An Instrument for Estimating the Total Length of Root in a Sample

Rowse, H. R.; Phillips, Debbie

doi:10.2307/2402023

Cited by 100 publications

(46 citation statements)

References 11 publications

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“…Roots were washed from the pots over a 0.5 mm screen. Root length was determined with a modified infrared root line intersection counter as described by Rowse & Phillips (1974). The root mass was measured by weighing after drying at 60°C for 72 hours.…”

Section: Methodsmentioning

confidence: 99%

Wheat(Triticum aestivumL.) growth and yield response to saline irrigation water under controlled conditions

Dikgwatlhe

Ceronio

Rensburg

2008

South African Journal of Plant and Soil

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Serious agronomic problems occur where saline water is used for irrigation. The effect of irrigation water salinity on wheat was investigated using electrical conductivity (EC i , mS m -1 ) as a salinity indicator. A pot experiment was conducted at the University of the Free State during 2003 and 2004 to determine the effect of the different irrigation water EC i levels on the growth and yield of wheat (cv. SST 806) in a sandy loam soil. The pot experiment was laid out as a complete randomised design with five EC i levels viz. 15(control), 150, 300, 450, 600 mS m -1 , replicated three times and conducted over two seasons. The effects were tested at three growth stages viz. tillering, flag leaf and maturity. Various morphological indicators were used to quantify the effect of saline irrigation water on the below ground growth of wheat, viz. root mass and root length. For above ground growth, plant height and leaf area index were recorded. All indicators were expressed on a relative basis and showed a decrease in growth with an increase in the EC i of the irrigation water used. At EC i levels of 300 and 600 mS m -1 seed yield were reduced by 18 and 36%, respectively.

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Section: Methodsmentioning

confidence: 99%

Wheat(Triticum aestivumL.) growth and yield response to saline irrigation water under controlled conditions

Dikgwatlhe

Ceronio

Rensburg

2008

South African Journal of Plant and Soil

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“…The seminal and nodal roots were separated and their number and individual lengths noted, together with the distance from the tip to the first visible lateral. The total root system was then displayed on a glass plate and its length determined by a modification (Drew et ah, 1973) of the method described by Rowse and Phillips (1974). The dry weight of the roots was then determined.…”

Section: Measurement Of Rootsmentioning

confidence: 99%

The Effect of Mechanical Forces on the Exudation of Organic Substances by the Roots of Cereal Plants Grown Under Sterile Conditions

1974

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“…The soil mass was soaked in 5 % sodium hexametaphosphate solution overnight and washed over a sieve size 0.5 mm diameter to retrieve the roots. Root length was determined by the line intersect method (Newman 1966) as modified by Rowse and Phillips (1974). Five cores were extracted at randomly selected positions within the plot.…”

Section: Root Length Densitymentioning

confidence: 99%

Soil properties and subsoil constraints of urban and peri-urban agriculture within Mahikeng city in the North West Province (South Africa)

Materechera

2016

J Soils Sediments

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Purpose Urban and peri-urban agriculture is becoming increasingly important as a source of income and food for the urban population in South Africa. While most studies on urban agriculture have focused their attention on surface soils, there is dearth of information regarding subsoil properties. This study examined properties of subsoil horizons that may impede root growth and productivity of crops under urban agriculture. Materials and methods The properties of topsoil (0-20 cm) and subsoil horizons (20-40 cm) of four profiles from plots within the city of Mahikeng (25°48′ S and 25°38′ E) were examined to determine the nature of subsoil constraints that can limit root growth and crop productivity. The plots were selected in an area extending through four residential suburbs of the city, and two plots with a long history of cultivation were purposely selected from each suburb to represent the main cropping systems and soil types. Soil physical (penetrometer resistance, bulk density, hydraulic conductivity), chemical (pH, exchangeable Ca, Mg, K, Na, phosphorus and boron) and biological (root growth, organic carbon, microbial biomass, enzyme activity) properties were measured in the profiles. Results and discussion Even though there was a large variability between profiles, the results revealed high bulk density (mean 2.06 Mg m −3

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An Instrument for Estimating the Total Length of Root in a Sample

Cited by 100 publications

References 11 publications

Wheat(Triticum aestivumL.) growth and yield response to saline irrigation water under controlled conditions

Wheat(Triticum aestivumL.) growth and yield response to saline irrigation water under controlled conditions

The Effect of Mechanical Forces on the Exudation of Organic Substances by the Roots of Cereal Plants Grown Under Sterile Conditions

Soil properties and subsoil constraints of urban and peri-urban agriculture within Mahikeng city in the North West Province (South Africa)

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