G. J. De Klerk publications per year

The chart shows the history of publications by G. J. De Klerk between 1975 and 2020, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. G. J. De Klerk published across 46 years, from 1975 to 2020, averaging 4.4 papers a year. Output peaked at 19 publications in 2007. 1 of the 202 publications appeared in the last two years.

No. of publications

5 10 15

1975 2020

202 publications in total across all disciplines

View publications per year as a table

G. J. De Klerk: publications per year, 1975 to 2020
Year	Publications
1975	1
1976	0
1977	0
1978	0
1979	2
1980	0
1981	2
1982	2
1983	1
1984	7
1985	6
1986	5
1987	2
1988	1
1989	0
1990	12
1991	0
1992	8
1993	1
1994	7
1995	6
1996	2
1997	11
1998	3
1999	2
2000	7
2001	6
2002	8
2003	10
2004	5
2005	3
2006	2
2007	19
2008	9
2009	6
2010	12
2011	7
2012	4
2013	6
2014	4
2015	2
2016	1
2017	6
2018	3
2019	0
2020	1
Total	202

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G. J. De Klerk publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where G. J. De Klerk sits on this spectrum.

No. of scientists

50 100 150 200 250

36–40 publications 467+

This scientist: 157 publications — 61st percentile

61% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 467 publications or more.

View publications distribution as a table

Number of Plant Science and Agronomy scientists by publication count, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
Publications	Scientists	This scientist
36–40	2
41–45	7
46–50	40
51–55	58
56–60	60
61–65	107
66–70	130
71–75	153
76–80	191
81–85	199
86–90	206
91–95	218
96–100	226
101–105	227
106–110	247
111–115	255
116–120	253
121–125	233
126–130	219
131–135	201
136–140	194
141–145	176
146–150	157
151–155	147
156–160	151	157
161–165	159
166–170	137
171–175	128
176–180	126
181–185	98
186–190	114
191–195	100
196–200	90
201–205	71
206–210	98
211–215	70
216–220	86
221–225	61
226–230	58
231–235	53
236–240	64
241–245	39
246–250	46
251–255	51
256–260	36
261–265	44
266–270	35
271–275	30
276–280	33
281–285	35
286–290	36
291–295	26
296–300	26
301–305	31
306–310	30
311–315	21
316–320	29
321–325	14
326–330	15
331–335	15
336–340	17
341–345	15
346–350	12
351–355	17
356–360	18
361–365	12
366–370	11
371–375	6
376–380	6
381–385	11
386–390	9
391–395	10
396–400	8
401–405	4
406–410	9
411–415	11
416–420	4
421–425	7
426–430	4
431–435	3
436–440	5
441–445	8
446–450	6
451–455	7
456–460	5
461–465	6
466	2
467+	99

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G. J. De Klerk D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where G. J. De Klerk sits on this spectrum.

No. of scientists

50 100 150 200 250

30 D-Index 109+

This scientist: 35 D-Index — 23rd percentile

23% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 109 D-Index or more.

View D-Index distribution as a table

Number of Plant Science and Agronomy scientists by D-index, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
D-Index	Scientists	This scientist
30	200
31	236
32	253
33	283
34	288
35	240	35
36	246
37	243
38	247
39	229
40	232
41	230
42	228
43	219
44	193
45	164
46	158
47	143
48	131
49	127
50	122
51	122
52	110
53	102
54	98
55	79
56	85
57	88
58	91
59	62
60	61
61	59
62	54
63	61
64	59
65	58
66	41
67	49
68	39
69	32
70	40
71	47
72	38
73	28
74	29
75	28
76	22
77	21
78	25
79	26
80	19
81	16
82	12
83	16
84	14
85	11
86	17
87	13
88	10
89	12
90	18
91	16
92	16
93	17
94	12
95	8
96	9
97	9
98	11
99	12
100	5
101	8
102	4
103	11
104	5
105	9
106	7
107	4
108	8
109+	99

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Best Publications

Plant Propagation by Tissue Culture

Unknown

2501
Citations
Review the formation of adventitious roots: New concepts, new possibilities

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613
Citations
Epigenetics in plant tissue culture

M.J.M. Smulders;G.J.M. de Klerk

304
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The components of plant tissue culture media II. Organic additions, osmotic and pH effects, and support systems

T. Thorpe;C. Stasolla;E.C. Yeung;G.J.M. de Klerk

228
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Rooting of microcuttings: Theory and practice

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211
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Plant Growth Regulators II: Cytokinins, their Analogues and Antagonists

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209
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Developmental Biology

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209
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The Components of Plant Tissue Culture Media I: Macro- and Micro-Nutrients

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186
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Plant Tissue Culture Procedure - Background

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171
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Effects of phenolic compounds on adventitious root formation and oxidative decarboxylation of applied indoleacetic acid in Malus ‘Jork 9’

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160
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Timing of the phases in adventitous root formation in apple microcuttings

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156
Citations
Micropropagation: Uses and Methods

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148
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Effectiveness of indoleacetic acid, indolebutyric acid and naphthaleneacetic acid during adventitious root formation in vitro in Malus ‘Jork 9’

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144
Citations
Plant Growth Regulators I: Introduction; Auxins, their Analogues and Inhibitors

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135
Citations
Plant propagation by tissue culture. Volume 1: the background.

Unknown

125
Citations
Regeneration of roots, shoots and embryos: physiological, biochemical and molecular aspects

Unknown

117
Citations
How to measure somaclonal variation

Unknown

109
Citations
Flooding of the apoplast is a key factor in the development of hyperhydricity

Niels van den Dries;Sergio Giannì;Anna Czerednik;Frans A. Krens

103
Citations
Effect of sucrose on adventitious root regeneration in apple

Unknown

102
Citations
Photoautotrophic micropropagation - environmental control for promoting photosynthesis.

T. Kozai;G. J. de Klerk;J. E. Preece

89
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