Phosphorus uptake and use efficiency of different cotton cultivars in savannah soil (Acrisol)
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidade Estadual de Maringá
2016
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| author | Nericlenes Chaves Marcante |
| author_facet | Nericlenes Chaves Marcante |
| contents | Phosphorus uptake and use efficiency of different cotton cultivars in savannah soil (Acrisol) Nericlenes Chaves Marcante Takashi Muroaka Isabeli Pereira Bruno Marcos Antonio Camacho Agrociencias hirsutum barbadense 32P activity Brazilian Cerrado Low 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 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303045400012 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.2 Vol.38 |
| format | Artículo científico |
| id | redalyc_303045400012 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Phosphorus uptake and use efficiency of different cotton cultivars in savannah soil (Acrisol) Nericlenes Chaves Marcante Agrociencias hirsutum barbadense 32P activity Brazilian Cerrado Phosphorus uptake and use efficiency of different cotton cultivars in savannah soil (Acrisol) Nericlenes Chaves Marcante Takashi Muroaka Isabeli Pereira Bruno Marcos Antonio Camacho Agrociencias hirsutum barbadense 32P activity Brazilian Cerrado Low 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 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303045400012 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.2 Vol.38 |
| title | Phosphorus uptake and use efficiency of different cotton cultivars in savannah soil (Acrisol) |
| topic | Agrociencias hirsutum barbadense 32P activity Brazilian Cerrado |
| url | https://www.redalyc.org/articulo.oa?id=303045400012 |