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Abstract  

Two types of series of h-indices for journals published in the field of Horticulture during the period 1998–2007 are calculated. Type I h-indices are based on yearly data, while type II h-indices use cumulative data. These h-indices are also considered in a form normalised with respect to the number of published articles. It is observed that type I h-indices, normalised or not, decrease linearly over a period of ten years. The type II series, however, is not linear in nature: it exhibits partly a concave shape. This proves that the journals (in Horticulture) do not exhibit a linear increase in h-index as argued by Hirsch in the case of life-time achievements of scientists. In the second part of the paper, an attempt is made to study the relative visibility of a journal and its change over time, based on h-indices of journals. It is shown that: –  the h-index over the complete period 1998–2007 of the journal Theoretical & Applied Genetics (h = 62) is much higher than that of all other journals in the field –  the relation between the number of publications and the type II h-index for the whole period is not an exact power law (as it would have to be if the Egghe-Rousseau model were applicable) –  in order to study the dynamic aspects of journal visibility, a field-relative normalised h-ratio is defined to monitor systematic changes in the field of Horticulture. Except for two journals, the Pearson correlation coefficient for yearly values of this field-relative normalised h-ratio indicates that there is no systematic change of the performance of the journals with respect to the field as a whole.

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outdoors Maintaining stable productivity and intensive horticulture Have mature technology and highly effective and energy-saving production equipment K3

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,655 Horticulture 1,388 Engineering, industrial 2,578 Parasitology 4,595 Materials science

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-indices: The JCR category Horticulture as a case study . Scientometrics 80 1 59 – 74 10.1007/s11192-007-2026-z . Meng , L. S. ( 1982 ). Chinese Science Citation Analysis . Master's thesis, Library of

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). The educational profile of both institutions covers primarily the fields of economics and social studies, applied life sciences, agri-, horti-culture and engineering, and these occur in different proportions and historical settings. Still, CORV is the

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; Forest management; Forestry and related sciences nec; Forestry science; General agricultural sciences; Horticulture science; Plant breeding/genetics; Plant pathology; Plant protection/pest management; Plant sciences nec; Poultry science; Soil chemistry

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Scientometrics
Authors:
Antonio J. Gómez-Núñez
,
Benjamín Vargas-Quesada
,
Félix de Moya-Anegón
, and
Wolfgang Glänzel

.873 Forestry 45 0.154 Horticulture 1 0.003 Insect

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Scientometrics
Authors:
Reindert K. Buter
,
Ed. C. M. Noyons
, and
Anthony F. J. Van Raan

, Multidisciplinary Parasitology G Y 72 3 28 2005 Horticulture

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.670 Crop Science 2.67 0.610 Horticultural Science 2.47 0

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