Does phosphorus influence performance of a native hemiparasite and its impact on a native legume?

2021 ◽  
Author(s):  
Robert M. Cirocco ◽  
Evelina Facelli ◽  
Steven Delean ◽  
José M. Facelli
Keyword(s):  
Native Legume

scholarly journals Cassia Yellow Blotch Virus: a New Bromovirus from an Australian Native Legume, Cassia pleurocarpa

1984 ◽  
Vol 65 (2) ◽  
pp. 281-288 ◽  
Author(s):  
J. L. Dale ◽  
A. J. Gibbs ◽  
G. M. Behncken
Keyword(s):  
Native Legume

Native legume species as potential fodder crops in the mediterranean renosterveld shrubland, South Africa

2020 ◽  
Vol 173 ◽  
pp. 104015
Author(s):  
Samson B.M. Chimphango ◽  
Luke H. Gallant ◽  
Zoe C. Poulsen ◽  
M. Igshaan Samuels ◽  
Dawood Hattas ◽  
...  
Keyword(s):  
South Africa ◽  
Legume Species ◽  
Fodder Crops ◽  
Native Legume ◽  
The Mediterranean

Distribution, frequency of occurrence and symbiotic properties of the Australian native legume Trigonella suavissima Lindl. and its associated root-nodule bacteria

2010 ◽  
Vol 32 (4) ◽  
pp. 395 ◽  
Author(s):  
J. Brockwell ◽  
Catherine M. Evans ◽  
Alison M. Bowman ◽  
Alison McInnes
Keyword(s):  
Root Nodule ◽  
Clay Soils ◽  
Frequency Of Occurrence ◽  
Nitrogen Fixing ◽  
Nodule Bacteria ◽  
River Systems ◽  
Root Nodule Bacteria ◽  
North East ◽  
Inland River ◽  
Native Legume

Trigonella suavissima Lindl. is an Australian native legume belonging to the tribe Trifolieae. It is an ephemeral species that is widely distributed in the arid interior of the continent where it occurs, following periodic inundation, on clay soils of the watercourse country of the Channel Country (far-western Queensland, north-east South Australia and north-western New South Wales). T. suavissima is the only member of its tribe that is endemic to Australia. Likewise, its root-nodule bacteria (Sinorhizobium sp.) may be the only member of its taxonomic group (S. meliloti, S. medicae) that is an Australian native. The distribution and frequency of occurrence of T. suavissima and the size of soil populations (density) of Sinorhizobium were monitored at 64 locations along inland river systems of the Channel Country. Measurements were made of (i) the nitrogen-fixing effectiveness of the symbioses between T. suavissima and strains of its homologous Sinorhizobium and (ii) the nitrogen-fixing effectiveness of the symbioses between legumes symbiotically related to T. suavissima and diverse strains of Sinorhizobium. It was concluded that the distribution and frequency of occurrence of T. suavissima is soil related. The species is most widespread on fine-textured clay soils with deep, self-mulching surfaces and high moisture-holding capacity. By contrast, the occurrence of T. suavissima is sporadic in the upper reaches of the inland river systems where the soils are poorly structured clays with lower moisture-holding capacity. Sinorhizobium is most abundant where the plant is most common. The nitrogen-fixing symbioses between T. suavissima and strains of Sinorhizobium isolated from soils across the region were consistently effective and often highly effective. Some of these strains fixed a little nitrogen with lucerne (Medicago sativa L.). T. suavissima also had some symbiotic (nitrogen-fixing) affinity with an exotic Trigonella (T. arabica Del.). The economic value of T. suavissima (and its symbiosis with Sinorhizobium) to the beef industry in the Channel Country is discussed.

scholarly journals Germination of Crotalaria and Lupinus (Fabaceae) seeds submitted to different pre-germination treatments and their effect on enzymatic activity during early germination

2020 ◽  
Vol 80 (1) ◽  
pp. 23-29
Author(s):  
B. Garduza-Acosta ◽  
L. C. Lagunes-Espinoza ◽  
C. C. Bautista-Muñoz ◽  
G. García-de-los-Santos ◽  
J. M. Zaldívar-Cruz ◽  
...  
Keyword(s):  
Enzymatic Activity ◽  
Total Protein ◽  
Germination Percentage ◽  
Hot Water ◽  
Galactosidase Activity ◽  
Physical Dormancy ◽  
Legume Seeds ◽  
Specific Enzymatic Activity ◽  
Early Germination ◽  
Native Legume

Abstract Most of the wild and native legume seeds has a hard and impermeable testa, which causes physical dormancy and prevents them from germinating even when environmental conditions are favorable. The study evaluated the effect of scarification treatments on germination and enzymatic activity of Crotalaria longirostrata (Cl) and Lupinus exaltatus (Le) seeds. After scarification treatments, germination percentage (GP) and rate (GR) were assessed during 30 days after seeding (DAS); and water absorption (WA) and specific enzymatic activity (SEA) during early germination (0, 6, 18, 36, 72, 120 h) in a growing chamber at 25 °C and photoperiod of 12 h. Scarification with 98% H2SO4 15 min increased GP and GR in both species. At 30 DAS, GP and GR of Le seeds were 34% and 0.97 seeds day-1, respectively. In Cl seeds, GP was 64% and GR 0.90 seeds day-1. Scarification with H2O at 80 °C 1 min also promoted germination in Cl (52%). At 120 h after seeding, Le and Cl seeds showed already a high GP with acid scarification (31% and 48%, respectively). In seeds of both species, scarification treatments affected WA and SEA during early germination. During this period, scarification treatments that increased GP also showed a higher α-D-galactosidase activity. The maximum enzyme activity was observed 72 h after hot water scarification in Cl (82.6 U/mg total protein), followed by acid scarification (54.5 U/mg total protein). In Le, the activity peak was 36 h after acid scarification (9.5 U/mg total protein). No relationship was observed between β-glucosidase activity and GP in both species. In conclusion, during early germination of both species, the increase in GP is accompanied by a rise in α-D-galactosidase activity between 36 and 72 h after seeding; and in Cl seeds, an alternative scarification treatment to increase GP may be the use of hot water.

scholarly journals First record of the seed beetle Merobruchus paquetae (Chrysomelidae, Bruchinae) in the exotic tree Leucaena leucocephala

Caldasia ◽  
2020 ◽  
Vol 42 (2) ◽  
pp. 336-338
Author(s):  
Angela R. Amarillo-Suárez ◽  
Mariana Camacho-Erazo
Keyword(s):  
Leucaena Leucocephala ◽  
First Record ◽  
Host Association ◽  
Seed Beetle ◽  
Legume Tree ◽  
Exotic Tree ◽  
Native Legume ◽  
First Time

We record for the first time the host association of the seed beetle Merobruchus paquetae with the invasive legume tree Leucaena leucocephala. This species of beetle was associated in Colombia to the native legume tree Pseudosamanea guachapele.

Prioritisation of native legume species for further evaluation as potential forage crops in water-limited agricultural systems in South Africa

2017 ◽  
Vol 189 (10) ◽  
Author(s):  
Francuois L. Müller ◽  
Lincoln M. Raitt ◽  
Samson B. M. Chimphango ◽  
M. Igshaan Samuels ◽  
Clement F. Cupido ◽  
...  
Keyword(s):  
South Africa ◽  
Legume Species ◽  
Agricultural Systems ◽  
Forage Crops ◽  
Native Legume

Exploring the wider potential of forage legumes collected from the highlands of Eritrea

2013 ◽  
Vol 11 (2) ◽  
pp. 158-169 ◽  
Author(s):  
Richard Snowball ◽  
Amanuel Mahdere ◽  
Eskender Tesfay ◽  
Mehreteab Aberra ◽  
Regina M. Carr ◽  
...  
Keyword(s):  
Genetic Erosion ◽  
Grazing Management ◽  
Research Station ◽  
Forage Legumes ◽  
Match Analysis ◽  
Preliminary Examination ◽  
Perennial Shrub ◽  
Native Legume ◽  
Pasture Plant ◽  
Seed Collections

This is the first report of a pasture plant collecting mission to the highlands of Eritrea and a preliminary examination of the potential of species for both Eritrea and southern Australia. In 2004, seeds from 53 legume species were collected from 58 locations in the southern highlands between Keren, Adi Quala and Senafe. Strains of Rhizobium from 18 species were also collected. Seed collections of 11 species with Rhizobium were established in germplasm nurseries at the Medina Research Station, Western Australia between 2005 and 2010. Observations on their growth, flowering and seed production were recorded. Based on a climate match analysis and observations from germplasm nurseries, it was suggested that species with most promise for parts of southern Australia include the annual legume Biserrula pelecinus ssp. leiocarpa and the perennial shrub Colutea abyssinica. The greatest potential, however, is reserved for the highlands of Eritrea where germplasm is well adapted. Species found low in the landscape including from the genera Lotus, Trifolium and Medicago appeared well utilized. Different species found higher in the landscape including from the genera Indigofera, Tephrosia, Crotalaria, Trifolium schimperi, B. pelecinus ssp. leiocarpa and C. abyssinica were much less common, appeared under-utilized and may be under threat from genetic erosion. Animal production on the non-arable dry hillsides of the highlands would benefit from better utilization of these species through replanting some areas, careful grazing management and demonstration of the benefits of increasing the native legume component of these wild pastures.

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