Phosphorus Uptake And Use Efficiency Of Different Cotton Cultivars In Savannah Soil (acrisol)

Eficiência De Absorção E Utilização De Fósforo Por Cultivares De Algodão Em Um Solo De Cerrado (latossolo Vermelho Amarelo)

dc.creatorMarcante N.C.
dc.creatorMuroaka T.
dc.creatorBruno I.P.
dc.creatorCamacho M.A.
dc.date2016
dc.date2017-08-17T19:17:41Z
dc.date2017-08-17T19:17:41Z
dc.date.accessioned2018-03-29T05:27:17Z
dc.date.available2018-03-29T05:27:17Z
dc.identifierActa Scientiarum - Agronomy. Eduem - Editora Da Universidade Estadual De Maringa, v. 38, n. 2, p. 239 - 247, 2016.
dc.identifier1679-9275
dc.identifier10.4025/actasciagron.v38i2.26551
dc.identifierhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84963823323&doi=10.4025%2factasciagron.v38i2.26551&partnerID=40&md5=d7b338909c71368b0ee2b89cfbb8e2d2
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/324130
dc.identifier2-s2.0-84963823323
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1358293
dc.descriptionLow soil phosphorus (P) is a limiting factor for plant growth in the Brazilian savannah, where P diffuses slowly and has a high fixation rate in soil (as Al-P and Fe-P). In this study, we investigated the variation in P uptake by different cotton cultivars grown in savannah soil. We conducted a greenhouse experiment using a fully factorial 2 x 17 randomized design with two P treatments (low P = 20 mg kg-1 and high P = 120 mg kg-1) and 17 cotton cultivars. The plants were potted in Acrisol soil labeled with radioisotope 32P. There was genetic variation in the P use efficiency among the cotton cultivars. The P treatments significantly influenced the dry weight of shoots (DWS), P accumulation, the specific activity of 32P, and the L-value (both the standardized and L-values discounted the P present in the cottonseed). Hierarchical clustering analysis classified the cotton cultivars into distinct, internally homogeneous clusters. Our results suggest that cotton cultivars could be selected to maximize P absorption efficiency in conditions of low plant-available P. The cultivars FMT 523, FM 910 and CNPA GO 2043 were the most responsive to P fertilization, while Barbadense 01, FM 966LL, IPR Jataí, BRS Aroeira and BRS Buriti were most efficient at absorbing plant-available P. © 2016, Eduem - Editora da Universidade Estadual de Maringa. All rights reserved.
dc.description38
dc.description2
dc.description239
dc.description247
dc.languageEnglish
dc.publisherEduem - Editora da Universidade Estadual de Maringa
dc.relationActa Scientiarum - Agronomy
dc.rightsfechado
dc.sourceScopus
dc.subject32p Activity
dc.subjectBrazilian Cerrado
dc.subjectG. Barbadense
dc.subjectG. Hirsutum
dc.titlePhosphorus Uptake And Use Efficiency Of Different Cotton Cultivars In Savannah Soil (acrisol)
dc.titleEficiência De Absorção E Utilização De Fósforo Por Cultivares De Algodão Em Um Solo De Cerrado (latossolo Vermelho Amarelo)
dc.typeArtículos de revistas


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