Effect of nitrogen levels and nitrogen ratios on lodging resistance and yield potential of winter wheat (Triticum aestivum L.)
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{"title"=>"Effect of nitrogen levels and nitrogen ratios on lodging resistance and yield potential of winter wheat (Triticum aestivum L.)", "type"=>"journal", "authors"=>[{"first_name"=>"Mingwei", "last_name"=>"Zhang", "scopus_author_id"=>"57191058417"}, {"first_name"=>"Hui", "last_name"=>"Wang", "scopus_author_id"=>"57196473813"}, {"first_name"=>"Yuan", "last_name"=>"Yi", "scopus_author_id"=>"57191051208"}, {"first_name"=>"Jinfeng", "last_name"=>"Ding", "scopus_author_id"=>"55463475200"}, {"first_name"=>"Min", "last_name"=>"Zhu", "scopus_author_id"=>"57196471883"}, {"first_name"=>"Chunyan", "last_name"=>"Li", "scopus_author_id"=>"37077544100"}, {"first_name"=>"Wenshan", "last_name"=>"Guo", "scopus_author_id"=>"56181064200"}, {"first_name"=>"Chaonian", "last_name"=>"Feng", "scopus_author_id"=>"56293638900"}, {"first_name"=>"Xinkai", "last_name"=>"Zhu", "scopus_author_id"=>"14026286500"}], "year"=>2017, "source"=>"PLoS ONE", "identifiers"=>{"pui"=>"619130405", "issn"=>"19326203", "isbn"=>"1111111111", "doi"=>"10.1371/journal.pone.0187543", "scopus"=>"2-s2.0-85033464449", "sgr"=>"85033464449"}, "id"=>"74bd0621-bdde-3cc3-b107-80d1ec791b18", "abstract"=>"Lodging is one of the constraints that limit wheat yields and quality\ndue to the unexpected bending or breaking stems on wheat (Triticum\naestivum L.) production worldwide. In addition to choosing lodging\nresistance varieties, husbandry practices also have a significant effect\non lodging. Nitrogen management is one of the most common and efficient\nmethods. A field experiment with Yangmai 20 as research material (a\nwidely-used variety) was conducted to study the effects of different\nnitrogen levels and ratios on culm morphological, anatomical characters\nand chemical components and to explore the nitrogen application\ntechniques for lodging tolerance and high yield. Results showed that\nsome index of basal internodes, such as stem wall thickness, filling\ndegree, lignin content, cellulose content, water-soluble carbohydrate\n(WSC) and WSC/N ratio, were positively and significantly correlated with\nculm lodging-resistant index (CLRI). As the increase of nitrogen level\nand basal nitrogen ratio, the basal internodes became slender and\nfragile with the thick stem wall, while filling degree, chemical\ncomponents and the strength of the stem decreased gradually, which\nsignificantly increased the lodging risk. The response of grain yield to\nnitrogen doses was quadratic and grain yield reached the highest at the\nnitrogen ratio of 50%:10%:20%:20% (the ratio of nitrogen amount\napplied before sowing, at tillering stage, jointing stage and booting\nstage respectively, abbreviated as 5:1:2:2). These results suggested\nthat for Yangmai 20, the planting density of 180x10(4)ha(-1), nitrogen\nlevel of 225 kg ha(-1), and the ratio of 5: 1: 2: 2 effectively\nincreased lodging resistance and grain yield. This combination of\nplanting density and nitrogen level and ratio could effectively relieve\nthe contradiction between high-yielding and anti-lodging.", "link"=>"http://www.mendeley.com/research/effect-nitrogen-levels-nitrogen-ratios-lodging-resistance-yield-potential-winter-wheat-triticum-aest-1", "reader_count"=>4, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>1, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>2}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>1, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>2}, "reader_count_by_subject_area"=>{"Unspecified"=>1, "Engineering"=>1, "Agricultural and Biological Sciences"=>2}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>2}, "Unspecified"=>{"Unspecified"=>1}}, "group_count"=>1}

Scopus | Further Information

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