MEASURING HERBICIDE INJURY TO SOYBEANS (GLYCINE-MAX) USING A RADIOMETER

被引：27

作者：

ADCOCK, TE ^{[1
]}

NUTTER, FW ^{[1
]}

BANKS, PA ^{[1
]}

机构：

[1] UNIV GEORGIA,DEPT AGRON,ATHENS,GA 30602

来源：

WEED SCIENCE | 1990年 / 38卷 / 06期

关键词：

D O I：

10.1017/S0043174500051602

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Light reflectance from soybean foliage was compared to visual evaluations for assessing soybean injury caused by postemergence-applied paraquat and glyphosate. Coefficients of variation and of determination from multiple linear regressions for both herbicides indicated that reflectance was better correlated with injury measured by changes in leaf number, leaf weight, and stem weight than visual evaluations. Correlation coefficients among radiometer readings taken by different individuals were greater-than-or-equal-to 0.98 for both herbicides. Correlation coefficients among visual evaluators ranged from 0.69 to 0.96 and from 0.74 to 0.94 for plots treated with paraquat and glyphosate, respectively. Light reflectance measured with a radiometer may be useful in evaluating injury from herbicides that cause chlorosis, necrosis, or defoliation of the target species.

引用

页码：625 / 627

页数：3

共 9 条

[1]

Amrhein N, 1982, JOURNEES INT ETUDES, VII, P21

[2]

ASHTON FM, 1981, MODE ACTION HERBICID, P164

[3] TETRAZOLIUM REACTION AS A MEASURE OF ACTION OF DIQUAT IN ELODEA [J].