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My research team in crop protection is studying the biology, epidemiology and ecology of economically significant diseases and insect pests. The overarching objective of the research is to facilitate innovative and sustainable management of crop pests (insects and diseases) using disruptive new tools that can be incorporated with the less harmful existing control options in diverse farming systems.

Dr Mobashwer Alam is a Senior Research Fellow at the Centre for Horticultural Science, a theme leader of Predictive Agriculture for Improved Productivity and Value, an Advance Queensland Industry Fellow, and the team leader of the National Passionfruit Breeding and Evaluation Program (PF22000) at the Queensland Alliance for Agriculture and Food Innovation, UQ. He is currently based at Maroochy Research Station, Nambour, QLD 4560, Sunshine Coast. He has more than twenty years of research and teaching experience in the public and private industries and in universities in Australia and Bangladesh. Dr Alam has experience in multi-disciplinary research, including plant breeding, quantitative genetics, genomics, plant physiology, and crop modelling. Before joining at QAAFI, Dr Alam had been working as a Senior Plant Breeder (Grain Sorghum) at Nuseed Pty Ltd. He achieved his PhD in plant molecular genetics through the School of Agriculture and Food Sciences of the University of Queensland. Before coming in Australia in 2008, Dr Alam had been working as a lecturer and assistant professor of the Department of Genetics and Plant Breeding at Patuakhali Science and Technology University in Bangladesh. Throughout his academic and research career, he worked on multiple crops, including Macadamia, Passionfruit, Stone Fruits, Sorghum, Sugarcane, Lablab Bean, Tomato, Okra, and Ash Gourd. He is interested in developing rapid breeding tools and utilizing plant genomics in horticultural crop improvement.

Dr. Pratheep Annamalai is a polymer and nanomaterials scientist with a keen interest in engineering materials for sustainable living. He is an Adjunct Senior Research Fellow at the School of Agriculture and Food Sciences. He has extensive expertise in both translational and fundamental research using nanotechnological tools towards sustainability. Currently, he is interested in alternative proteins and valorisation of agricultural crops and food waste into reactive, building blocks for improving the performance and utility of bioproducts. Thematically, his research focuses on

• Food Processing (plant-based food products)
• Bioproducts (from agri-food waste)
• Sustainable building blocks (for advanced materials).

Before joining UQ, Pratheep studied Chemistry in University of Madras, received PhD in Chemistry from University of Pune (India), then went on to work as a postdoctoral researcher on hydrophobic membranes at the Université Montpellier II (France), and on ‘stimuli-responsive smart materials’ at the Adolphe Merkle Institute - Université de Fribourg (Switzerland).

Upon being instrumental in the discovery of ‘spinifex nanofibre nanotechnology’ and establishing Australia’s first nanocellulose pilot-plant, he has been awarded UQ Excellence awards for leadership and industry partnerships for 2019. Recognising his contribution to the nanomaterials, polymer nanocomposites, polymer degradation and stabilisation regionally and globally, he has been invited to serve as a committee member for ISO/TC229-WG2 for characterisation of nanomaterials (2016), a mentor in TAPPI mentoring program (2018), guest/academic editor for various journals (Fibres, Int. J Polymer Science, PLOS One). He has served as a member of the UQ-LNR ethics committee for reviewing the applications (2017-) and a member of the AIBN-ECR committee in 2014.

Dr Awale is a post-doctoral fellow in the University of Queensland since 2023 and has been investigating N and P cycling and management in cotton and wheat cropping systems using chemical fertilisers and animal manures (poultry, beef-feedlot, and swine). He received a PhD degree in Soil Science in 2015 from North Dakota State University, USA with primary research focus on soil N cycling with different fertiliser N application rates, timings, and sources including enhanced efficiency N products (urease inhibitor, nitrification inhibitor, urease plus nitrification inhibitors, and polymer-coated urea) and water management practices (subsurface tile-drained vs non-drained) in poorly-drained soils under broadacre cropping systems. Between 2015 to 2018, he worked as a post-doctoral scholar at the Columbia Basin Agricultural Research Centre (Oregon State University, USA), where he looked into SOM dynamics, soil health, soil acidification and fertility, and crop productivity responses to tillage and residue management, crop rotation and intensification, cover cropping, mineral fertiliser application, and biochar, animal manure and crop residue amendments in dryland cropping systems. Dr Awale moved to Australia and joined the Centre for Regional and Rural Futures of Deakin University as a post-doctoral research fellow in 2020. At Deakin, he investigated the effectiveness of poultry litter amendments in improving soil health, fertility, cotton nutrition (N, P, S, Zn) and production in constrained soils of southern NSW.

Dr Peter Baker is an Honorary Associate Professor at the Queensland Alliance for Agriculture and Food Innovation

From 2021-2023, Peter was an Honorary Senior Lecturer at the School of Public Health, University of Queensland. For twelve years until the end of 2020, he was a Senior Lecturer in Biostatistics at the School of Public Health and a senior statistical collaborator, advisor and consultant to several research projects in the Faculty of Medicine, School of Public Health.

With fourty years experience as a statistical consultant and researcher, Peter has a passion for biometrics in agricultural research and biostatistics applied to public health and medical research. He also champions reproducible research and reporting and to this end has developed R and Make software to aid the workflow of data analysts in any field. As a statistical consultant and collaborator, he has contributed to many agricultural, genetic, public health and medical research projects. His contribution has ranged from advice on standard statistical approaches to the application of novel methods to improve statistical analysis or the development of new statistical methodology to fill a gap in the knowledge.

Peter's current research interests:

• efficient statistical computing using R, Make, Git and related software for the workflow of data analysis,
• reproducible research and reporting using R, Markdown, Quarto and Sweave,
• tailoring R functions and developing bespoke packages for specific statistical analyses, and
• applied statistlcal research in novel methods for epidemiological and medial research, including
  • graphical models for multivariate data in epidemiology,
  • statistical methods for modelling trajectories of alcohol consumption in youths,
  • propensity score analysis to adjust for selection bias in observational studies, and
  • Bayesian methods for epidemiological and medical MCMC studies.

Dr Baker is an Accredited Statistician (ASTAT) with the Statistical Society of Australia (see SSAI_Accreditation)

Career Summary: I obtained my B. Tech., Dairy Technology degree from SMC College of Dairy Science, Gujarat, India in 2003. I graduated with a PhD degree in dairy chemistry from the University College Cork, Ireland in 2007. After gaining experience as a postdoctoral fellow in the California Polytechnic State University for 2 years, I joined UQ as a research officer in 2010 and was appointed as a lecturer in 2011 and promoted to associate professor in 2021.

I am a milk and bioprocessing expert with significant experience in dairy processing including alternative methods, milk protein structure and functionality, milk product drying systems, and rapid quantification assays of milk biomolecules. My research spans from fundamental milk protein chemistry to physiologically important milk enzymes. I am leading a UQ-QUT alliance with the RBWH, on innovative pasteurisation of breastmilk through NHMRC Ideas and Children Hospital Foundation grants. This aims to translate my dairy research expertise into enhancing nutrition of low-birth-weight babies, as well as improving infant gut microbiota. This has expanded to related research, including alternative pasteurisation of camel milk, a high-value product used as bovine milk alternative for human nutrition. Since 2011, I have led the ‘non-thermal processing research program’ at UQ. I was one of six research theme leaders (food quality) as well as management committee member in an ARC Industry Transformation Research Hub (2014-2020) that involved 26 researchers. I am currently one of the four program leads for the Food and Beverage Accelerator Trailblazer grant ($165 M) led by UQ. I am also leading the education and training program and am part of the steering committee for a Strategic University Reform Fund (SURF) ($6.9 M) from Department of Education, Skills and Employment.

Research interests:

• Alternative processing techniques to preserve milk and milk products: I have led the ‘non-thermal processing research program’ at UQ since 2011, studying non-thermal techniques such as carbon dioxide, pulsed electric field (PEF), and high-pressure processing (HPP) for milk pasteurisation to minimise loss of heat-labile biomolecules (incl. vitamins/minerals) while ensuring microbial safety.
• Non-bovine milk systems: Since 2014, my research on preserving microbial integrity of dairy stream products for longer periods has evolved in exploring non-bovine systems such as human and camel milk. I have developed expert knowledge of their composition, enzymology, bioactive molecules and digestibility.
• Protein structure and functionality: I have led many studies analysing fundamental properties of milk proteins and their interaction with hydrocolloids. I have considerable expertise in studying protein structure, interactions and denaturation and their functional properties applicable to dairy systems such as texture, rheology, tribology, foaming, gelling and emulsifying properties and surface hydrophobicity. Most recently, I have led development of highly sensitive, high-throughput methods to analyse immunoprotective enzyme activities in human, bovine, goat and camel milk.

Publications and contribution to field of research: I have published >150 peer-reviewed research articles and book chapters, >87% in Q1 journals (JCR Journal Rankings). My h-index is 31 (Scopus) and 38 (Google Scholar) (March, 2023). My research demonstrates international reach, being cited across 103 countries (March 2023). I have been cited by authors from 25 different subject areas, which demonstrates the impact of my research beyond my own subject area of Agricultural and Biological Sciences to fields such as of Medicine, Chemical Engineering, Immunology and Microbiology, Social Science, Nursing, Materials Science and Engineering (Mar 2023). My overall Field-Weighted Citation Impact (FWCI) for all subject areas is 1.59 (Mar 2023). I have 4 highly cited papers in the academic field of Agricultural Science (Web of Science, Mar 2023) and 25 publications in the top 10% most cited publications worldwide (field-weighted) (SciVal, Mar 2023). I am ranked as a Top 1% author in the ESI category of Agricultural Sciences. My publications demonstrate impact beyond the scholarly community. Several of my publications have also been cited in patent documents and have outstanding Altmetric scores (top 5%) with numerous social media, news and blog mentions.

Research support: Since joining the UQ, I have been involved in 17 successful funding proposals and has secured significant research funding through competitive grants. I am a CI on grants worth >$183 million. I have been able to attract funding from a variety of sources such as ARC, NHMRC, DESE, Dairy Innovation Australia Limited (DIAL), UniQuest, Children Hospital Foundation, direct commercial sources and the UQ.

Mentoring: Since 2014, I have supervised 27 HDR students (12 as principal advisor) and >60 Coursework Masters/ Honours students. I have has mentored three postdoctoral fellows.

Professional activities: I am a member of Clinical Advisory Board, Australian Red Cross Lifeblood Milk since 2020. I am the Director of Teaching and Learning for UQ’s School of Agriculture and Food Sciences since 2021. I am an editorial board member of Scientific Reports, Foods, and Journal of Dairy Research.

Professor of Biometry

Research Interests:

Research at the interface between applied statistics and quantitative genetics with extensive publications on the analysis and interpretation of multi-way data from large-scale plant breeding experiments, particularly those involving genotype by environment interaction. Theory and application of pattern analysis - clustering and ordination procedures - appropriate for data collected from plant breeding experiments and/or stored in germplasm databases. Analysis, interpretation and impact of genotype x environment interaction for primary economic plant attributes (yield and quality) and data management, integration and analysis (bioinformatics).

Other Activities:

Past President of the International Biometric Society (2010-11) and the Statistical Society of Australia Incorporated (2005-07). Life member of the Statistical Society of Australia Incorporated (2010). Australian Medal for Agricultural Science from the Australian Institute of Agricultural Science and Technology (1998).

Previous Head of the School of Land, Crop and Food Sciences (2001-10).

Fellow of the Australian Academy of Technological Sciences and Engineering, Australian Institute of Company Directors, Australian Institute of Agricultural Science and Technology and Institute of Statisticians (which has merged with the Royal Statistical Society).

Member of the Board of Trustees of the International Rice Research Institute (2013-15).

Graduated with a B Agric Science (Hons() degree from UQ in 1978, after which I worked as a research agronomist for the West Australian Dept of Agriculture at Kununurra, in the Ord River Irrigation Area, until 1983. During that period I worked primarily with grain legumes (chickpeas and cowpeas) and peanuts, focussing on agronomic management practices (fertilisers, soil amendments, crop protection strategies, irrigation), and enrolled part time in a research Masters on growth physiology of peanuts through UQ. IThe M AgrSc was conferred in 1985.

I took up a position with the Qld Dept Primary Industries at Kingaroy in mid 1983, working on soil fertility management/restoration and continuing to research the physiology of the peanut crop. We ran long term farming systems experiments, and also participated in and ultimately led two successive phases of ACIAR funded research on peanut production in Indonesia.

In 1990 I was granted study leave from DPI to undertake a sponsored PhD program at the University of Guelph, Ontario, Canada. This was completed in 1993 and I returned to Kingaroy with DPI, where I remained based at the Kingaroy Research Station until 2014. During that time our research focussed on soil fertility management (especially P and K), soil physical restoration using ley pastures, soil water dynamics and legume N fixation in rainfed cropping systems, and also in researching the Yield Decline phenomenon in the sugar industry. The latter was a major collaborative, multidisciplinary research project over 15 years, that led to the design and testing of a new sugarcane cropping system. Most research was externally funded, through the Grains, Cotton and Sugar Research and Development Corporations.

In 2010 I was invited to join UQ on secondment at the establishment of the Qld Alliance for Agriculture and Food Innovation (QAAFI), and accepted that role while being based in Kingaroy. In 2014 I was appointed to the Chair in Tropical Agronomy in the School of Agriculture and Food Science (SAFS) at Gatton Campus, relocating to Gatton in 2015, but remain a QAAFI Affiliate. Since that time, I have increasingly focussed on soil fertility management and the development and testing of management strategies to optimize the efficiency of nutrients and water in grains, cotton and sugarcane cropping systems.

I have led an ACIAR project developing more sustainable management systems for sloping lands in NW Vietnam and NE Laos, and have also been involved in advisory bodies associated with the Reef Water Quality Management Plan, and with overseeing research activity in grains and sugarcane industries. Currently I lead national and regional research projects on improving fertiliser N management and reducing greenhouse gas emissions in the grains cropping systems in Australia, funded by GRDC and the Federal Goverment Soil Science Challenge initiative.

Overview

Dr Borrell obtained bachelor and master’s degrees in Agricultural Science at The University of Melbourne, focusing on the Green Revolution genes (Rht1 and Rht2) in wheat for his thesis. He then completed a PhD at The University of Queensland on improving the efficiencies of nitrogen and water use for rice in the semi-arid tropics. Andrew was awarded a Churchill Fellowship to study the impact of rice research in Asia and the US on rice production in the Australian tropics. Much of his post-doctoral research has focused on improving drought adaptation in sorghum, rice, wheat and barley.

Dr Borrell is a crop physiologist and Centre Leader of the Queensland Government’s Hermitage Research Facility, a centre of excellence for crop improvement in water-limited environments. For more than a decade, Andrew has led an international project (Australia/US) aimed at discovering key genes underpinning the stay-green drought adaptation trait in cereals, using sorghum as a model crop. Prior to this, he conducted research to better understand the physiological basis of stay-green in sorghum. Dr Borrell began his career as a rice agronomist with the Queensland Government.

Dr Borrell co-leads projects in sub-Saharan Africa and India to develop drought-adapted sorghum germplasm. In addition to drought physiology in major cereals, Andrew has supervised a research program aimed at discovering frost adaptation in winter cereals at heading stage. He has also worked extensively in South-East Asia for the past 25 years developing sustainable cropping systems, including recent research on rice production and adaptation to climate change in Vietnam. Dr Borrell has served as Secretary-General of the Asian Crop Science Association.

Dr Bradley Campbell has over 10 years’ experience in plant biotechnology research and since 2003 has held research positions focused on plant molecular genetics. His research involves the use of genomic tools for crop improvement, with an emphasis on the sustainable production of grain crops. Major focus is on the improvement of crops for food, feed and bio-industrial end-uses. For the past 5 years he has also been involved in hay fever studies, focused on metagenomics of the aerobiome of Australian climates and its links to allergy. Current projects involve the genotyping of the Pacific Islands in vitro taro collection for germplasm preservation and breeding purposes, investigation into infrared spectral cameras and their applicability to taro salinity screening, as well as a comphrehensive bio-geographic analysis of the urban Australian aerobiome and its links to allergic rhinitis.

Lilia works to unravel the overwhelming complexity of the biological world and to assess ways to use it to solve problems of our time. She finds especially intriguing all the invisible interactions between plant and microbes. She investigates the drivers of these interactions and aims to address major societal challenges. Her purpose is to make use of nature’s arsenal to tackle problems that threaten environmental conservation and food security. She has worked with a range of beneficial and pathogenic microbes across model, forestry, grain, and horticultural plant species, grown in managed and natural habitats in different countries, including Brazil, Germany, Australia, USA, Costa Rica, and Papua New Guinea. Her expertise lies within plant pathology, molecular biology, plant nutrition, microbial ecology, biological indicators of soil health, bio-prospection of natural products produced by microbes, plant biotechnology, and molecular diagnostics.

Summary of Research:

• My current research at UQ is as Professor in this School (teaching AGRC3040 Crop Physiology) and as an Affiliate Professor of QAAFI. Since 2020, with full-time appointment at UQ, my research portfolio has included multiple projects in applications of machine learning and artificial intelligence into the ag domain. This area is developing rapidly and across UQ, I am engaging with faculty in multiple schools (ITEE, Maths and Physics, Mining and Mech Engineering) as well as in the Research Computing Centre to develop new projects and training opportunities at the interface of field agriculture and these new digital analytics.
• My career research has been around genetic and environment effects on physiology of field crops, particularly where drought dominates. Application of quantitative approaches (crop simulation and statistical methods) and phenotyping (aerial imaging, canopy monitoring) to integrate the understanding of interactions of genetics, growth and development and the bio-physical environment on crop yield. In recent years, this work has expanded more generally into various applications in digital agriculture from work on canopy temperature sensing for irrigation decisions (CSIRO Entrepreneurship Award 2022) through to applications of deep-learning to imagery to assist breeding programs.
• Much of this research was undertaken with CSIRO since 1996. Building on an almost continuous collaboration with UQ over that time, including as an Adjunct Professor to QAAFI, Prof Chapman was jointly appointed (50%) as a Professor in Crop Physiology in the UQ School of Agriculture and Food Sciences from 2017 to 2020, and at 100% with UQ from Sep 2020. He has led numerous research projects that impact local and global public and private breeding programs in wheat, sorghum, sunflower and sugarcane; led a national research program on research in ‘Climate-Ready Cereals’ in the early 2010s; and was one of the first researchers to deploy UAV technologies to monitor plant breeding programs. Current projects include a US DoE project with Purdue University, and multiple projects with CSIRO, U Adelaide, La Trobe, INRA (France) and U Tokyo. With > 8500 citations, Prof Chapman is currently in the top 1% of authors cited in the ESI fields of Plant and Animal Sciences and in Agricultural Sciences.

Professor Bhagirath Chauhan joined the Queensland Alliance for Agriculture and Food Innovation (QAAFI) at The University of Queensland in 2014. He now has a joint appointment with QAAFI and SAFS at UQ. He leads research on weed biology and weed management in different crops, including wheat, maize, sorghum, mungbean, soybean, chickpea, rice, and cotton. He has studied the seed ecology of >100 weed species and he has a vast experience in developing integrated weed management options based on agronomic approaches (row spacing, seeding rates, weed-competitive cultivars, etc.). Prof Chauhan has more than 20 years of research experience in conducting trials on the improved agronomy of new production systems and integrated weed management options in Australia and >10 Asian countries. Before joining UQ, Prof Chauhan worked at the International Rice Research Institute (IRRI) in the Philippines for seven years. He has a strong collaboration in several countries, including USA, Sri Lanka, India, Nepal, Iran, Pakistan, Nigeria and China. His research interests include weed ecology and biology, herbicide use, management of herbicide-resistant weeds, non-chemical weed management options, integrated weed management systems using agronomic and varietal components, nanoherbicides, tillage systems, and conservation agriculture systems. He is a Speciality Chief Editor with Frontiers in Agronomy and an Associate Editor of Weed Science (Weed Science Society of America). He has published over 350 articles in peer reviewed journals and several books and book chapters. He is an Honorary Member of Weed Science Society of America (WSSA) and a life member of International Weed Science Society (IWSS), Asia Pacific Weed Science Society (APWSS), and Indian Society of Weed Science (ISWS).

Dr Karine Chenu is Associate Professor at the Queensland Alliance for Agriculture and Food Innovation (QAAFI) at the University of Queensland. Karine has expertise in ecophysiology, genetics and modelling with a focus on drought and heat adaptation.

Her group is conducting research that supports crop modelling technology, plant design and breeding strategies in winter cereals.

Her research mainly concerns: - understanding trait physiology and genetics, - developing gene-to-phenotype crop modelling - exploring novel combinations of genotypes, environments and management practices to assist productivity improvement in changing environments.

Karine collaborates with plant breeders, geneticists, modellers and agronomists in a range of national and international research projects in both public and private sectors.

She is also one of the UQ representatives on the APSIM Initiative Reference Panel, which is responsible for the on-going development of the APSIM model (www.apsim.info), which is now used world-wide.

Dr Peter Crisp is an expert in crop genomics, epigenomics and molecular genetics. He leads a research group in the School of Agriculture and Food Science. His research group seeks to understand the contribution of epigenetics to heritable phenotypic variation in crop plants, focusing on cereals including barley, sorghum, wheat and maize. This includes the development of methods to harness epigenetic variation for crop improvement; understanding the role of epigenetics in stress responses and using innovative epigenomic approaches to distill large genomes down to the relatively small fraction of regions that are functionally important for trait variation. Research in the Crisp Lab spans both wet lab and computational biology providing a powerful platform to integrate genetic, genomic and biotechnological approaches.

Check out the CrispLab website here

Follow Dr Crisp on Twitter: @pete_crisp

Professor Ram Dalal is a Professor in the School of Agriculture and Food Science at the University of Queensland, Brisbane, Australia. He has contributed significantly to create awareness in the farming, scientific and general community to the seriousness and insidious nature of soil degradation. As a consequence, restorative practices for sustainable land management were developed and promoted. The international nature of the program was demonstrated by the fact that it was part of the Tropical Soil Biology and Fertility Program. It is now nationally recognized by policy makers and politicians that land degradation and sustainable land management are the national and international priorities. These projects have made significant contribution towards these issues.

In the last 30 years Dr Dalal has worked towards sustainable land management systems, nitrogen management and soil carbon dynamics. He was the co-leader of soil carbon program in the CRC for Greenhouse Accounting (199-2006), leader of soil carbon changes following land clearing funded by the Australian Greenhouse Office (1998-2002), reviewer for the IPCC Good Practice Guidance (2006) for the land sector, and leader of the National Soil Carbon Program (2012-2015) and Soil Constraints Initiative - Management of Sodic, Magnesic or Dispersive Soils (2015). He has been a consultant and project research contributor to the International Atomic Energy Agency (2004-2009). Recently, he has led a number of projects on estimating soil carbon stock following land use change from native vegetation to croplands, grazing lands, and management of croplands and grazing lands and rangelands (2009-2015) funded by the Department of Environment and Heritage, Department of Agriculture, Fisheries and Forestry and Department of Agriculture, Commonwealth of Australia. In addition, he has also been involved in estimating nitrous oxide and methane emissions/ uptake from different ecosystems including agriculture, grassland, plantation forestry and estuarine/ mangrove systems (2000 – 2015). He led the National Soil Carbon Program from 2012 to 2015.

Dr Elizabeth (Liz) Dann joined QAAFI’s Centre for Plant Science in October 2010. She is a plant pathologist based at the Ecosciences Precinct at Dutton Park. Her research aims to increase the productivity and quality of tropical and sub-tropical crops through improved management of diseases.

She obtained her PhD in 1995 from the University of Sydney, and undertook post doctoral research at Michigan State University, USA and at the University of Sydney, prior to joining the Plant Pathology (Horticulture) research team within the Queensland Government in 2002.

RESEARCH INTERESTS

Dr Dann has broad expertise in the discipline of plant pathology. Her diverse area of research includes investigation of natural defence mechanisms in plants, plant disease epidemiology and diagnostics. Her research is very focused on delivering improved quality and productivity to horticultural industries through optimised disease management.

She is recognised internationally for her work on systemic induced resistance in plants and its practical implementation. A large component of her research is focused on assessing non-traditional products or treatments that may be valuable in disease management, such as compounds which activate disease resistance pathways. Such products are becoming more popular given concerns over pesticides in the environment and residues in fruit, and the drive towards more sustainable production of our food.

Dr Dann supervises several students on projects investigating molecular diversity and epidemiology of fungal pathogens and constitutive and inducible plant defences.

Current active areas of research include: assessment of avocado rootstocks for resistance to Phytophthora cinnamomi optimising phosphonate treatments for management of Phytophthora root rot epidemiology of brown root rot disease of avocados and related molecular diversity of causal “Phellinus noxius” fungi assessment of best management practices for reducing losses in mango and avocado caused by postharvest diseases investigations of UV-C exposure of fruit for disease control systemic induced resistance in passionfruit to Passionfruit Woodiness Virus evaluation of soil amendments for improved soil and plant health and soilborne disease suppression.