Revision of the &lt;i&gt;Tarchonanthus&lt;/i&gt; camphoratus complex (Asteraceae-Tarchonantheae) in southern Africa

Herman, P. P. J.

doi:10.4102/abc.v32i1.458

Cited by 17 publications

(8 citation statements)

References 7 publications

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“…The experimental data originated from Vaalharts Research Station in the Northern Cape of South Africa, which is situated at 27°57'19" S and 24°50'41'' E with mixed Tarchonanthus veld, Veld type No. 16b (Acocks, 1988;Herman, 2002). It has an estimated average carrying capacity of 10 ha/LSU.…”

Section: Methodsmentioning

confidence: 99%

Genetic effects from an Afrikaner, Bonsmara, and Nguni three-breed diallel and top-crosses of Angus and Simmental sires

Pyoos¹,

Scholtz²,

MacNeil³

et al. 2020

SA J. An. Sci.

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Individual and maternal breed additive effects and heterosis exist for most economically important traits in cattle. Crossbreeding may therefore be valuable for emerging and commercial beef farmers in improving the productivity of their herds. Calves were produced by mating Afrikaner, Bonsmara and Nguni cows to Afrikaner, Bonsmara, Nguni, Angus and Simmental bulls. The cows used were from Vaalharts Research Station or were purchased from other herds. Data were collected over three years. Individual and maternal additive effects and individual heterosis were estimated simultaneously as continuous linear variates. The estimated genetic effects were then used to predict production levels that may be achieved through implementation of top-cross, two-breed rotation, and terminal sire crossbreeding systems. The individual estimates of the genetic effects were relatively small and in most cases were not different from zero, with the exception of the maternal additive effects of Nguni on preweaning traits and their individual additive effect on cow weight, which were less than those of Bonsmara. However, the alternative crossbreeding systems differed across traits. The straight-bred breeding system was least efficient, followed by the crisscross system (+2%) and the terminal sire system that utilized Simmental (+4%), with the terminal sire system utilizing Angus being on average most efficient (+8%). The inter-generational genetic differences in cow weight that resulted from the use of different breeds of sire increased its standard deviation by 5 to 6% in rotational crossing. Despite the relatively small magnitude of the genetic effects, advantages of crossbreeding systems became evident.Keywords: breed additive, crossbreeding, heterosis, post-weaning, pre-weaning

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Section: Methodsmentioning

confidence: 99%

Genetic effects from an Afrikaner, Bonsmara, and Nguni three-breed diallel and top-crosses of Angus and Simmental sires

Pyoos¹,

Scholtz²,

MacNeil³

et al. 2020

SA J. An. Sci.

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“…The bushes or small trees of this host plant are sometimes massively attacked by large numbers of A. squamosa during the blooming season, which occurs between March and April (Herman 2002). Single adults have been observed in activity between January and May, and are occasionally attracted to whitish ßowers and inßorescences of other plants, especially those of the climbing Asparagus L. (Asparagaceae).…”

Section: Taxonomymentioning

confidence: 99%

Revision of the Southern African Pollen Beetle Genus Anthystrix (Coleoptera: Nitidulidae: Meligethinae)

Audisio

Cline

Lamanna

et al. 2009

Annals of the Entomological Society of America

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The pollen beetle genus AnthystrixKirejtshuk, 1981 previously included six South African species characterized by unusual dimorphic development of male antennal characters. The genus is revised and three new species are described from South Africa, including Anthystrix endroedyi new species, Anthystrix flabellicornis new species, and Anthystrix megalocera new species. Anthystrix luculentaKirejtshuk & Easton 1988, Anthystrix rotundiclavaKirejtshuk & Easton 1988, and Anthystrix martini (Grouvelle, 1899) need to be transferred to two new undescribed genera. These new genera will globally include ≈20 species, most of which remain undescribed or previously attributed to the unrelated genus Meligethinus Grouvelle, 1906. One new synonymy is proposed: Meligethinus uhligiKirejtshuk & Easton, 1988, = Pria martiniGrouvelle, 1899, syn. nov. Larval host plants of Anthystrix species are reported as dioecious Asteraceae trees within the tribe Tarchonantheae (Tarchonanthus). An identification key to all Anthystrix species is provided.

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“…The genus Tarchonanthus belongs to the family Asteraceae, subfamily Cichorioideae and tribe Tarchonantheae (Keeley and Jansen, 1991). Furthermore, they are dioecious, with male and female flowers produced on different plants (Herman, 2002). A specific name is usually chosen to indicate some striking characteristics of the plant.…”

Section: Introductionmentioning

confidence: 99%

Differentiation of Tarchonanthus camphoratus L. and Tarchonanthus parvicapitulatus P.P.J. Herman (Asteraceae) using electron microscopy, and comparison of their biological activities

Aro

Famuyide

Elisha

et al. 2021

Journal of Ethnopharmacology

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Revision of the <i>Tarchonanthus</i> camphoratus complex (Asteraceae-Tarchonantheae) in southern Africa

Cited by 17 publications

References 7 publications

Genetic effects from an Afrikaner, Bonsmara, and Nguni three-breed diallel and top-crosses of Angus and Simmental sires

Genetic effects from an Afrikaner, Bonsmara, and Nguni three-breed diallel and top-crosses of Angus and Simmental sires

Revision of the Southern African Pollen Beetle Genus Anthystrix (Coleoptera: Nitidulidae: Meligethinae)

Differentiation of Tarchonanthus camphoratus L. and Tarchonanthus parvicapitulatus P.P.J. Herman (Asteraceae) using electron microscopy, and comparison of their biological activities

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