AM350便攜式葉面積儀是一種野外使用的便攜式手持葉面積儀,可快速、精確、無損地在野外測量植物葉面積及其相關(guān)參數(shù)。主要用于葉面積等相關(guān)參數(shù)測量和植物葉片受損、變色或病態(tài)等分析。
原理:
AM350由一個高分辨率的掃描儀和掃描板組成,運用高速掃描傳感器技術(shù),掃描葉片,且能夠保存數(shù)據(jù)和掃描圖。
應(yīng)用領(lǐng)域:
? 農(nóng)學(xué)
? 植物學(xué)
? 生態(tài)學(xué)
? 昆蟲學(xué)
? 園藝學(xué)
? 植物生理學(xué)
主要優(yōu)點:
? 實時圖像顯示
? 高分辨率為0.065mm2,可以精準(zhǔn)的測量很小的葉片,包括:擬南芥;AM300也可以用于測量根面積,菌絲面積
? 真正的野外便攜式,輕便,滿電情況下,可連續(xù)測量3000次
? 無損測量
? 簡單快速測量,無需固定葉片位置
? 整體數(shù)據(jù)和圖像存儲
? USB下載圖像和數(shù)據(jù)
組成:
掃描器,掃描板,電池充電器,使用手冊
技術(shù)參數(shù):
? 測量參數(shù):葉面積,葉長,葉寬,葉周長,平均葉面積,累計葉面積,比率和形狀系數(shù),并且可以存儲掃描葉片的黑白圖片
? 測量單位:mm或cm(用戶可選)
? 掃描器:內(nèi)置LED光源的接觸式圖像傳感器陣列
? 掃描速度:20mm/s
? 測量寬度:103mm
? 測量長度:2m
? 精度:長,寬+/-1%,面積+/-2%,周長+/-5%
? 分辨率:0.065mm2
? 內(nèi)存:256kB RAM,大約2000組數(shù)據(jù)
? 顯示器:64×240像素LCD顯示器
? 電池:內(nèi)置1.2Ah鎳氫電池包
? 充電:電源適配器或者12V電池充電,具備電池狀態(tài)指示燈
? 續(xù)航時間:每次充電后可進(jìn)行約3000次測量
? 電腦接口:Mini-BUSB接口和RS232接口
? 工作溫度:0℃ - 45℃
? 尺寸:275mm×250mm×30mm
? 重量:1.8 kg
典型應(yīng)用
Estimating the Leaf Area of Cut Roses in Different Growth Stages Using Image Processing and Allometrics
本文借助AM350葉面積儀和數(shù)字圖像處理技術(shù)研究了玫瑰葉片的異速生長情況,驗證兩種方法相關(guān)性,對模型作了預(yù)測。
產(chǎn)地:英國
發(fā)表文獻(xiàn):
1. Impact of Vertical Canopy Position on Leaf Spectral Properties and Traits across Multiple Species, Tawanda W. Gara , Roshanak Darvishzadeh, Andrew K. Skidmore and Tiejun Wang, Remote Sens. 2018, 10, 346
2. Estimating the Leaf Area of Cut Roses in Different Growth Stages Using Image Processing and Allometrics, Ana Patrícia Costa, Isabel P??as and Mário Cunha, Horticulturae 2016, 2, 6
3. Influence of cover crop treatments on the performance of a vineyard in a humid region, Emiliano Trigo-Córdoba, Yolanda Bouzas-Cid et al. Spanish Journal of Agricultural Research, 13(4), e0907, 12 pages (2015)
4. Evapotranspiration measurement and estimation using modified Priestley–Taylor model in an irrigated maize field with mulching, R Ding, et. al, Agricultural and Forest Meteorology, 2013
5. Multiscale spectral analysis of temporal variability in evapotranspiration over irrigated cropland in an arid region, R Ding, et. al, Agricultural Water Management, 2013
6. Determination of single and dual crop coefficients and ratio of transpiration to evapotranspiration for canola, Majnooni-Heris, et. al, Annals of Biological Research, 2012
7. Whole-Tree Water Use Efficiency Is Decreased by Ambient Ozone and Not Affected by O3-Induced Stomatal Sluggishness, Y Hoshika, et. al, PloS one, 2012
8. Water stress drastically reduces root growth and inulin yield in Cichorium intybus (var. sativum) independently of photosynthesis, B Vandoorne, et. al, J. Exp. Bot., 2012
9. Chloroplastidic pigments, gas exchange, and carbohydrates changes during Carapa guianensis leaflet expansion, FKC Moraes, et. al, Photosynthetica, 2011