Phosphorus use efficiency in pima cotton (Gossypium barbadense L.) genotypes

In the Brazilian Cerrado, P deficiency restricts cotton production, which requires large amounts of phosphate fertilizer. To improve the yield of cotton crops, genotypes with high P use efficiency must be identified and used. The present study evaluated P uptake and use efficiency of different Gossy...

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Autores principales:	Santos,Elcio, Marcante,Nericlenes, Muraoka,Takashi, Camacho,Marcos
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2015
Materias:	Nutritional efficiency phosphorus supply pima cotton
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000200010
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spelling	oai:scielo:S0718-583920150002000102018-10-01Phosphorus use efficiency in pima cotton (Gossypium barbadense L.) genotypesSantos,ElcioMarcante,NericlenesMuraoka,TakashiCamacho,Marcos Nutritional efficiency phosphorus supply pima cotton In the Brazilian Cerrado, P deficiency restricts cotton production, which requires large amounts of phosphate fertilizer. To improve the yield of cotton crops, genotypes with high P use efficiency must be identified and used. The present study evaluated P uptake and use efficiency of different Gossypium barbadense L. genotypes grown in the Cerrado. The experiment was carried out in a greenhouse with a completely randomized design, 15 x 2 factorial treatment structure (15 genotypes x 2 P levels), and four replicates. The genotypes were MT 69, MT 70, MT 87, MT 91, MT 92, MT 94, MT 101, MT 102, MT 103, MT 105, MT 106, MT 110, MT 112, MT 124, and MT 125; P levels were sufficient (1000 mg pot-1, PS treatment) or deficient (PD treatment). Dry matter (DM) and P levels were determined in cotton plant parts and used to calculate plant P content and use efficiency. In general, DM and P content were higher in the PS than in the PD treatment, with the exception of root DM and total DM in some genotypes. Genotypes also differed in terms of P uptake and use capacity. In the PS treatment, genotypes MT 92 and MT 102 had the highest response to phosphate fertilization. Genotype MT 69 exhibited the most efficient P uptake in the PD treatment. Genotype MT 124 showed the best shoot physiological efficiency, apparent recovery efficiency, and utilization efficiency, whereas MT 110 exhibited the highest root physiological efficiency.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.75 n.2 20152015-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000200010en10.4067/S0718-58392015000200010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Nutritional efficiency phosphorus supply pima cotton
spellingShingle	Nutritional efficiency phosphorus supply pima cotton Santos,Elcio Marcante,Nericlenes Muraoka,Takashi Camacho,Marcos Phosphorus use efficiency in pima cotton (Gossypium barbadense L.) genotypes
description	In the Brazilian Cerrado, P deficiency restricts cotton production, which requires large amounts of phosphate fertilizer. To improve the yield of cotton crops, genotypes with high P use efficiency must be identified and used. The present study evaluated P uptake and use efficiency of different Gossypium barbadense L. genotypes grown in the Cerrado. The experiment was carried out in a greenhouse with a completely randomized design, 15 x 2 factorial treatment structure (15 genotypes x 2 P levels), and four replicates. The genotypes were MT 69, MT 70, MT 87, MT 91, MT 92, MT 94, MT 101, MT 102, MT 103, MT 105, MT 106, MT 110, MT 112, MT 124, and MT 125; P levels were sufficient (1000 mg pot-1, PS treatment) or deficient (PD treatment). Dry matter (DM) and P levels were determined in cotton plant parts and used to calculate plant P content and use efficiency. In general, DM and P content were higher in the PS than in the PD treatment, with the exception of root DM and total DM in some genotypes. Genotypes also differed in terms of P uptake and use capacity. In the PS treatment, genotypes MT 92 and MT 102 had the highest response to phosphate fertilization. Genotype MT 69 exhibited the most efficient P uptake in the PD treatment. Genotype MT 124 showed the best shoot physiological efficiency, apparent recovery efficiency, and utilization efficiency, whereas MT 110 exhibited the highest root physiological efficiency.
author	Santos,Elcio Marcante,Nericlenes Muraoka,Takashi Camacho,Marcos
author_facet	Santos,Elcio Marcante,Nericlenes Muraoka,Takashi Camacho,Marcos
author_sort	Santos,Elcio
title	Phosphorus use efficiency in pima cotton (Gossypium barbadense L.) genotypes
title_short	Phosphorus use efficiency in pima cotton (Gossypium barbadense L.) genotypes
title_full	Phosphorus use efficiency in pima cotton (Gossypium barbadense L.) genotypes
title_fullStr	Phosphorus use efficiency in pima cotton (Gossypium barbadense L.) genotypes
title_full_unstemmed	Phosphorus use efficiency in pima cotton (Gossypium barbadense L.) genotypes
title_sort	phosphorus use efficiency in pima cotton (gossypium barbadense l.) genotypes
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000200010
work_keys_str_mv	AT santoselcio phosphorususeefficiencyinpimacottongossypiumbarbadenselgenotypes AT marcantenericlenes phosphorususeefficiencyinpimacottongossypiumbarbadenselgenotypes AT muraokatakashi phosphorususeefficiencyinpimacottongossypiumbarbadenselgenotypes AT camachomarcos phosphorususeefficiencyinpimacottongossypiumbarbadenselgenotypes
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Phosphorus use efficiency in pima cotton (Gossypium barbadense L.) genotypes

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