A preliminary account of growth characteristics and seed germination of<i>Cassia mimosoides</i>L. in Dohne Sourveld

Steinke, T.D.; Nel, L

doi:10.1080/02566702.1990.9648226

Cited by 2 publications

(1 citation statement)

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“…The management of woody species at the seedling stage is, therefore, crucial in determining the structure and composition of future communities (Hurt, 1995; Jordan & Hartman, 1995). It is well‐documented that water and nitrogen interact significantly in controlling growth and development in that water controls soil nitrogen absorption and protein synthesis of green plants (Hale & Orcutt, 1987; Harper, 1990; Steinke & Nel, 1990; Bredenkamp, Granger & Van Rooyen, 1996; Mcpherson, 1997). Plants need adequate water and nutrients for metabolism, especially during active growth and high energy expenditure.…”

Section: Introductionmentioning

confidence: 99%

Effects of moisture, nitrogen, grass competition and simulated browsing on the survival and growth of Acacia karroo seedlings

Trollope

Scogings

2009

African Journal of Ecology

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The effects of irrigation, nitrogen fertilization, grass competition and clipping were investigated for one growing season at the research farm of the University of Fort Hare in the Eastern Cape Province of South Africa. The aim of the experiment was to assess the short‐term performance of Acacia karroo seedlings under different environmental conditions and the implications of such factors on the long‐term recruitment of plant species in savanna rangelands. There were no significant treatment effects on the survival of A. karroo seedlings. Using stem length and basal diameter as growth parameters, it was observed that irrigation enhanced both variables, while nitrogen fertilization did not have any significant effects. Clipping, grass competition and their interaction greatly suppressed the growth of the seedlings. Clipping increased the mean stem length when they were irrigated and fertilized. Control and fertilized plants had the highest stem length in the absence of grass competition, while grass competition combined with clipping resulted in the lowest stem length in both irrigated and nonirrigated plants. It was concluded that in the presence of grass competition, controlled browsing could be a viable solution to the problem of bush encroachment in savanna rangelands.

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Section: Introductionmentioning

confidence: 99%