ANALYTICAL PYROLYSIS-PATTERN RECOGNITION FOR THE CHARACTERIZATION OF LEAFY SPURGE (EUPHORBIA-ESULA L) BIOTYPES

被引:6
作者
EVANS, JO [1 ]
TORELL, JM [1 ]
VALCARCE, RV [1 ]
SMITH, GG [1 ]
机构
[1] UTAH STATE UNIV,DEPT CHEM & BIOCHEM,LOGAN,UT 84322
关键词
ANALYTICAL PYROLYSIS; PATTERN RECOGNITION; EUPHORBIA-ESULA L; LEAFY SPURGE; EUPHORBIACEAE;
D O I
10.1111/j.1744-7348.1991.tb04842.x
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Curie-point pyrolysis-gas chromatography-pattern recognition was used to elucidate chemical variations within leafy spurge (Euphorbia spp.). Hierarchical cluster analysis (HCA) readily identified two major clusters corresponding to E. esula and E. cyparissias. The E. esula cluster further separated into three distinct subclusters. Results from principal components analysis (PCA) and fuzzy c-varieties (FCVPC) pattern recognition were similar, verifying the presence of three biotypes among the E. esula samples studied. It is suggested that analytical pyrolysis in combination with pattern recognition may predict the behaviour of biocontrol agents introduced into fields to control leafy spurge.
引用
收藏
页码:47 / 58
页数:12
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