2013-01)
关键词
辣椒
冠层光谱反射率
全氮
SPAD
地上干生物量
pepper
canopy spectra reflectance
total nitrogen
SPAD
dry aboveground biomass
