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dc.contributorWatanabe, Takeshien_US
dc.contributorRamu, Karrien_US
dc.contributorSahrawat, Kanwar Lalen_US
dc.contributorMarimuthu, Subramanianen_US
dc.contributorWani, Suhasen_US
dc.contributorIto, Osamuen_US
dc.creatorUchino, Hiroshien_US
dc.date2013-11-30en_US
dc.date.accessioned2017-01-05T19:40:59Z
dc.date.available2017-01-05T19:40:59Z
dc.identifierhttps://mel.cgiar.org/reporting/download/hash/onY4htUjen_US
dc.identifier.citationHiroshi Uchino, Takeshi Watanabe, Karri Ramu, Kanwar Lal Sahrawat, Subramanian Marimuthu, Suhas Wani, Osamu Ito. (30/11/2013). CALIBRATING CHLOROPHYLL METER (SPAD-502) READING BY SPECIFIC LEAF AREA FOR ESTIMATING LEAF NITROGEN CONCENTRATION IN SWEET SORGHUM. Journal of Plant Nutrition, 36, pp. 1640-1646.en_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/5218
dc.description.abstractThe chlorophyll meter (SPAD-502) is used to estimate nitrogen status of various crops. However, the relationship between SPAD readings and leaf nitrogen concentration (LNC) in sweet sorghum (Sorghum bicolor) has not been fully established. We examined the relationship between SPAD readings and LNC in sweet sorghum in a two-year study; and the effects of leaf thickness on the relationship was also examined. There was a significant relationship between the SPAD reading and LNC at each of two growth stages, but the correlation was weaker when the data for the two growth stages were pooled. This correlation improved when the specific leaf area was introduced as a second independent variable in the multiple regression analysis. This regression equation was applicable to not only different growth stages but also different seasons. The results suggest that the regression equation developed in this study can help in optimizing nitrogen fertilization for sweet sorghum production.en_US
dc.formatPDFen_US
dc.languageenen_US
dc.publisherTaylor & Francis (Routledge)en_US
dc.rightsCC-BY-NC-4.0en_US
dc.sourceJournal of Plant Nutrition;36,(2013) Pagination 1640,1646en_US
dc.subjectchlorophyll meteren_US
dc.subjectleaf nitrogen concentrationen_US
dc.subjectspecific leaf areaen_US
dc.titleCALIBRATING CHLOROPHYLL METER (SPAD-502) READING BY SPECIFIC LEAF AREA FOR ESTIMATING LEAF NITROGEN CONCENTRATION IN SWEET SORGHUMen_US
dc.typeJournal Articleen_US
cg.subject.agrovoccropsen_US
cg.subject.agrovocsweet sorghumen_US
cg.contributor.centerInternational Crops Research Institute for the Semi-Arid Tropics - ICRISATen_US
cg.contributor.centerTamil Nadu Agricultural University - TNAUen_US
cg.contributor.centerUnited Nations University, Institute for the Advanced Study of Sustainability - UNU-IASen_US
cg.contributor.crpCRP on Dryland Systems - DSen_US
cg.contributor.funderNot Applicableen_US
cg.coverage.regionSouthern Asiaen_US
cg.coverage.countryINen_US
cg.identifier.doihttps://dx.doi.org/10.1080/01904167.2013.799190en_US
dc.identifier.statusOpen accessen_US
mel.impact-factor1.816en_US


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