Silicon enhances drought resistance in rice (Oryza sativa L.)

Pornpun Yanaso

doi:10.26182/326t-6z82

Silicon enhances drought resistance in rice (Oryza sativa L.)

Pornpun Yanaso

UWA School of Agriculture and Environment

Research output: Thesis › Doctoral Thesis

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Abstract

This Ph.D. thesis characterised the relationship between Si accumulation in rice shoots and drought resistance. The findings highlighted that high shoot Si accumulation positively related to drought resistance. Silicon application enhanced drought resistance of rice through the improvement of net photosynthetic rate and plant water status. High-Si rice genotype had a capacity to accumulate larger amounts of Si than low-Si genotype, resulting in a greater shoot and root growth in the former under either non-stress or stress conditions. The findings suggest that the cultivation of high-Si genotype combined with Si application could enhance rice crop growth and water-use efficiency.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Rengel, Zed, Supervisor Barton, Louise, Supervisor
Award date	22 Sept 2020
DOIs	https://doi.org/10.26182/326t-6z82
Publication status	Unpublished - 2020

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10.26182/326t-6z82

THESIS - DOCTOR OF PHILOSOPHY - YANASO Pornpun - 2020
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Cite this

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title = "Silicon enhances drought resistance in rice (Oryza sativa L.)",

abstract = "This Ph.D. thesis characterised the relationship between Si accumulation in rice shoots and drought resistance. The findings highlighted that high shoot Si accumulation positively related to drought resistance. Silicon application enhanced drought resistance of rice through the improvement of net photosynthetic rate and plant water status. High-Si rice genotype had a capacity to accumulate larger amounts of Si than low-Si genotype, resulting in a greater shoot and root growth in the former under either non-stress or stress conditions. The findings suggest that the cultivation of high-Si genotype combined with Si application could enhance rice crop growth and water-use efficiency.",

keywords = "Silicon accumulation, Rice genotype, Drought, Water-use efficiency, Paddy rice, Irrigation, Shoot biomass, Root biomass",

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language = "English",

school = "The University of Western Australia",

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AU - Yanaso, Pornpun

PY - 2020

Y1 - 2020

N2 - This Ph.D. thesis characterised the relationship between Si accumulation in rice shoots and drought resistance. The findings highlighted that high shoot Si accumulation positively related to drought resistance. Silicon application enhanced drought resistance of rice through the improvement of net photosynthetic rate and plant water status. High-Si rice genotype had a capacity to accumulate larger amounts of Si than low-Si genotype, resulting in a greater shoot and root growth in the former under either non-stress or stress conditions. The findings suggest that the cultivation of high-Si genotype combined with Si application could enhance rice crop growth and water-use efficiency.

AB - This Ph.D. thesis characterised the relationship between Si accumulation in rice shoots and drought resistance. The findings highlighted that high shoot Si accumulation positively related to drought resistance. Silicon application enhanced drought resistance of rice through the improvement of net photosynthetic rate and plant water status. High-Si rice genotype had a capacity to accumulate larger amounts of Si than low-Si genotype, resulting in a greater shoot and root growth in the former under either non-stress or stress conditions. The findings suggest that the cultivation of high-Si genotype combined with Si application could enhance rice crop growth and water-use efficiency.

KW - Silicon accumulation

KW - Rice genotype

KW - Drought

KW - Water-use efficiency

KW - Paddy rice

KW - Irrigation

KW - Shoot biomass

KW - Root biomass

U2 - 10.26182/326t-6z82

DO - 10.26182/326t-6z82

M3 - Doctoral Thesis

ER -

Silicon enhances drought resistance in rice (Oryza sativa L.)

Abstract

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