2026 Paul H. Williams: Plant Science and Agronomy Researcher – H-Index, Publications & Awards

D-Index & Metrics

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Plant Science and Agronomy	55	1586	1453	426	371	147	15237

Discipline name

D-Index

World Ranking

Current World Ranking

National Ranking

Current National Ranking

Publications

Citations

Plant Science and Agronomy

1586

1453

426

371

147

15237

Plant Science and Agronomy

D-Index

Citations

15237

World Ranking

1586

National Ranking

426

Research.com Recognitions

1995 - Fellow of the American Association for the Advancement of Science (AAAS)

Best Publications

Host Specific Social Parasites ( Psithyrus ) Indicate Chemical Recognition System in Bumblebees

Stephen J. Martin;Jonathan M. Carruthers;Paul H. Williams;Falko P. Drijfhout

722
Citations
Bumblebee vulnerability and conservation world-wide

Paul H. Williams;Juliet L. Osborne

715
Citations
Black rot: a continuing threat to world crucifers.

Paul H. Williams

573
Citations
Brassica taxonomy based on nuclear restriction fragment length polymorphisms (RFLPs) : 2. Preliminary analysis of subspecies within B. rapa (syn. campestris) and B. oleracea.

K. M. Song;T. C. Osborn;P. H. Williams

572
Citations
A comprehensive phylogeny of the bumble bees (Bombus)

S. A. Cameron;H. M. Hines;P. H. Williams

448
Citations
Planning for Climate Change: Identifying Minimum-Dispersal Corridors for the Cape Proteaceae

Paul Williams;Lee Hannah;Sandy Andelman;Guy Midgley

424
Citations
Rapid-cycling populations of Brassica

Paul H. Williams;Curtis B. Hill

402
Citations
A simplified subgeneric classification of the bumblebees (genus Bombus)

Paul H. Williams;Sydney A. Cameron;Heather M. Hines;Bjorn Cederberg

301
Citations
The distribution of bumblebee colour patterns worldwide: possible significance for thermoregulation, crypsis, and warning mimicry

Paul Williams

247
Citations
RFLP mapping of Brassica napus using doubled haploid lines.

M. E. Ferreira;P. H. Williams;T. C. Osborn

219
Citations
Unveiling cryptic species of the bumblebee subgenus Bombus s. str. worldwide with COI barcodes (Hymenoptera: Apidae)

Paul H Williams;Mark J F Brown;James C Carolan;Jiandong An

213
Citations
Mapping loci controlling vernalization requirement and flowering time in Brassica napus.

M. E. Ferreira;J. Satagopan;B. S. Yandell;P. H. Williams

206
Citations
Glucosinolates in crucifer vegetables: broccoli, brussels sprouts, cauliflower, collards, kale, mustard greens, and kohlrabi

D.G. Carlson;M.E. Daxenbichler;C.H. VanEtten;W.F. Kwolek

193
Citations
Bumblebee vulnerability: common correlates of winners and losers across three continents.

Paul Williams;Sheila Colla;Zhenghua Xie

190
Citations
An evaluation of Fusarium oxysporum from crucifers based on pathogenicity, isozyme polymorphism, vegetative compatibility, and geographic origin

Unknown

168
Citations
Mapping loci controlling Brassica napus resistance to Leptosphaeria maculans under different screening conditions.

M. E. Ferreira;S. R. Rimmer;P. H. Williams;T. C. Osborn

165
Citations
Colour Patterns Do Not Diagnose Species: Quantitative Evaluation of a DNA Barcoded Cryptic Bumblebee Complex

James C. Carolan;Tomás E. Murray;Tomás E. Murray;Úna Fitzpatrick;John Crossley

160
Citations
Global decline of bumblebees is phylogenetically structured and inversely related to species range size and pathogen incidence.

Marina Paula Arbetman;Gabriela Laura Gleiser;Carolina Laura Morales;Paul Williams

143
Citations
Centres of seed-plant diversity : the family way

Paul H. Williams;Chris J. Humphries;Kevin J. Gaston

138
Citations
The bumblebees of Sichuan (Hymenoptera: Apidae, Bombini)

Paul Williams;Ya Tang;Jian Yao;Sydney Cameron

126
Citations
Biology of Leptosphaeria maculans

Paul H. Williams

99
Citations
Mapping of a locus controlling resistance to Albugo candida in Brassica napus using molecular markers.

M. E. Ferreira;P. H. Williams;T. C. Osborn

76
Citations
The exploration of genetic resources of Portuguese cabbage and kale for resistance to several Brassica diseases

António A. Monteiro;Paul H. Williams

60
Citations
Fast plants for finer science—an introduction to the biology of rapid-cycling Brassica campestris (rapa) L.

Stephen P. Tomkins;Paul H. Williams

31
Citations
Dwarf mutants of Brassica : Responses to applied gibberellins and gibberellin content

Karen P. Zanewich;Stewart B. Rood;Carol E. Southworth;Paul H. Williams

29
Citations
Multiple-pathogen inoculation of cucumber (Cucumis sativus) seedlings

A. J. Wyszogrodzka;P. H. Williams;C. E. Peterson

16
Citations
Search for resistance to gummy stem blight (Didymella bryoniae) in cucumber (Cucumis sativus L.)

Anna J. Wyszogrodzka;Paul H. Williams;Clinton E. Peterson

15
Citations
A toothpick method for mating Leptosphaeria maculans, the causal agent of blackleg of crucifers

A. Mengistu;C. B. Hill;P. H. Williams

10
Citations
Selection for resistance to Plasmodiophora brassicae Wor . in oriental subspecies of Brassica rapa L.

Christopher B. Miller;Paul H. Williams

7
Citations
Chemistry and Breeding of Cruciferous Vegetables

Paul H. Williams

6
Citations
EVALUATION OF RAPID CYCLING BRASSICA AS A CANDIDATE OILSEED CROP FOR CONTROLLED ECOLOGICAL LIFE SUPPORT SYSTEMS

Jay Frick;Manette A. Schonfeld;Paul H. Williams;Cary A. Mitchell

1
Citations