Differential response of cowpea lines to aluminum and phosphorus application

cg.authorship.typesCGIAR single centreen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.coverage.countryNigeria
cg.coverage.iso3166-alpha2NG
cg.coverage.regionAfrica
cg.coverage.regionWestern Africa
cg.identifier.doihttps://doi.org/10.1080/01904160009382055en
cg.isijournalISI Journalen
cg.issn0190-4167en
cg.issn1532-4087en
cg.issue6en
cg.journalJournal of Plant Nutritionen
cg.reviewStatusPeer Reviewen
cg.subject.iitaFOOD SECURITYen
cg.subject.iitaCOWPEAen
cg.subject.iitaGRAIN LEGUMESen
cg.subject.iitaSOIL FERTILITYen
cg.subject.iitaPLANT PRODUCTIONen
cg.volume23en
dc.contributor.authorKolawole, G.O.en
dc.contributor.authorTian, G.en
dc.contributor.authorSingh, B.en
dc.date.accessioned2019-03-03T05:53:48Zen
dc.date.available2019-03-03T05:53:48Zen
dc.identifier.urihttps://hdl.handle.net/10568/99876
dc.titleDifferential response of cowpea lines to aluminum and phosphorus applicationen
dcterms.abstractTwo pot experiments were conducted, one to evaluate the levels of tolerance of fifteen cowpea [Vigna unguiculata (L.) Walp] lines to aluminum (Al) application, and the second to determine the effect of phosphorus (P) addition on the performance of Al‐tolerant lines (IT 91K‐93–10, IT 93K‐2046–1, and IT 90K‐2 77–2) and Al‐sensitive lines (IT 86D‐719, IT 90K‐284–2, and IT 89KD‐349) in an Alfisol with Al amendment. Fourteen of the fifteen lines tested showed decreased root biomass (between 19 to 81% reduction) with Al addition, but this effect was significant for eight of them. Fewer lines showed decreased shoot biomass and grain yield with Al application. Despite little change in nodule number following Al application, there was a significant decrease in nodule weight (between 24 and 53% reduction) for nearly all lines. Phosphorus fertilization increased shoot and root biomass, grain yield, nodule number, and weight, and nitrogen (N) and P content of nearly all lines. Al‐tolerant lines showed higher response in shoot and root biomass and nodulation to P fertilization than Al‐sensitive lines, with the highest response from IT 90K‐277–2. Increase in shoot dry weight as a result of P fertilization was from 64 to 107% for Al‐tolerant lines and from 44 to 48% for the Al‐sensitive lines, and increase in root dry weight was from 46 to 86% for the Al‐tolerant lines and from 7 to 42% for the Al‐sensitive lines. Results of these trials indicated that lines IT 91K‐93–10, IT 93K‐2046–1, and IT 90K‐277–2 have potential for good performance in soil with Al toxicity problems, and that cowpea lines with inherent genetic tolerance to Al will give higher response to P fertilization when grown in soil with Al toxicity problems.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationKolawole, G., Tian, G. & Singh, B. (2000). Differential response of cowpea lines to aluminum and phosphorus application. Journal of Plant Nutrition, 23, 731-740.en
dcterms.extentp. 731-740en
dcterms.issued2000-06
dcterms.languageen
dcterms.publisherInforma UK Limiteden
dcterms.subjectcowpeasen
dcterms.subjectgrainen
dcterms.subjectfertilizationen
dcterms.subjectyieldsen
dcterms.typeJournal Article

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