Topic
Osteospermum fruticosum
About: Osteospermum fruticosum is a research topic. Over the lifetime, 9 publications have been published within this topic receiving 17 citations. The topic is also known as: Osteospermum fruticosum.
Papers
TL;DR: In this paper, a genetic strategy to introduce compactness in the perennial shrub Cape daisy (Osteospermum fruticosum Norl) was adopted, which reduced plant height, increased branching, shortened internodes, shortened peduncles, and smaller flowers.
Abstract: Improved compact shoot architecture of Osteospermum fruticosum
Ri lines obtained through Rhizobium rhizogenes
transformation reduces the need for chemical growth retardants.
Compactness is for many ornamental crops an important commercial trait that is usually obtained through the application of growth retardants. Here, we have adopted a genetic strategy to introduce compactness in the perennial shrub Cape daisy (Osteospermum fruticosum Norl.). To this end, O. fruticosum was transformed using six different wild type Rhizobium rhizogenes strains. The most effective R. rhizogenes strains Arqua1 and ATCC15834 were used to create hairy root cultures from six Cape daisy genotypes. These root cultures were regenerated to produce transgenic Ri lines, which were analyzed for compactness. Ri lines displayed the characteristic Ri phenotype, i.e., reduced plant height, increased branching, shortened internodes, shortened peduncles, and smaller flowers. Evaluation of the Ri lines under commercial production conditions showed that similar compactness was obtained as the original Cape daisy genotypes treated with growth retardant. The results suggest that the use of chemical growth retardants may be omitted or reduced in commercial production systems of Cape daisy through implementation of Ri lines in future breeding programs.
7 citations
16 Mar 2020
TL;DR: A monopartite begomovirus associated with betasatellite was identified from Osteospermum fruticosum showing severe yellowing vein net symptoms in Rajasthan, India through molecular characterization.
Abstract: A monopartite begomovirus associated with betasatellite was identified from Osteospermum fruticosum (Cape Daisy) showing severe yellowing vein net symptoms in Rajasthan, India through molecular characterization. The DNA-A shared the highest nucleotide (96.61%) identity to Chilli leaf curl Ahmedabad virus (KM880103), while the betasatellite depicted the highest sequence similarity (99.28%) to Chilli leaf curl betasatellite (JF706231, 99.28%). Based on the sequence identity with other begomoviruses known to date, they were recognized as Chilli leaf curl virus (CDI, MH355641) and Chilli leaf curl betasatellite (CDB1, MH355642), respectively. Phylogenetic analysis showed that DNA-A (CD1) clustered with ChiLCV Goa (KP235539), whereas the betasatellite (CDB1) clustered with ChiLCB Jodhapur (JF70623). Recombination events were observed among the clades of ChiLCV, showing intragenic recombination in Rep (C1) and coat protein (V1/AV1) regions. To our knowledge, this is the first report of ChiLC begomovirus strain affecting O. fruticosum.
6 citations
5 citations
TL;DR: Eight species of groundcovers commonly used in the southwestern United States were subjected to renovation by mowing during a 2-year study, finding six species responded favorably to mowing and two species did not respond favorably.
Abstract: Eight species of groundcovers commonly used in the southwestern United States were subjected to renovation by mowing during a 2-year study: red apple, coyote bush, pink iceplant, trailing lantana, prostrate myoporum, trailing African daisy, dwarf rosemary and garden verbena. Plant response was evaluated monthly in terms of total height, thickness of thatch, density, and overall appearance. Six species responded favorably to mowing at a height of 10 cm (4 in) in that thatch and height were significantly reduced for up to several months with only a brief loss in aesthetic quality. Coyote bush, trailing lantana, prostrate myoporum and garden verbena responded well to March mowings, while pink iceplant and trailing African daisy responded well to June mowings. In the two species that did not respond favorably (red apple and dwarf rosemary), the 10 cm (4 in) mowing treatment significantly reduced thatch and height but their aesthetic quality and density were reduced to unacceptable levels for several ...
4 citations
Patent•
15 Sep 1998
TL;DR: A new and distinct variety of the Compositae family, Osteospermum fruticosum (L.) Norl, common name Cape Daisy, denominated ''Wildside'' was introduced in this article.
Abstract: The present invention relates to a new and distinct variety of the Compositae family, Osteospermum fruticosum (L.) Norl., common name Cape Daisy, denominated `Wildside`.The new variety is distinguished from its parents and all other members of the genera known to the inventor by: the ability of its flower heads to remain open in low light conditions, its distinctive coloring--the ray florets being rosy-purple and the disk florets violet being blue; its strong peduncles; and its dwarf, vigorous, broad-spreading growth habit.
3 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2020 | 1 |
| 2002 | 1 |
| 2000 | 1 |
| 1998 | 1 |
| 1996 | 2 |