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Your search keyword '"Celestina, Corinne"' showing total 19 results
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19 results on '"Celestina, Corinne"'

3. Bacterial community shifts occur primarily through rhizosphere expansion in response to subsoil amendments.

Author

Vido, Joshua J., Wang, Xiaojuan, Sale, Peter W. G., Celestina, Corinne, Shindler, Anya E., Hayden, Helen L., Tang, Caixian, Wood, Jennifer L., and Franks, Ashley E.

Subjects
BACTERIAL communities, SOIL ecology, SOIL management, BACTERIAL ecology, AGRICULTURE
Abstract

To comprehensively evaluate the impact of agricultural management practices on soil productivity, it is imperative to conduct a thorough analysis of soil bacterial ecology. Deep‐banding nutrient‐rich amendments is a soil management practice that aims to improve plant growth and soil structure by addressing the plant‐growth constraints posed by dense‐clay subsoils. However, the response of bacterial communities to deep‐banded amendments has not been thoroughly studied. To address this knowledge gap, we conducted a controlled‐environment column experiment to examine the effects of different types of soil amendments (poultry litter, wheat straw + chemical fertiliser and chemical fertiliser alone) on bacterial taxonomic composition in simulated dense‐clay subsoils. We evaluated the bacterial taxonomic and ecological group composition in soils beside and below the amendment using 16S rRNA amplicon sequencing and robust statistical methods. Our results indicate that deep‐banded amendments alter bacterial communities through direct and indirect mechanisms. All amendments directly facilitated a shift in bacterial communities in the absence of growing wheat. However, a combination of amendments with growing wheat led to a more pronounced bacterial community shift which was distinct from and eclipsed the direct impact of the amendments and plants alone. This indirect mechanism was evidenced to be mediated primarily by plant growth and hypothesised to result from an enhancement in wheat root distribution, density and rhizodeposition changes. Therefore, we propose that subsoil amendments regardless of type facilitated an expansion in the rhizosphere which engineered a substantial plant‐mediated bacterial community response within the simulated dense‐clay subsoils. Overall, our findings highlight the importance of considering the complex and synergistic interactions between soil physicochemical properties, plant growth and bacterial communities when assessing agricultural management strategies for improving soil and plant productivity. [ABSTRACT FROM AUTHOR]

Published
2024
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4. Scales of development for wheat and barley specific to either single culms or a population of culms

Author

Celestina, Corinne, primary, Hunt, James, additional, Brown, Hamish, additional, Huth, Neil, additional, Andreucci, Mariana, additional, Hochman, Zvi, additional, Bloomfield, Maxwell, additional, Porker, Kenton, additional, McCallum, Melissa, additional, Harris, Felicity, additional, Matthews, Mary, additional, Biddulph, Ben, additional, Al Yaseri, Ghazwan, additional, Nicol, Dion, additional, Hyles, Jessica, additional, Wang, Enli, additional, Zheng, Bangyou, additional, Zhao, Zhigan, additional, and Kohout, Michele, additional

Published
2023
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5. Corrigendum to “Scales of development for wheat and barley specific to either single culms or a population of culms” [Eur. J. Agron. 147 (2023) 126824]

Author

Celestina, Corinne, Hunt, James, Brown, Hamish, Huth, Neil, Andreucci, Mariana, Hochman, Zvi, Bloomfield, Maxwell, Porker, Kenton, McCallum, Melissa, Harris, Felicity, Matthews, Mary, Biddulph, Ben, Al Yaseri, Ghazwan, Nicol, Dion, Hyles, Jessica, Wang, Enli, Zheng, Bangyou, Zhao, Zhigan, and Kohout, Michele

Published
2023
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6. Vernalisation and photoperiod responses of diverse wheat genotypes

Author

Bloomfield, Maxwell T., primary, Celestina, Corinne, additional, Hunt, James R., additional, Huth, Neil, additional, Zheng, Bangyou, additional, Brown, Hamish, additional, Zhao, Zhigan, additional, Wang, Enli, additional, Stefanova, Katia, additional, Hyles, Jessica, additional, Rathjen, Tina, additional, and Trevaskis, Ben, additional

Published
2023
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7. A cultivar phenology classification scheme for wheat and barley

Author

Celestina, Corinne, primary, Hunt, James, additional, Kuchel, Haydn, additional, Harris, Felicity, additional, Porker, Kenton, additional, Biddulph, Ben, additional, Bloomfield, Maxwell, additional, McCallum, Melissa, additional, Graham, Rick, additional, Matthews, Peter, additional, Aisthorpe, Darren, additional, Al-Yaseri, Ghazwan, additional, Hyles, Jessica, additional, Trevaskis, Ben, additional, Wang, Enli, additional, Zhao, Zhigan, additional, Zheng, Bangyou, additional, Huth, Neil, additional, and Brown, Hamish, additional

Published
2023
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12. Exploiting genotype × management interactions to increase rainfed crop production: a case study from south-eastern Australia

Author

Hunt, James R, primary, Kirkegaard, John A, additional, Harris, Felicity A, additional, Porker, Kenton D, additional, Rattey, Allan R, additional, Collins, Marisa J, additional, Celestina, Corinne, additional, Cann, David J, additional, Hochman, Zvi, additional, Lilley, Julianne M, additional, and Flohr, Bonnie M, additional

Published
2021
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15. Vernalisation and photoperiod responses of diverse wheat genotypes

Author

Bloomfield, Maxwell T., Celestina, Corinne, Hunt, James R., Huth, Neil, Zheng, Bangyou, Brown, Hamish, Zhao, Zhigan, Wang, Enli, Stefanova, Katia, Hyles, Jessica, Rathjen, Tina, and Trevaskis, Ben

Abstract

Context Wheat (Triticum aestivum L.) adaptation is highly dependent on crop lifecycle duration, particularly the time at which flowering occurs in a specific environment. Frost, low solar radiation, heat and drought can significantly reduce yield if a crop flowers too early or late. Wheat genotypes have different lifecycle durations determined by plant responses to temperature (thermal time accumulation and vernalisation) and photoperiod. These responses are largely controlled by five phenology genes (two PPD1 and three VRN1 genes). Advances in crop phenology modelling suggest that flowering time under field conditions could be accurately predicted with parameters derived from photoperiod and vernalisation responses obtained in controlled environments. Aims This study quantified photoperiod and vernalisation responses of 69 Australian wheat genotypes selected for diversity at the PPD1 and VRN1 loci. Methods Spring and winter genotypes were grown in four controlled environments at a constant temperature of 22°C with photoperiod (17 or 8h) and vernalisation (0 or 8weeks) treatments as factors. Key results Thermal time from coleoptile emergence to flowering in spring genotypes was typically decreased more by long photoperiod than by vernalisation; the opposite was true for winter genotypes. Spring genotypes that were sensitive to vernalisation contained a sensitive allele at the Vrn-A1 locus. Conclusions There is large diversity in phenological responses of wheat genotypes to photoperiod and vernalisation, including among those with matching multi-locus genotype. Implications Data from this study will be used to parameterise and test a wheat phenology model in a future study.

Published
2022
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