Topic
Scorpiurus
About: Scorpiurus is a research topic. Over the lifetime, 13 publications have been published within this topic receiving 85 citations.
Papers
TL;DR: Overall pod yields were strongly related to sand and clay content of the soil, rainfall and minimum temperature and to a lesser extent, to altitude and soil potash and the most significant finding was the widespread distribution of Scorpiurus sulcata.
Abstract: Pods and seed of all annual legume species and a soil sample were collected within a 1 m2 sample area at each of 161 sites in Morocco, and the surrounding area of approximately 0.5 ha intensively searched for all species. This paper reports findings for all genera except Medicago and Trifolium which are the subject of separate papers. Annual legumes were found at 138 sites and 15 genera and 31 species were identified. Scorpiurus sulcata, the most prolific species, was found at 117 sites, followed by Astragalus hamosus (52 sites) and Hippocrepis unisiliquosa (30 sites). The distribution of the genera was related to pH, sand and clay content, altitude and rainfall, but very little to soil nutrient status. The highest pod yield was 890 kg/ha for Scorpiurus sulcata whilst Hedysarum coronarium had the highest average pod yield of 392 kg/ha but occurred at only 3 sites. Scorpiurus had the highest average pod yield of any genus that occurred at more than just a few sites. Overall pod yields were strongly related to sand and clay content of the soil, rainfall and minimum temperature and to a lesser extent, to altitude and soil potash. The most significant finding was the widespread distribution of Scorpiurus sulcata which did not appear to have any specific requirements for soil type, soil nutrient status, altitude or climate. The need to assess Scorpiurus sulcata as a potential pasture plant for Morocco and other areas of similar climate is clearly indicated.
24 citations
TL;DR: RFLP analysis of PCR-amplified 16S–23S rDNA IGS showed that the levels of similarity between rhizobial isolates from Ornithopus, Hedysarum and Scorpiurus, and the type strains of Rhizobium leguminosarum, MesorhZobium loti, M. ciceri, SinorhizOBium meliloti and Bradyrhizobioides were not more than 30%.
Abstract: Thirty-five rhizobial strains were isolated from nodules of Lotus edulis, L. ornithopodioides, L. cytisoides, Hedysarum coronarium, Ornithopus compressus and Scorpiurus muricatus growing in Sardinia and Asinara Island. Basic characteristics applied to identification of rhizobia such as symbiotic properties, antibiotic- and salt-resistance, temperate-sensitivities, utilization of different sources of carbon and nitrogen were studied. The results from the 74 metabolic tests were used for cluster analysis of the new rhizobial isolates and 28 reference strains, belonging to previously classified and unclassified fast-, intermediate- and slow-growing rhizobia. All strains examined were divided into two large groups at a linkage distance of 0.58. None of the reference strains clustered with the new rhizobial isolates, which formed five subgroups almost respective of their plant origin. RFLP analysis of PCR-amplified 16S-23S rDNA IGS showed that the levels of similarity between rhizobial isolates from Ornithopus, Hedysarum and Scorpiurus, and the type strains of Rhizobium leguminosarum, Mesorhizobium loti, M. ciceri, M. mediterraneum, Sinorhizobium meliloti and Bradyrhizobium japonicum were not more than 30%. Thus, it can be assumed that these groups of new rhizobial isolates are not closely related to the validly described rhizobial species.
21 citations
TL;DR: It is suggested that plant breeding programmes would allow the selection of ecotypes and varieties for field crop cultivation, to identify those issues that currently limit its introduction into cultivation as a forage crop in Mediterranean areas.
Abstract: Prickly scorpion’s tail, Scorpiurus muricatus L. subsp. subvillosus (L.) Thell., is an annual legume species, widespread in pastures of the basin of the Mediterranean Sea. It has been neglected by researchers and farmers for a long time, although the species has promise as a forage crop for its high nutritive value, self-reseeding capability and its preference by ruminants. Harvesting and threshing of seed, however, are difficult and it has seed-coat dormancy, which delays and reduces germination, hindering its use as a forage crop. It is suggested that plant breeding programmes would allow the selection of ecotypes and varieties for field crop cultivation. In this study, the main botanical, biological, ecological and agronomic traits are reviewed to identify those issues that currently limit its introduction into cultivation as a forage crop in Mediterranean areas.
13 citations
10 citations
1 Jan 2008
TL;DR: Article available on line / Article disponible en ligne à l’adresse : http://om.ciheam.org/article.php?IDPDF=800663
Abstract: Article available on line / Article disponible en ligne à l’adresse : -------------------------------------------------------------------------------------------------------------------------------------------------------------------------http://om.ciheam.org/article.php?IDPDF=800663 --------------------------------------------------------------------------------------------------------------------------------------------------------------------------
7 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2018 | 1 |
| 2016 | 1 |
| 2011 | 1 |
| 2010 | 1 |
| 2008 | 2 |
| 2005 | 1 |