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Estimating root length density by the core-break method

By: Bland, W.L.
Material type: materialTypeLabelArticlePublisher: 1989ISSN: 0361-5995.Subject(s): America | Anatomy | Biological development | Cereals | Crops | Dicotyledons | Economic plants | Environment | Fibre crops | Glumiflorae | Gossypium | Grain crops | Gramineae | Industrial crops | Malvaceae | Malvales | Methods | Monocotyledons | North America | Oil crops | Physiological functions | Plant anatomy | Plants | Site factors | Soil chemistry and physics | Soil types | Soils | Sorghum | South central states USA | Storage organs | USA | Triticum | Wheat AGROVOCDDC classification: 90-073174 In: Soil Science Society of America Journal v. 53, no. 5, p. 1595-159790-073174Summary: Rapid and accurate methods of measuring root length density (RLD, cm root cm-3 soil) are needed for verifying growth predictions and assessing genotypic differences. The core-break technique, in which the number of roots visible at a broken cross section of a soil core is used to estimate rooting, was evaluated as a means of measuring RLD. Root systems of wheat, Triticum aestivum L., cotton, Gossypium hirsutum L., and sorghum, Sorghum bicolor (L.) Moench, were sampled and core-break root counts regressed on RLD measured in the same soil core. Linear relationships were obtained between counts and RLD for each crop on each day of sampling. Calibration equations wereCollection: AGRIS Collection
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Item type Current location Collection Call number Copy number Status Date due Barcode Item holds
Article CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

AGRIS Collection 90-073174 (Browse shelf) 1 Available 90-073174
Total holds: 0

Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0361-5995

Rapid and accurate methods of measuring root length density (RLD, cm root cm-3 soil) are needed for verifying growth predictions and assessing genotypic differences. The core-break technique, in which the number of roots visible at a broken cross section of a soil core is used to estimate rooting, was evaluated as a means of measuring RLD. Root systems of wheat, Triticum aestivum L., cotton, Gossypium hirsutum L., and sorghum, Sorghum bicolor (L.) Moench, were sampled and core-break root counts regressed on RLD measured in the same soil core. Linear relationships were obtained between counts and RLD for each crop on each day of sampling. Calibration equations were

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