作物研究
作物研究
작물연구
Crop Research
2015年
5期
516-521,541
,共7页
黄智%昌宏涛%陈建%朱列书
黃智%昌宏濤%陳建%硃列書
황지%창굉도%진건%주렬서
烤烟%色素%冠层反射光谱%高光谱参数%诊断模型
烤煙%色素%冠層反射光譜%高光譜參數%診斷模型
고연%색소%관층반사광보%고광보삼수%진단모형
flue-cured tobacco%pigment%canopy reflectance spectra%hyperspectral parameters%diagnostic model
通过大田试验，研究了烤烟K326叶片色素含量与冠层高光谱之间的关系，构建了以高光谱参数为自变量的烤烟叶片色素含量的诊断模型。结果表明：冠层光谱反射率与叶绿素a、叶绿素b、叶绿素a＋b、类胡萝卜素含量显著相关的波段分别有769、797、782和818个，其中90％以上的波段呈显著负相关关系，相关性最高的波段分别为1846、1846、1846和1843 nm。各色素含量均与高光谱参数SDy的相关性最高，构建的函数模型分别为：y＝10373x2＋1096.2x＋29.803、y＝-0.0023x3-0.0256x2＋0.0559x-0.0665、y＝13387x2＋1421x＋38.803和 y＝10.451e76.029x。经差异性检验，估测值和实测值未达到显著水平，表明利用高光谱技术进行烤烟叶片色素含量的监测是可行的，可为烟田科学管理及决策提供技术支持。
通過大田試驗，研究瞭烤煙K326葉片色素含量與冠層高光譜之間的關繫，構建瞭以高光譜參數為自變量的烤煙葉片色素含量的診斷模型。結果錶明：冠層光譜反射率與葉綠素a、葉綠素b、葉綠素a＋b、類鬍蘿蔔素含量顯著相關的波段分彆有769、797、782和818箇，其中90％以上的波段呈顯著負相關關繫，相關性最高的波段分彆為1846、1846、1846和1843 nm。各色素含量均與高光譜參數SDy的相關性最高，構建的函數模型分彆為：y＝10373x2＋1096.2x＋29.803、y＝-0.0023x3-0.0256x2＋0.0559x-0.0665、y＝13387x2＋1421x＋38.803和 y＝10.451e76.029x。經差異性檢驗，估測值和實測值未達到顯著水平，錶明利用高光譜技術進行烤煙葉片色素含量的鑑測是可行的，可為煙田科學管理及決策提供技術支持。
통과대전시험，연구료고연K326협편색소함량여관층고광보지간적관계，구건료이고광보삼수위자변량적고연협편색소함량적진단모형。결과표명：관층광보반사솔여협록소a、협록소b、협록소a＋b、류호라복소함량현저상관적파단분별유769、797、782화818개，기중90％이상적파단정현저부상관관계，상관성최고적파단분별위1846、1846、1846화1843 nm。각색소함량균여고광보삼수SDy적상관성최고，구건적함수모형분별위：y＝10373x2＋1096.2x＋29.803、y＝-0.0023x3-0.0256x2＋0.0559x-0.0665、y＝13387x2＋1421x＋38.803화 y＝10.451e76.029x。경차이성검험，고측치화실측치미체도현저수평，표명이용고광보기술진행고연협편색소함량적감측시가행적，가위연전과학관리급결책제공기술지지。
A field experiment was conducted to study the relationship between pigment content and canopy height spectrum in the flue-cured tobacco variety K326,and diagnosis models of pigment content in flue-cured tobacco leaves were con-structed with hyperspectral characteristic parameters as the independent variable. The results showed that:the original spectral reflectance was related with pigment content of leaves significantly. In the whole wavelength range,there were 769,797,782 and 818 wave bands significantly related with that chlorophyll a,chlorophyll b,chlorophyll a +b and carote-noid content respectively,and more than 90% of which showed significant negatively relationship,and the highest correla-tion bands were 1 846 nm、1 846 nm、1 846 nm and 1 843 nm respectively. Each pigment content showed highest correla-tion with SDy,and the function models were y=10373x2 +1096. 2x+29. 803,y=-0. 0023x3 -0. 0256x2 +0. 0559x-0. 0665,y=13387x2 +1421x+38. 803 and y=10. 451e76.029x respectively. By SPSS analysis,the difference between esti-mate values of pigment content and their true values were not different. Therefore,monitoring leaf pigment content in flue-cured tobacco by hyperspectral technology was feasible,which could provide technical support for tobacco scientific man-agement and decision-making.
