Roy D. Hartley

6.6k total citations · 2 hit papers
92 papers, 5.3k citations indexed

About

Roy D. Hartley is a scholar working on Plant Science, Agronomy and Crop Science and Nutrition and Dietetics. According to data from OpenAlex, Roy D. Hartley has authored 92 papers receiving a total of 5.3k indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Plant Science, 34 papers in Agronomy and Crop Science and 17 papers in Nutrition and Dietetics. Recurrent topics in Roy D. Hartley's work include Ruminant Nutrition and Digestive Physiology (33 papers), Polysaccharides and Plant Cell Walls (11 papers) and Microbial Metabolites in Food Biotechnology (10 papers). Roy D. Hartley is often cited by papers focused on Ruminant Nutrition and Digestive Physiology (33 papers), Polysaccharides and Plant Cell Walls (11 papers) and Microbial Metabolites in Food Biotechnology (10 papers). Roy D. Hartley collaborates with scholars based in China, United Kingdom and United States. Roy D. Hartley's co-authors include Philip J. Harris, Edwin Jones, David Whitehead, W. Herbert Morrison, W S Borneman, J. C. O'Kelly, I. Mueller‐Harvey, D. E. Akin, Danny E. Akin and Eirian H. Curzon and has published in prestigious journals such as Nature, American Journal of Clinical Nutrition and Applied and Environmental Microbiology.

In The Last Decade

Roy D. Hartley

92 papers receiving 4.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Occurrence and nature of ferulic acid substitution of cell-wall polysaccharides in graminaceous plants

1983 368 citations Roy D. Hartley et al. profile →
Detection of bound ferulic acid in cell walls of the Gramineae by ultraviolet fluorescence microscopy

1976 343 citations Philip J. Harris, Roy D. Hartley Nature profile →

Peers

Countries citing papers authored by Roy D. Hartley

Since Specialization

Citations

This map shows the geographic impact of Roy D. Hartley's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Roy D. Hartley with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roy D. Hartley more than expected).

Fields of papers citing papers by Roy D. Hartley

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roy D. Hartley. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Roy D. Hartley. The network helps show where Roy D. Hartley may publish in the future.

Co-authorship network of co-authors of Roy D. Hartley

This figure shows the co-authorship network connecting the top 25 collaborators of Roy D. Hartley. A scholar is included among the top collaborators of Roy D. Hartley based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Roy D. Hartley. Roy D. Hartley is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Distribution of Aromatic Compounds in Coastal Bermudagrass Cell Walls Using Ultraviolet Absorption Scanning Microspectrophotometry 1992 ·Digital Commons - USU (Utah State University) ·Nancy Ames, Roy D. Hartley, Danny E. Akin	2
2	Phenolic constituents of cell wall types of normal and brown midrib mutants of pearl millet (Pennisetum glaucum (L) R Br) in relation to wall biodegradability 1992 ·Journal of the Science of Food and Agriculture ·Roy D. Hartley, W. Herbert Morrison, W S Borneman, Luanne L. Rigsby, Malcolm A. O’Neill, Wayne W. Hanna, Danny E. Akin	17
3	Purification and partial characterization of two feruloyl esterases from the anaerobic fungus Neocallimastix strain MC-2 1992 ·Applied and Environmental Microbiology ·W S Borneman, L G Ljungdahl, Roy D. Hartley, D. E. Akin	89
4	Isolation and characterization of p-coumaroyl esterase from the anaerobic fungus Neocallimastix strain MC-2 1991 ·Applied and Environmental Microbiology ·W S Borneman, L G Ljungdahl, Roy D. Hartley, D. E. Akin	72
5	Assay for trans-p-coumaroyl esterase using a specific substrate from plant cell walls 1990 ·Analytical Biochemistry ·W S Borneman, Roy D. Hartley, David S. Himmelsbach, Lars G. Ljungdahl	63
6	Fast atom bombardment mass spectrometry of polyphenols (syn. vegetable tannins) 1986 ·Journal of Mass Spectrometry ·R. Self, John Eagles, Guido C. Galletti, I. Mueller‐Harvey, Roy D. Hartley, Andrew G. H. Lea, Daniéle Magnolato, Urs Richli, (unknown), Edwin Haslam	63
7	Pyrolysis‐mass spectrometry of the phenolic constituents of plant cell walls 1984 ·Journal of the Science of Food and Agriculture ·Roy D. Hartley, Johan Haverkamp	34
8	Evaluation of stabilised diazonium salts for the detection of phenolic constituents of plant cell walls 1982 ·Journal of the Science of Food and Agriculture ·Philip J. Harris, Roy D. Hartley, (unknown)	28
9	Extractant ph and the release of phenolic compounds from soils, plant roots and leaf litter 1981 ·Soil Biology and Biochemistry ·David Whitehead, (unknown), Roy D. Hartley	130
10	Phenolic constituents of mesophyll and non‐mesophyll cell walls from leaf laminae of Lolium perenne 1980 ·Journal of the Science of Food and Agriculture ·Philip J. Harris, Roy D. Hartley, (unknown)	50
11	Effect of aqueous ammonia and other alkalis on the in‐vitro digestibility of barley straw 1978 ·Journal of the Science of Food and Agriculture ·Roy D. Hartley, Edwin Jones	56
12	The lignin fraction of plant cell walls 1978 ·American Journal of Clinical Nutrition ·Roy D. Hartley	22
13	Phenolic components and degradability of cell walls of grass and legume species 1977 ·Phytochemistry ·Roy D. Hartley, Edwin Jones	152
14	Diferulic acid as a component of cell walls of Lolium multiflorum 1976 ·Phytochemistry ·Roy D. Hartley, Edwin Jones	139
15	Prediction of the digestibility of forages by treatment of their cell walls with cellulolytic enzymes 1974 ·Journal of the Science of Food and Agriculture ·Roy D. Hartley, Edwin Jones, J. S. Fenlon	62
16	The separation and identification of selina-4(14),7(11)-diene, a new sesquiterpene from hops (humulus lupulus) 1969 ·Phytochemistry ·Roy D. Hartley, C. H. Fawcett	16
17	VOLATILE HOP CONSTITUENTS IN WORT 1968 ·Journal of the Institute of Brewing ·Roy D. Hartley	3
18	Identification of volatile, water-soluble compounds from hops (Humulus Lupulus L.) 1968 ·Phytochemistry ·Roy D. Hartley, C. H. Fawcett	11
19	EFFECT OF OIL CONTENT ON THE LOSS OF ALPHA-ACID FROM HOPS DURING STORAGE 1967 ·Journal of the Institute of Brewing ·Roy D. Hartley	14
20	Relationships between Constituents of Cones and Male Flowers of the Hop (Humulus lupulus, L.) 1965 ·Nature ·Roy D. Hartley, (unknown)	2

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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