Rhiannon Schilling

Rhiannon Schilling
South Australian Research and Development Institute | SARDI · Crop Sciences

BSc (Ag Sc) (Hons), PhD

About

20
Publications
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483
Citations

Publications

Publications (20)
Article
Bread wheat ( Triticum aestivum L.) is one of the most important food crops, however it is only moderately tolerant to salinity stress. To improve wheat yield under saline conditions, breeding for improved salinity tolerance of wheat is needed. We have identified nine quantitative trail loci (QTL) for different salt tolerance sub-traits in a recomb...
Article
Globally, surface and subsurface soil acidity pose a serious threat to crop production and require effective management to prevent yield losses. The application of lime (calcium carbonate, CaCO3) is a well-recognised remediation technique for surface soil acidity. However, for subsurface acidity, improved application and detection methods are requi...
Article
Full-text available
Salinity tolerance in bread wheat is frequently reported to be associated with low leaf sodium (Na+) concentrations. However, the Portuguese landrace, Mocho de Espiga Branca, accumulates significantly higher leaf Na+ but has comparable salinity tolerance to commercial bread wheat cultivars. To determine the genetic loci associated with the salinity...
Article
Full-text available
Proton‐pumping pyrophosphatases (H+‐PPases) have been shown to enhance biomass and yield. However, to date, there has been little work towards identify genes encoding H+‐PPases in bread wheat (Triticum aestivum) (TaVPs) and limited knowledge on how the expression of these genes varies across different growth stages and tissue types. In this study,...
Preprint
Salt stress causes changes in root apoplastic barriers, such as the endodermis and the exodermis, and these changes are associated with variation in abiotic stress tolerance. We explored variation in root apoplastic barrier traits, O consumption and root and shoot Na and K content in a diverse collection of commercial and wild barley accessions sub...
Article
Bread wheat (Triticum aestivum L.) is one of the most important food crops, however it is only moderately tolerant to salinity stress. To improve wheat yield under saline conditions, breeding for improved salinity tolerance of wheat is needed. We have identified nine quantitative trail loci (QTL) for different salt tolerance sub-traits in a recombi...
Article
Full-text available
Improving salinity tolerance in the most widely cultivated cereal, bread wheat (Triticum aestivum L.), is essential to increase grain yields on saline agricultural lands. A Portuguese landrace, Mocho de Espiga Branca accumulates up to six‐fold greater leaf and sheath sodium (Na⁺) than two Australian cultivars, Gladius and Scout, under salt stress i...
Preprint
Improving salinity tolerance in the most widely cultivated cereal, bread wheat ( Triticum aestivum L.), is essential to increase grain yields on saline agricultural lands. A Portuguese landrace, Mocho de Espiga Branca accumulates up to 6 folds greater leaf and sheath sodium (Na ⁺ ) than two Australian cultivars, Gladius and Scout, under salt stress...
Article
Full-text available
Highly variable phenotypic responses in mycorrhizal plants challenge our functional understanding of plant‐fungal mutualisms. Using non‐invasive high‐throughput phenotyping, we observed that arbuscular mycorrhizal (AM) fungi relieved phosphorus (P) limitation and enhanced growth of Brachypodium distachyon under P‐limited conditions, while photosynt...
Conference Paper
Full-text available
Dispersive sodic soils are common in the cropping areas of southeastern Australia and due to their poor water infiltration rate, transient waterlogging may occur, even following a small rainfall event. Transient waterlogging causes significant changes to soil chemistry that can severely reduce root growth and result in yield loss. To date there is...
Preprint
Highly variable phenotypic responses in mycorrhizal plants challenge our functional understanding of plant-fungal mutualisms. Using non-invasive high-throughput phenotyping, we observed that arbuscular mycorrhizal (AM) fungi relieved phosphorus (P) limitation and enhanced growth of Brachypodium distachyon under P-limited conditions, while photosynt...
Chapter
Salinity is a major constraint limiting crop yields around the world. While considerable research to understand and enhance the salinity tolerance of plants has occurred, few commercially available salt‐tolerant bread wheat (Triticum aestivum), durum wheat (Triticum durum), or barley (Hordeum vulgare) varieties have been developed for farmers. This...
Article
Full-text available
To optimize shoot growth and structure of cereals, we need to understand the genetic components controlling initiation and elongation. While measuring total shoot growth at high‐throughput using 2D imaging has progressed, recovering the 3D shoot structure of small grain cereals at a large scale is still challenging. Here, we present a method for me...
Article
Full-text available
Key message: Novel QTL for salinity tolerance traits have been detected using non-destructive and destructive phenotyping in bread wheat and were shown to be linked to improvements in yield in saline fields. Soil salinity is a major limitation to cereal production. Breeding new salt-tolerant cultivars has the potential to improve cereal crop yield...
Article
Full-text available
Soil salinity can severely reduce crop growth and yield. Many studies have investigated salinity tolerance mechanisms in cereals using phenotypes that are relatively easy to measure. The majority of these studies measured the accumulation of shoot Na+ and the effect this has on plant growth. However, plant growth is reduced immediately after exposu...
Article
Constitutive expression of the Arabidopsis vacuolar proton-pumping pyrophosphatase (H(+)-PPase) gene (AVP1) increases plant growth under various abiotic stress conditions and, importantly, under nonstressed conditions. Many interpretations have been proposed to explain these phenotypes, including greater vacuolar ion sequestration, increased auxin...
Article
Full-text available
Phosphorus (P) is one of the essential nutrients for plants and indispensable for plant growth and development. P deficiency severely limits crop yield and regular fertilizer applications are required to obtain high yields and prevent soil degradation. To access P from the soil, plants have evolved high and low affinity Pi transporters and the abil...
Article
Full-text available
Cereal varieties with improved salinity tolerance are needed to achieve profitable grain yields in saline soils. The expression of AVP1, an Arabidopsis gene encoding a vacuolar proton pumping pyrophosphatase (H(+) -PPase), has been shown to improve the salinity tolerance of transgenic plants in greenhouse conditions. However, the potential for this...

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