Responses of nitre goosefoot (Chenopodium nitrariaceum) to simulated rainfall and depth and duration of experimental flooding

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Abstract

Nitre goosefoot (Chenopodium nitrariaceum (F.Muell.) is a woody shrub that occurs at the edges of floodplains and other intermittently flooded areas across the Murray-Darling Basin. No studies have been conducted on the hydrological requirements of nitre goosefoot, and the species is not considered in watering requirements of floodplain species of the Murray-Darling Basin. This study investigated the effects of simulated rainfall and depth and duration of experimental flooding on mortality, leaf production, biomass and seed production of nitre goosefoot. Nitre goosefoot plants were grown from seeds collected near Hillston, New South Wales, Australia. The plants were subjected to the following 14 hydrological treatments: dry (no water applied), rainfall (simulating rainfall conditions at Hillston) and 12 combinations of three water depths (10 cm, 50 cm, 75 cm) with four durations of inundation (5 days, 10 days, 20 days, 40 days). The study found that nitre goosefoot plants survived flooding, providing plants were not totally submerged, leaf production increased during flooding and after drawdown, and leaf production, biomass and seeding were highest under shallow flooding for approximately 1 month. The results of the study allow the hydrological requirements of nitre goosefoot to be considered in environmental watering programs.

Original languageEnglish
Pages (from-to)493-503
Number of pages11
JournalMarine and Freshwater Research
Volume70
Issue number4
Early online date13 Nov 2018
DOIs
Publication statusPublished - 2019

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Chenopodium
rainfall simulation
flooding
rainfall
duration
floodplains
floodplain
biomass production
seed productivity
irrigation
basins
rain
leaves
drawdown
biomass
seed production
seeding
basin
New South Wales
water depth

Cite this

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title = "Responses of nitre goosefoot (Chenopodium nitrariaceum) to simulated rainfall and depth and duration of experimental flooding",
abstract = "Nitre goosefoot (Chenopodium nitrariaceum (F.Muell.) is a woody shrub that occurs at the edges of floodplains and other intermittently flooded areas across the Murray-Darling Basin. No studies have been conducted on the hydrological requirements of nitre goosefoot, and the species is not considered in watering requirements of floodplain species of the Murray-Darling Basin. This study investigated the effects of simulated rainfall and depth and duration of experimental flooding on mortality, leaf production, biomass and seed production of nitre goosefoot. Nitre goosefoot plants were grown from seeds collected near Hillston, New South Wales, Australia. The plants were subjected to the following 14 hydrological treatments: dry (no water applied), rainfall (simulating rainfall conditions at Hillston) and 12 combinations of three water depths (10 cm, 50 cm, 75 cm) with four durations of inundation (5 days, 10 days, 20 days, 40 days). The study found that nitre goosefoot plants survived flooding, providing plants were not totally submerged, leaf production increased during flooding and after drawdown, and leaf production, biomass and seeding were highest under shallow flooding for approximately 1 month. The results of the study allow the hydrological requirements of nitre goosefoot to be considered in environmental watering programs.",
keywords = "adaptation, biomass, environmental flow, floodplain, inundation, stress",
author = "William Higgisson and Sue Briggs and Fiona Dyer",
year = "2019",
doi = "10.1071/MF18161",
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pages = "493--503",
journal = "Marine Freshwater Research",
issn = "0067-1940",
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TY - JOUR

T1 - Responses of nitre goosefoot (Chenopodium nitrariaceum) to simulated rainfall and depth and duration of experimental flooding

AU - Higgisson, William

AU - Briggs, Sue

AU - Dyer, Fiona

PY - 2019

Y1 - 2019

N2 - Nitre goosefoot (Chenopodium nitrariaceum (F.Muell.) is a woody shrub that occurs at the edges of floodplains and other intermittently flooded areas across the Murray-Darling Basin. No studies have been conducted on the hydrological requirements of nitre goosefoot, and the species is not considered in watering requirements of floodplain species of the Murray-Darling Basin. This study investigated the effects of simulated rainfall and depth and duration of experimental flooding on mortality, leaf production, biomass and seed production of nitre goosefoot. Nitre goosefoot plants were grown from seeds collected near Hillston, New South Wales, Australia. The plants were subjected to the following 14 hydrological treatments: dry (no water applied), rainfall (simulating rainfall conditions at Hillston) and 12 combinations of three water depths (10 cm, 50 cm, 75 cm) with four durations of inundation (5 days, 10 days, 20 days, 40 days). The study found that nitre goosefoot plants survived flooding, providing plants were not totally submerged, leaf production increased during flooding and after drawdown, and leaf production, biomass and seeding were highest under shallow flooding for approximately 1 month. The results of the study allow the hydrological requirements of nitre goosefoot to be considered in environmental watering programs.

AB - Nitre goosefoot (Chenopodium nitrariaceum (F.Muell.) is a woody shrub that occurs at the edges of floodplains and other intermittently flooded areas across the Murray-Darling Basin. No studies have been conducted on the hydrological requirements of nitre goosefoot, and the species is not considered in watering requirements of floodplain species of the Murray-Darling Basin. This study investigated the effects of simulated rainfall and depth and duration of experimental flooding on mortality, leaf production, biomass and seed production of nitre goosefoot. Nitre goosefoot plants were grown from seeds collected near Hillston, New South Wales, Australia. The plants were subjected to the following 14 hydrological treatments: dry (no water applied), rainfall (simulating rainfall conditions at Hillston) and 12 combinations of three water depths (10 cm, 50 cm, 75 cm) with four durations of inundation (5 days, 10 days, 20 days, 40 days). The study found that nitre goosefoot plants survived flooding, providing plants were not totally submerged, leaf production increased during flooding and after drawdown, and leaf production, biomass and seeding were highest under shallow flooding for approximately 1 month. The results of the study allow the hydrological requirements of nitre goosefoot to be considered in environmental watering programs.

KW - adaptation

KW - biomass

KW - environmental flow

KW - floodplain

KW - inundation

KW - stress

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