O. A. Leonard

858 total citations
38 papers, 505 citations indexed

About

O. A. Leonard is a scholar working on Plant Science, Ecology, Evolution, Behavior and Systematics and Food Science. According to data from OpenAlex, O. A. Leonard has authored 38 papers receiving a total of 505 indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Plant Science, 6 papers in Ecology, Evolution, Behavior and Systematics and 5 papers in Food Science. Recurrent topics in O. A. Leonard's work include Plant Physiology and Cultivation Studies (6 papers), Horticultural and Viticultural Research (6 papers) and Plant Parasitism and Resistance (5 papers). O. A. Leonard is often cited by papers focused on Plant Physiology and Cultivation Studies (6 papers), Horticultural and Viticultural Research (6 papers) and Plant Parasitism and Resistance (5 papers). O. A. Leonard collaborates with scholars based in United States, Germany and Ireland. O. A. Leonard's co-authors include Richard Hull, J.G.C. Small, D. E. Bayer, R. K. Glenn, Robert J. Weaver, Walter Eschrich, Wolfgang Heyser, Eberhard Fritz, Clinton E. Carlson and I. O. Akobundu and has published in prestigious journals such as PLANT PHYSIOLOGY, Journal of Hydrology and Planta.

In The Last Decade

O. A. Leonard

35 papers receiving 391 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
O. A. Leonard United States	12	422	136	83	60	53	38	505
T. J. Muzik United States	13	377 0.9×	68 0.5×	98 1.2×	62 1.0×	92 1.7×	46	484
Fred A. Norstadt United States	11	392 0.9×	62 0.5×	26 0.3×	35 0.6×	51 1.0×	19	459
Sy Zee Australia	14	586 1.4×	102 0.8×	160 1.9×	120 2.0×	19 0.4×	27	711
L. Salsac France	13	450 1.1×	49 0.4×	53 0.6×	30 0.5×	18 0.3×	31	532
Eddie Basler United States	13	257 0.6×	42 0.3×	59 0.7×	14 0.2×	124 2.3×	34	368
Roy K. Nishimoto United States	15	476 1.1×	63 0.5×	35 0.4×	41 0.7×	118 2.2×	43	546
P. Chakravarty Canada	14	450 1.1×	73 0.5×	45 0.5×	21 0.3×	47 0.9×	39	591
E. A. Oelke United States	12	298 0.7×	73 0.5×	38 0.5×	57 0.9×	27 0.5×	38	363
William V. Welker United States	13	302 0.7×	40 0.3×	57 0.7×	26 0.4×	27 0.5×	40	369
Leo E. Bendixen United States	13	427 1.0×	52 0.4×	30 0.4×	51 0.8×	46 0.9×	33	458

Countries citing papers authored by O. A. Leonard

Since Specialization

Citations

This map shows the geographic impact of O. A. Leonard'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 O. A. Leonard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites O. A. Leonard more than expected).

Fields of papers citing papers by O. A. Leonard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by O. A. Leonard. 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 O. A. Leonard. The network helps show where O. A. Leonard may publish in the future.

Co-authorship network of co-authors of O. A. Leonard

This figure shows the co-authorship network connecting the top 25 collaborators of O. A. Leonard. A scholar is included among the top collaborators of O. A. Leonard 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 O. A. Leonard. O. A. Leonard 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

Jehanzaib, Muhammad, Raymond Flynn, O. A. Leonard, et al.. (2025). The influence of plantation forest legacy on blanket bog hydrology. Journal of Hydrology. 664. 134498–134498.

Heyser, Wolfgang, et al.. (1976). The influence of externally applied organic substances on phloem translocation in detached maize leaves. Planta. 132(3). 269–277. 16 indexed citations

Heyser, Wolfgang, et al.. (1975). The influence of light, darkness, and lack of CO2 on phloem translocation in detached maize leaves. Planta. 122(2). 143–154. 20 indexed citations

Bayer, D. E., et al.. (1973). Absorption of 2,4-Dichlorophenoxyacetic Acid and 3-(p-Chlorophenyl)-1, 1-dimethylurea (Monuron) by Barley Roots. PLANT PHYSIOLOGY. 52(6). 638–645. 31 indexed citations

Leonard, O. A., et al.. (1971). CONTROL OF TREE ROOTS IN SEWERS AND DRAINS. California Agriculture. 25(11). 13–15. 8 indexed citations

Leonard, O. A., et al.. (1971). Translocation and Metabolic Conversion of ¹⁴C-Labeled Assimilates in Detached and Attached Leaves of Phaseolus vulgaris L. in Different Phases of Leaf Expansion. PLANT PHYSIOLOGY. 47(2). 212–216. 18 indexed citations

Leonard, O. A. & R. K. Glenn. (1968). Translocation of Assimilates and Phosphate in Detached Bean Leaves. PLANT PHYSIOLOGY. 43(9). 1380–1388. 13 indexed citations

Leonard, O. A., et al.. (1968). Vein Loading and Transport in Detached Leaves. PLANT PHYSIOLOGY. 43(3). 460–463. 13 indexed citations

Leonard, O. A., et al.. (1968). Translocation of Labeled Assimilates into and Out of Bean Leaves as Affected by 2,4-D and Benzyl Adenine. Botanical Gazette. 129(4). 266–279. 6 indexed citations

10.

Weaver, Robert J. & O. A. Leonard. (1967). Effect of dormant-season applications of 2,4-D on pruned and nonpruned Tokay grapes. Hilgardia. 37(18). 661–675. 1 indexed citations

11.

Leonard, O. A., D. E. Bayer, & R. K. Glenn. (1966). Translocation of Herbicides and Assimilates in Red Maple and White Ash. Botanical Gazette. 127(4). 193–201. 16 indexed citations

12.

Leonard, O. A., Clinton E. Carlson, & D. E. Bayer. (1965). Studies on the Cut-Surface Method: II. Control of Blue Oak and Madrone. Weeds. 13(4). 352–352. 3 indexed citations

13.

Leonard, O. A., et al.. (1965). THE AMINO ACIDS OF SOME MISTLETOES AND THEIR HOSTS. American Journal of Botany. 52(1). 41–47. 11 indexed citations

14.

Hull, Richard & O. A. Leonard. (1964). Physiological Aspects of Parasitism in Mistletoes (Arceuthobium and Phoradendron). II. The Photosynthetic Capacity of Mistletoe. PLANT PHYSIOLOGY. 39(6). 1008–1017. 49 indexed citations

15.

Hull, Richard & O. A. Leonard. (1964). Physiological Aspects of Parasitism in Mistletoes (Arceuthobium and Phoradendron). I. The Carbohydrate Nutrition of Mistletoe. PLANT PHYSIOLOGY. 39(6). 996–1007. 94 indexed citations

16.

Leonard, O. A., et al.. (1958). An Evaluation of the Herbicidal Efficiency of Combinations of ATA with Dalapon, Monuron, and Several Other Chemicals. Weeds. 6(2). 143–143. 3 indexed citations

17.

Leonard, O. A., et al.. (1957). Light, Vegetation and Chlorophyll. Journal of Range Management. 10(6). 284–284. 3 indexed citations

18.

Leonard, O. A.. (1957). Control of woody plants on Western ranges.. 73–86. 1 indexed citations

19.

Leonard, O. A.. (1956). Studies of Factors Affecting the Control of Chamise (Adenostoma fasciculatum) with Herbicides. Weeds. 4(3). 241–241. 10 indexed citations

20.

Crafts, A. S., H. B. Currier, & O. A. Leonard. (1951). Toxicity of Herbicidal Oils. 1 indexed citations

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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