Interaction between contrasting rice genotypes and soil physical conditions induced by hydraulic stresses typical of alternate wetting and drying irrigation of soil

Huan Fang, Hu Zhou, Gareth J Norton, Adam H Price, Annette C Raffan, Sacha J. Mooney, Xinhua Peng, Paul D Hallett

Research output: Contribution to journalArticle

2 Citations (Scopus)
8 Downloads (Pure)

Abstract

Background and aims: Alternate wetting and drying (AWD) saves water in paddy rice production but could influence soil physical conditions and root growth. This study investigated the interaction between contrasting rice genotypes, soil structure and mechanical impedance influenced by hydraulic stresses typical of AWD.
Methods: Contrasting rice genotypes, IR64 and deeper-rooting Black Gora were grown in various soil conditions for 2 weeks. For the AWD treatments the soil was either maintained in a puddled state, equilibrated to −5 kPa (WET), or dried to −50 kPa and then rewetted at the water potential of −5 kPa (DRY-WET). There was an additional manipulated macropore structure treatment, i.e. the soil was broken into aggregates, packed into cores and equilibrated to −5 kPa (REPACKED). A flooded treatment (puddled soil remained flooded until harvest) was set as a control (FLOODED). Soil bulk density, penetration resistance and X-ray Computed Tomography (CT) derived macropore structure were measured. Total root length, root surface area, root volume, average diameter, and tip number were determined by WinRhizo.
Original languageEnglish
Pages (from-to)233-243
Number of pages11
JournalPlant and Soil
Volume430
Issue number1-2
Early online date29 Jun 2018
DOIs
Publication statusPublished - Sep 2018

Fingerprint

soil physical properties
soil treatment
wetting
fluid mechanics
genotype
rice
macropores
drying
irrigation
hydraulics
macropore
soil
resistance to penetration
impedance
computed tomography
soil structure
flooded soil
water potential
bulk density
rooting

Keywords

  • Rice roots
  • Genotype
  • Macropores
  • Mechanical impedance
  • Soil structure
  • X-ray CT

Cite this

Interaction between contrasting rice genotypes and soil physical conditions induced by hydraulic stresses typical of alternate wetting and drying irrigation of soil. / Fang, Huan; Zhou, Hu; Norton, Gareth J; Price, Adam H; Raffan, Annette C; Mooney, Sacha J.; Peng, Xinhua; Hallett, Paul D.

In: Plant and Soil, Vol. 430, No. 1-2, 09.2018, p. 233-243.

Research output: Contribution to journalArticle

@article{382d2cc2febd41a49b0528c821483766,
title = "Interaction between contrasting rice genotypes and soil physical conditions induced by hydraulic stresses typical of alternate wetting and drying irrigation of soil",
abstract = "Background and aims: Alternate wetting and drying (AWD) saves water in paddy rice production but could influence soil physical conditions and root growth. This study investigated the interaction between contrasting rice genotypes, soil structure and mechanical impedance influenced by hydraulic stresses typical of AWD.Methods: Contrasting rice genotypes, IR64 and deeper-rooting Black Gora were grown in various soil conditions for 2 weeks. For the AWD treatments the soil was either maintained in a puddled state, equilibrated to −5 kPa (WET), or dried to −50 kPa and then rewetted at the water potential of −5 kPa (DRY-WET). There was an additional manipulated macropore structure treatment, i.e. the soil was broken into aggregates, packed into cores and equilibrated to −5 kPa (REPACKED). A flooded treatment (puddled soil remained flooded until harvest) was set as a control (FLOODED). Soil bulk density, penetration resistance and X-ray Computed Tomography (CT) derived macropore structure were measured. Total root length, root surface area, root volume, average diameter, and tip number were determined by WinRhizo.",
keywords = "Rice roots, Genotype, Macropores, Mechanical impedance, Soil structure, X-ray CT",
author = "Huan Fang and Hu Zhou and Norton, {Gareth J} and Price, {Adam H} and Raffan, {Annette C} and Mooney, {Sacha J.} and Xinhua Peng and Hallett, {Paul D}",
note = "National Natural Science Foundation of China 41571130053 National Natural Science Foundation of China 41371235 Natural Environment Research Council NE/N007611/1 Biotechnology and Biological Sciences Research Council BB/N013201/1",
year = "2018",
month = "9",
doi = "10.1007/s11104-018-3715-5",
language = "English",
volume = "430",
pages = "233--243",
journal = "Plant and Soil",
issn = "0032-079X",
publisher = "Springer Netherlands",
number = "1-2",

}

TY - JOUR

T1 - Interaction between contrasting rice genotypes and soil physical conditions induced by hydraulic stresses typical of alternate wetting and drying irrigation of soil

AU - Fang, Huan

AU - Zhou, Hu

AU - Norton, Gareth J

AU - Price, Adam H

AU - Raffan, Annette C

AU - Mooney, Sacha J.

AU - Peng, Xinhua

AU - Hallett, Paul D

N1 - National Natural Science Foundation of China 41571130053 National Natural Science Foundation of China 41371235 Natural Environment Research Council NE/N007611/1 Biotechnology and Biological Sciences Research Council BB/N013201/1

PY - 2018/9

Y1 - 2018/9

N2 - Background and aims: Alternate wetting and drying (AWD) saves water in paddy rice production but could influence soil physical conditions and root growth. This study investigated the interaction between contrasting rice genotypes, soil structure and mechanical impedance influenced by hydraulic stresses typical of AWD.Methods: Contrasting rice genotypes, IR64 and deeper-rooting Black Gora were grown in various soil conditions for 2 weeks. For the AWD treatments the soil was either maintained in a puddled state, equilibrated to −5 kPa (WET), or dried to −50 kPa and then rewetted at the water potential of −5 kPa (DRY-WET). There was an additional manipulated macropore structure treatment, i.e. the soil was broken into aggregates, packed into cores and equilibrated to −5 kPa (REPACKED). A flooded treatment (puddled soil remained flooded until harvest) was set as a control (FLOODED). Soil bulk density, penetration resistance and X-ray Computed Tomography (CT) derived macropore structure were measured. Total root length, root surface area, root volume, average diameter, and tip number were determined by WinRhizo.

AB - Background and aims: Alternate wetting and drying (AWD) saves water in paddy rice production but could influence soil physical conditions and root growth. This study investigated the interaction between contrasting rice genotypes, soil structure and mechanical impedance influenced by hydraulic stresses typical of AWD.Methods: Contrasting rice genotypes, IR64 and deeper-rooting Black Gora were grown in various soil conditions for 2 weeks. For the AWD treatments the soil was either maintained in a puddled state, equilibrated to −5 kPa (WET), or dried to −50 kPa and then rewetted at the water potential of −5 kPa (DRY-WET). There was an additional manipulated macropore structure treatment, i.e. the soil was broken into aggregates, packed into cores and equilibrated to −5 kPa (REPACKED). A flooded treatment (puddled soil remained flooded until harvest) was set as a control (FLOODED). Soil bulk density, penetration resistance and X-ray Computed Tomography (CT) derived macropore structure were measured. Total root length, root surface area, root volume, average diameter, and tip number were determined by WinRhizo.

KW - Rice roots

KW - Genotype

KW - Macropores

KW - Mechanical impedance

KW - Soil structure

KW - X-ray CT

U2 - 10.1007/s11104-018-3715-5

DO - 10.1007/s11104-018-3715-5

M3 - Article

VL - 430

SP - 233

EP - 243

JO - Plant and Soil

JF - Plant and Soil

SN - 0032-079X

IS - 1-2

ER -