Statistics
Publications
17
Citations
466
H-Index
12
Active since
1967
H. J. Hopen is an author at University of Illinois Urbana-Champaign specializing in agriculture, plant sciences, and plant biology.
Publications per year
1967–1993
17
17
Photodynamic herbicides: 1. Concept and phenomenology
Constantin A. Rebeiz, A. Montazer-Zouhoor, H. J. Hopen et al. · Enzyme and Microbial Technology · 1984 · 220 citations
Uptake, Translocation, and Adsorption of Pronamide
W. C. Carlson, E. M. Lignowski, H. J. Hopen · Weed Science · 1975 · 24 citations
Agriculture, Agronomy, Plant Biology +13
A Numerical Taxonomic Study of <i>Portulaca oleracea</i>
S. F. Gorske, A. M. Rhodes, H. J. Hopen · Weed Science · 1979 · 19 citations
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