Early vertical distribution of roots and its association with drought tolerance in tropical maize
BACKGROUND AND AIMS: Selection for deep roots to improve drought tolerance of maize (Zea mays L.) requires presence of genetic variation and suitable screening methods. METHODS: We examined a diverse set of 33 tropical maize inbred lines that were grown in growth columns in the greenhouse up to the...
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| Veröffentlicht in: | Plant and soil 2014-04, Vol.377 (1-2), p.295-308 |
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| description | BACKGROUND AND AIMS: Selection for deep roots to improve drought tolerance of maize (Zea mays L.) requires presence of genetic variation and suitable screening methods. METHODS: We examined a diverse set of 33 tropical maize inbred lines that were grown in growth columns in the greenhouse up to the 2-, 4-, and 6-leaf stage and in the field in Mexico. To determine length of roots from different depths at high throughput, we tested an approach based on staining roots with methylene blue and measuring the amount of absorbed dye as proxy measure for root length. RESULTS: Staining provided no advantage over root weights that are much easier to measure and therefore preferable. We found significant genotypic variation for all traits at the 6-leaf stage. For development rates between the 2-leaf and the 6-leaf stage, genotypes only differed for rooting depth and the number of crown roots. Positive correlations of leaf area with root length and rooting depth indicated a common effect of plant vigor. However, leaf area in growth columns was negatively related to grain yield under drought (r = −0.50). CONCLUSION: The selection for deeper roots by an increase in plant vigor likely results in a poorer performance under drought conditions. The proportion of deep roots was independent of other traits but showed a low heritability and was not correlated to field performance. An improved screening protocol is proposed to increase throughput and heritability for this trait. |
| doi_str_mv | 10.1007/s11104-013-1997-1 |
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METHODS: We examined a diverse set of 33 tropical maize inbred lines that were grown in growth columns in the greenhouse up to the 2-, 4-, and 6-leaf stage and in the field in Mexico. To determine length of roots from different depths at high throughput, we tested an approach based on staining roots with methylene blue and measuring the amount of absorbed dye as proxy measure for root length. RESULTS: Staining provided no advantage over root weights that are much easier to measure and therefore preferable. We found significant genotypic variation for all traits at the 6-leaf stage. For development rates between the 2-leaf and the 6-leaf stage, genotypes only differed for rooting depth and the number of crown roots. Positive correlations of leaf area with root length and rooting depth indicated a common effect of plant vigor. However, leaf area in growth columns was negatively related to grain yield under drought (r = −0.50). CONCLUSION: The selection for deeper roots by an increase in plant vigor likely results in a poorer performance under drought conditions. The proportion of deep roots was independent of other traits but showed a low heritability and was not correlated to field performance. An improved screening protocol is proposed to increase throughput and heritability for this trait.</description><identifier>ISSN: 0032-079X</identifier><identifier>EISSN: 1573-5036</identifier><identifier>DOI: 10.1007/s11104-013-1997-1</identifier><identifier>CODEN: PLSOA2</identifier><language>eng</language><publisher>Cham: Springer-Verlag</publisher><subject>Abiotic stress ; Agricultural research ; Agronomy. Soil science and plant productions ; Animal, plant and microbial ecology ; Biological and medical sciences ; Biomedical and Life Sciences ; Corn ; Drought ; Drought resistance ; drought tolerance ; Droughts ; Ecology ; Fundamental and applied biological sciences. Psychology ; General agronomy. Plant production ; Genetic diversity ; genetic variation ; genotype ; Genotype & phenotype ; Genotypes ; grain yield ; greenhouses ; Health aspects ; heritability ; inbred lines ; Inbred strains ; leaf area ; Leaves ; Life Sciences ; methylene blue ; Mexico ; Phenotypic traits ; Plant growth ; Plant Physiology ; Plant roots ; Plant Sciences ; Plant-soil relationships ; Plants ; Regular Article ; Root systems ; Rooting depth ; Roots ; Slope stability ; Soil depth ; Soil Science & Conservation ; Soil-plant relationships. Soil fertility ; Soil-plant relationships. Soil fertility. Fertilization. Amendments ; Vertical distribution ; vigor ; Zea mays</subject><ispartof>Plant and soil, 2014-04, Vol.377 (1-2), p.295-308</ispartof><rights>Springer Science+Business Media Dordrecht 2013</rights><rights>2015 INIST-CNRS</rights><rights>COPYRIGHT 2014 Springer</rights><rights>Springer International Publishing Switzerland 2014</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c507t-32ef9ac8ccd58775f47540bc0ea2d4fdb21d9be4f6c2b6144ed2bb493b1977f43</citedby><cites>FETCH-LOGICAL-c507t-32ef9ac8ccd58775f47540bc0ea2d4fdb21d9be4f6c2b6144ed2bb493b1977f43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/44244624$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/44244624$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27901,27902,41464,42533,51294,57992,58225</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28607299$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Grieder, C</creatorcontrib><creatorcontrib>Trachsel, S</creatorcontrib><creatorcontrib>Hund, A</creatorcontrib><title>Early vertical distribution of roots and its association with drought tolerance in tropical maize</title><title>Plant and soil</title><addtitle>Plant Soil</addtitle><description>BACKGROUND AND AIMS: Selection for deep roots to improve drought tolerance of maize (Zea mays L.) requires presence of genetic variation and suitable screening methods. METHODS: We examined a diverse set of 33 tropical maize inbred lines that were grown in growth columns in the greenhouse up to the 2-, 4-, and 6-leaf stage and in the field in Mexico. To determine length of roots from different depths at high throughput, we tested an approach based on staining roots with methylene blue and measuring the amount of absorbed dye as proxy measure for root length. RESULTS: Staining provided no advantage over root weights that are much easier to measure and therefore preferable. We found significant genotypic variation for all traits at the 6-leaf stage. For development rates between the 2-leaf and the 6-leaf stage, genotypes only differed for rooting depth and the number of crown roots. Positive correlations of leaf area with root length and rooting depth indicated a common effect of plant vigor. However, leaf area in growth columns was negatively related to grain yield under drought (r = −0.50). CONCLUSION: The selection for deeper roots by an increase in plant vigor likely results in a poorer performance under drought conditions. The proportion of deep roots was independent of other traits but showed a low heritability and was not correlated to field performance. An improved screening protocol is proposed to increase throughput and heritability for this trait.</description><subject>Abiotic stress</subject><subject>Agricultural research</subject><subject>Agronomy. Soil science and plant productions</subject><subject>Animal, plant and microbial ecology</subject><subject>Biological and medical sciences</subject><subject>Biomedical and Life Sciences</subject><subject>Corn</subject><subject>Drought</subject><subject>Drought resistance</subject><subject>drought tolerance</subject><subject>Droughts</subject><subject>Ecology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General agronomy. Plant production</subject><subject>Genetic diversity</subject><subject>genetic variation</subject><subject>genotype</subject><subject>Genotype & phenotype</subject><subject>Genotypes</subject><subject>grain yield</subject><subject>greenhouses</subject><subject>Health aspects</subject><subject>heritability</subject><subject>inbred lines</subject><subject>Inbred strains</subject><subject>leaf area</subject><subject>Leaves</subject><subject>Life Sciences</subject><subject>methylene blue</subject><subject>Mexico</subject><subject>Phenotypic traits</subject><subject>Plant growth</subject><subject>Plant Physiology</subject><subject>Plant roots</subject><subject>Plant Sciences</subject><subject>Plant-soil relationships</subject><subject>Plants</subject><subject>Regular Article</subject><subject>Root systems</subject><subject>Rooting depth</subject><subject>Roots</subject><subject>Slope stability</subject><subject>Soil depth</subject><subject>Soil Science & Conservation</subject><subject>Soil-plant relationships. Soil fertility</subject><subject>Soil-plant relationships. Soil fertility. Fertilization. Amendments</subject><subject>Vertical distribution</subject><subject>vigor</subject><subject>Zea mays</subject><issn>0032-079X</issn><issn>1573-5036</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp9Uk1rFTEUHUTBZ_UHuBADInQz9d58TF6WpdQqFFxowV3IZJLXPOZNnklGqb_eTKcUcSFZXJJ7zsnJPWma1whnCCA_ZEQE3gKyFpWSLT5pNigkawWw7mmzAWC0Bam-P29e5LyHZY_dpjGXJo135KdLJVgzkiHkkkI_lxAnEj1JMZZMzDSQsNScow3mvvkrlFsypDjvbgspcXTJTNaRMJGS4vFe7GDCb_eyeebNmN2rh3rS3Hy8_Hbxqb3-cvX54vy6tQJkaRl1Xhm7tXYQWymF51Jw6C04Qwfuh57ioHrHfWdp3yHnbqB9zxXrUUnpOTtpTlfdY4o_ZpeLPoRs3TiaycU5axTYSUHrsyv03T_QfZzTVN0tKGASBaMVdbaidmZ0Okw-lmRsXYM7BBsn50M9P2eSUgFcLQRcCTbFnJPz-pjCwaQ7jaCXlPSakq4p6SUlvVh5_2DF5Doyvwwx5Eci3XYgqVIVR1dcrq1p59Jflv8j_mYl7XOJ6VGUc8p5R5eRvV373kRtdqlefPOVAvL6PbaCcWB_ACK2tOw</recordid><startdate>20140401</startdate><enddate>20140401</enddate><creator>Grieder, C</creator><creator>Trachsel, S</creator><creator>Hund, A</creator><general>Springer-Verlag</general><general>Springer</general><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7SN</scope><scope>7ST</scope><scope>7T7</scope><scope>7X2</scope><scope>88A</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>LK8</scope><scope>M0K</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>RC3</scope><scope>SOI</scope></search><sort><creationdate>20140401</creationdate><title>Early vertical distribution of roots and its association with drought tolerance in tropical maize</title><author>Grieder, C ; Trachsel, S ; Hund, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c507t-32ef9ac8ccd58775f47540bc0ea2d4fdb21d9be4f6c2b6144ed2bb493b1977f43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Abiotic stress</topic><topic>Agricultural research</topic><topic>Agronomy. Soil science and plant productions</topic><topic>Animal, plant and microbial ecology</topic><topic>Biological and medical sciences</topic><topic>Biomedical and Life Sciences</topic><topic>Corn</topic><topic>Drought</topic><topic>Drought resistance</topic><topic>drought tolerance</topic><topic>Droughts</topic><topic>Ecology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General agronomy. Plant production</topic><topic>Genetic diversity</topic><topic>genetic variation</topic><topic>genotype</topic><topic>Genotype & phenotype</topic><topic>Genotypes</topic><topic>grain yield</topic><topic>greenhouses</topic><topic>Health aspects</topic><topic>heritability</topic><topic>inbred lines</topic><topic>Inbred strains</topic><topic>leaf area</topic><topic>Leaves</topic><topic>Life Sciences</topic><topic>methylene blue</topic><topic>Mexico</topic><topic>Phenotypic traits</topic><topic>Plant growth</topic><topic>Plant Physiology</topic><topic>Plant roots</topic><topic>Plant Sciences</topic><topic>Plant-soil relationships</topic><topic>Plants</topic><topic>Regular Article</topic><topic>Root systems</topic><topic>Rooting depth</topic><topic>Roots</topic><topic>Slope stability</topic><topic>Soil depth</topic><topic>Soil Science & Conservation</topic><topic>Soil-plant relationships. Soil fertility</topic><topic>Soil-plant relationships. Soil fertility. Fertilization. Amendments</topic><topic>Vertical distribution</topic><topic>vigor</topic><topic>Zea mays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Grieder, C</creatorcontrib><creatorcontrib>Trachsel, S</creatorcontrib><creatorcontrib>Hund, A</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Ecology Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Agricultural Science Collection</collection><collection>Biology Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Agricultural Science Database</collection><collection>Biological Science Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Genetics Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Plant and soil</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Grieder, C</au><au>Trachsel, S</au><au>Hund, A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Early vertical distribution of roots and its association with drought tolerance in tropical maize</atitle><jtitle>Plant and soil</jtitle><stitle>Plant Soil</stitle><date>2014-04-01</date><risdate>2014</risdate><volume>377</volume><issue>1-2</issue><spage>295</spage><epage>308</epage><pages>295-308</pages><issn>0032-079X</issn><eissn>1573-5036</eissn><coden>PLSOA2</coden><abstract>BACKGROUND AND AIMS: Selection for deep roots to improve drought tolerance of maize (Zea mays L.) requires presence of genetic variation and suitable screening methods. METHODS: We examined a diverse set of 33 tropical maize inbred lines that were grown in growth columns in the greenhouse up to the 2-, 4-, and 6-leaf stage and in the field in Mexico. To determine length of roots from different depths at high throughput, we tested an approach based on staining roots with methylene blue and measuring the amount of absorbed dye as proxy measure for root length. RESULTS: Staining provided no advantage over root weights that are much easier to measure and therefore preferable. We found significant genotypic variation for all traits at the 6-leaf stage. For development rates between the 2-leaf and the 6-leaf stage, genotypes only differed for rooting depth and the number of crown roots. Positive correlations of leaf area with root length and rooting depth indicated a common effect of plant vigor. However, leaf area in growth columns was negatively related to grain yield under drought (r = −0.50). CONCLUSION: The selection for deeper roots by an increase in plant vigor likely results in a poorer performance under drought conditions. The proportion of deep roots was independent of other traits but showed a low heritability and was not correlated to field performance. An improved screening protocol is proposed to increase throughput and heritability for this trait.</abstract><cop>Cham</cop><pub>Springer-Verlag</pub><doi>10.1007/s11104-013-1997-1</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Abiotic stress Agricultural research Agronomy. Soil science and plant productions Animal, plant and microbial ecology Biological and medical sciences Biomedical and Life Sciences Corn Drought Drought resistance drought tolerance Droughts Ecology Fundamental and applied biological sciences. Psychology General agronomy. Plant production Genetic diversity genetic variation genotype Genotype & phenotype Genotypes grain yield greenhouses Health aspects heritability inbred lines Inbred strains leaf area Leaves Life Sciences methylene blue Mexico Phenotypic traits Plant growth Plant Physiology Plant roots Plant Sciences Plant-soil relationships Plants Regular Article Root systems Rooting depth Roots Slope stability Soil depth Soil Science & Conservation Soil-plant relationships. Soil fertility Soil-plant relationships. Soil fertility. Fertilization. Amendments Vertical distribution vigor Zea mays |
| title | Early vertical distribution of roots and its association with drought tolerance in tropical maize |
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