Leigh M. Schmidtke
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View article: Transformer-Guided Noise Detection and Correction in Remote Sensing Data for Enhanced Soil Organic Carbon Estimation
Transformer-Guided Noise Detection and Correction in Remote Sensing Data for Enhanced Soil Organic Carbon Estimation Open
Soil organic carbon (SOC) is a critical indicator of soil health, directly influencing crop productivity, soil structure, and environmental sustainability. Existing SOC estimation techniques using satellite reflectance data are effective f…
View article: Hybrid Bayesian Attention Model for estimating soil organic carbon from Landsat 8 satellite data
Hybrid Bayesian Attention Model for estimating soil organic carbon from Landsat 8 satellite data Open
View article: Suitability of river plastic monitoring methods for citizen science
Suitability of river plastic monitoring methods for citizen science Open
Rivers act as long-term plastic storage and a pathway for land-based plastic pollution into the ocean. Monitoring river plastic at a global scale remains challenging, with only limited large-scale and long-term monitoring efforts to date. …
View article: Hybrid Bayesian Attention Model for Estimating Soil Organic Carbon from Landsat 8 Satellite Data
Hybrid Bayesian Attention Model for Estimating Soil Organic Carbon from Landsat 8 Satellite Data Open
View article: Transformer-Guided Noise Detection and Correction in Remote Sensing Data for Enhanced Soil Organic Carbon Estimation
Transformer-Guided Noise Detection and Correction in Remote Sensing Data for Enhanced Soil Organic Carbon Estimation Open
View article: Transformer-Guided Noise Detection and Correction in Remote Sensing Data for Enhanced Soil Organic Carbon Estimation
Transformer-Guided Noise Detection and Correction in Remote Sensing Data for Enhanced Soil Organic Carbon Estimation Open
View article: Three-Dimensional Zeolitic Imidazolate Framework-8 as Sorbent Integrated with Active Capillary Plasma Mass Spectrometry for Rapid Assessment of Low-Level Wine and Grape Quality-Related Volatiles
Three-Dimensional Zeolitic Imidazolate Framework-8 as Sorbent Integrated with Active Capillary Plasma Mass Spectrometry for Rapid Assessment of Low-Level Wine and Grape Quality-Related Volatiles Open
The most commonly used methods to chemically assess grape and wine quality with high sensitivity and selectivity require lengthy analysis time and can be resource intensive. Here, we developed a rapid and non-destructive method that would …
View article: Sustainable Implementation of Citizen-Based Plastic Monitoring of Fresh Waters in Western Africa
Sustainable Implementation of Citizen-Based Plastic Monitoring of Fresh Waters in Western Africa Open
Citizen science projects globally have increasingly been implemented in collecting and analysing environmental data. At the same time, these initiatives are often project-based and, therefore, of short duration. This presents a challenge a…
View article: Effects of extra potassium supply and rootstocks indicate links between water, solutes and energy in Shiraz grapevines (Vitis vinifera) pericarps
Effects of extra potassium supply and rootstocks indicate links between water, solutes and energy in Shiraz grapevines (Vitis vinifera) pericarps Open
Potassium (K) is essential for the development of grapevines (Vitis vinifera), accumulating into berries during maturation. Elevated K has been associated with high sugar and low acidity in juice. Characterising the accumulation patterns o…
View article: Impact of light on protective fractions of Cu in white wine: Influence of oxygen and bottle colour
Impact of light on protective fractions of Cu in white wine: Influence of oxygen and bottle colour Open
Cu(II)-organic acid (fraction I) and Cu(I)-thiol (fraction II) complexes can suppress sulfhydryl off-aromas in wine. This study investigated the impact of light exposure on the protective fractions of Cu of bottled white wine. Fluorescent …
View article: Cultivar-dependent grape berry dehydration in later ripening phases may be associated with energy regulation and ionic homeostasis
Cultivar-dependent grape berry dehydration in later ripening phases may be associated with energy regulation and ionic homeostasis Open
Climate warming and drought may alter the progression of sugar accumulation by the grape berry, and contribute to pre-harvest berry shrivel and cell vitality loss which were hypothesised to be associated with solute accumulation cessation …
View article: Exploring Interactions Between Vineyard Performance, Grape and Wine Composition and Subregional Boundaries—The Terroir of Barossa Shiraz
Exploring Interactions Between Vineyard Performance, Grape and Wine Composition and Subregional Boundaries—The Terroir of Barossa Shiraz Open
Background and Aims: Viticulturists and winemakers have a considerable interest in understanding the influence of climate, soil, viticultural and winemaking practices on wine sensory outcomes—that is, understanding the terroir concept, whi…
View article: Plasticity of red wine sensory profiles: improved understanding through grape berry sugar loading profiles
Plasticity of red wine sensory profiles: improved understanding through grape berry sugar loading profiles Open
Reproducible aromatic red wine styles can be predicted based upon the measurement of grape berry sugar accumulation (corresponding to the quantity of sugar that accumulates per berry; mg/berry/day) and berry fresh mass. Distinct maturity s…
View article: Rapid In-Field Volatile Sampling for Detection of Botrytis cinerea Infection in Wine Grapes
Rapid In-Field Volatile Sampling for Detection of Botrytis cinerea Infection in Wine Grapes Open
Fungal infection of grape berries (Vitis vinifera) by Botrytis cinerea frequently coincides with harvest, impacting both the yield and quality of grape and wine products. A rapid and non-destructive method for identifying B. cinerea infect…
View article: Rapid In-Field Volatile Sampling for Detection and Quantification of Botrytis cinerea Infection in Wine Grapes
Rapid In-Field Volatile Sampling for Detection and Quantification of Botrytis cinerea Infection in Wine Grapes Open
Fungal infection of grape berries (Vitis vinifera) by Botrytis cinerea frequently coincides with harvest, impacting both the yield and quality of grape and wine products. A rapid and non-destructive method for identifying B. cinerea infect…
View article: Comparative Analysis of Machine and Deep Learning Models for Soil Properties Prediction from Hyperspectral Visual Band
Comparative Analysis of Machine and Deep Learning Models for Soil Properties Prediction from Hyperspectral Visual Band Open
Estimating various properties of soil, including moisture, carbon, and nitrogen, is crucial for studying their correlation with plant health and food production. However, conventional methods such as oven-drying and chemical analysis are l…
View article: Detection and prediction of Botrytis cinerea infection levels in wine grapes using volatile analysis
Detection and prediction of Botrytis cinerea infection levels in wine grapes using volatile analysis Open
Infection of grape berries (Vitis vinifera) by the fungus Botrytis cinerea (grey mould) frequently occurs in vineyards, resulting in off-flavours and other odours in wine and potential yield losses. In this study, volatile profiles of four…
View article: Enterococcus seriolicida: L-forms and antigen recognition by rainbow trout (Oncorhynchus mykiss)
Enterococcus seriolicida: L-forms and antigen recognition by rainbow trout (Oncorhynchus mykiss) Open
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View article: Characterisation of internal oxygen concentration of strawberry (Fragaria × ananassa) and blueberry (Vaccinium corymbosum)
Characterisation of internal oxygen concentration of strawberry (Fragaria × ananassa) and blueberry (Vaccinium corymbosum) Open
Gas exchange mechanisms play crucial roles in maintaining fruit post-harvest quality in perishable fruit such as strawberry (Fragaria × ananassa Duch.) and blueberry (Vaccinium corymbosum L.). The internal oxygen concentration ([O2]) of st…
View article: The Relationship Between Terroir and The Phenology of Barossa Shiraz
The Relationship Between Terroir and The Phenology of Barossa Shiraz Open
Background and Aims Vine phenology results from the interaction between the genotype, environment and management, with implications for fruit, and wine composition. The impact of weather, site and management practices, underlying elements …
View article: Soil Moisture, Organic Carbon, and Nitrogen Content Prediction with Hyperspectral Data Using Regression Models
Soil Moisture, Organic Carbon, and Nitrogen Content Prediction with Hyperspectral Data Using Regression Models Open
Soil moisture, soil organic carbon, and nitrogen content prediction are considered significant fields of study as they are directly related to plant health and food production. Direct estimation of these soil properties with traditional me…
View article: Secondary Metabolites Coordinately Protect Grapes from Excessive Light and Sunburn Damage during Development
Secondary Metabolites Coordinately Protect Grapes from Excessive Light and Sunburn Damage during Development Open
Sunburn is a physiological disorder that reduces grape quality and vineyard yield. It is the result of excessive sunlight and high temperatures. As climate change continues to increase air temperatures, reports of sunburn damage in vineyar…
View article: Auxin-type herbicide drift: effects on grapevine leaf functioning and reproductive performance
Auxin-type herbicide drift: effects on grapevine leaf functioning and reproductive performance Open
Auxin-type herbicides are widely used to control broad-leafed weeds in cereal crop fields and pastures. Vapour drift, however, can spread several kilometres and therefore reach nearby vineyards. When grapevines are exposed to these chemica…
View article: Identifying Individual Nutrient Deficiencies of Grapevine Leaves Using Hyperspectral Imaging
Identifying Individual Nutrient Deficiencies of Grapevine Leaves Using Hyperspectral Imaging Open
The efficiency of a vineyard management system is directly related to the effective management of nutritional disorders, which significantly downgrades vine growth, crop yield and wine quality. To detect nutritional disorders, we successfu…
View article: Regionality in Australian Shiraz: compositional and climate measures that relate to key sensory attributes
Regionality in Australian Shiraz: compositional and climate measures that relate to key sensory attributes Open
Background and Aims Regional characters or the 'terroir' aspects of Shiraz are not well understood. This study aimed to characterise the chemical composition of wines from sites within six important Australian regions, and the climate prof…
View article: Performing sequential harvests based on berry sugar accumulation (mg/berry) to obtain specific wine sensory profiles
Performing sequential harvests based on berry sugar accumulation (mg/berry) to obtain specific wine sensory profiles Open
This study aimed to investigate the possible existence of reproducible aromatic red wine styles, focusing on fresh fruit aromas and mature fruit aromas (i.e., with dark, jammy fruit characteristics) and taking into account both vintage and…
View article: Characterising leaf petiole, blade and bunchstem nutrient concentration across three grapevine cultivars
Characterising leaf petiole, blade and bunchstem nutrient concentration across three grapevine cultivars Open
Background and Aims Tissue nutrient concentration is useful for determining vine nutritional status and managing vineyard nutrition. Current Australian guidelines are based on the analysis of petioles at flowering and leaf blades at verais…
View article: Vascular Connections Into the Grape Berry: The Link of Structural Investment to Seededness
Vascular Connections Into the Grape Berry: The Link of Structural Investment to Seededness Open
Vascular bundles in the grape pedicel and berry contain the conduits, phloem and xylem, for transport of water, sugar, nutrients and signals into and through the grape berry and play a critical role in berry growth and composition. Here, w…
View article: 3D visualisation of voids in grapevine flowers and berries using X‐ray micro computed tomography
3D visualisation of voids in grapevine flowers and berries using X‐ray micro computed tomography Open
Background and Aim X-ray micro computed tomography (micro-CT) is a non-destructive 3D imaging technique that has been applied to plant morphology and anatomical studies to gain a better understanding of physiological phenomena in vivo. It …
View article: Hyperspectral Imaging to detect Age, Defects and Individual Nutrient\n Deficiency in Grapevine Leaves
Hyperspectral Imaging to detect Age, Defects and Individual Nutrient\n Deficiency in Grapevine Leaves Open
Hyperspectral (HS) imaging was successfully employed in the 380 nm to 1000 nm\nwavelength range to investigate the efficacy of detecting age, healthiness and\nindividual nutrient deficiency of grapevine leaves collected from vineyards\nloc…