Avaliação de trocas gasosas e produção de genótipos de bananeira tipo maçã cultivados em região semiárida da Bahia

O objetivo deste estudo foi avaliar as trocas gasosas e a produção de bananeiras tipo Maçã, em diferentes épocas do ano e horários, em ambiente semiárido. Foram utilizados sete genótipos: Maçã, Caipira, BRS Tropical, BRS Princesa, YB42-03, YB42-17 e YB42-47, dispostos em delineamento experimental inteiramente casualizado, com cinco repetições e com quatro plantas úteis por parcela. Para as características fisiológicas, foi considerado um arranjo em esquema fatorial 7x7x2 (sete genótipos, sete épocas de avaliação, duas leituras diárias: às 8 e 14 horas). As taxas fotossintéticas, a eficiência de carboxilação e a eficiência instantânea do uso da água são maiores às 8 horas, devido às condições meteorológicas, enquanto a temperatura foliar e a transpiração são mais altas às 14 horas, decorrentes da elevação da temperatura do ar e da baixa umidade. Meses com maior radiação e temperatura intermediária proporcionaram maiores taxas de fotossíntese, maior eficiência de carboxilação e fotoquímica da fotossíntese. De forma geral, o genótipo YB42-47 foi o mais produtivo com maior eficiência de uso da água e taxas de fotossíntese.

Termos para indexação
Musa spp; clima; fisiologia; híbridos

Autoria

Alessandre Gabriel Oliveira Ramos

Master’s Degree Student in Plant Production in the Semi-Arid – Federal Institute Baiano - Câmpus Guanambi, Distrito de Ceraima, Guanambi – BA. Work derived from the dissertation of the first author presented to the Master’s Degree in Plant Production in the Semi-Arid. E-mail: alessandre.ramos@hotmail.com Instituto Federal BaianoBrasilGuanambi, BA, Brasil Master’s Degree Student in Plant Production in the Semi-Arid – Federal Institute Baiano - Câmpus Guanambi, Distrito de Ceraima, Guanambi – BA. Work derived from the dissertation of the first author presented to the Master’s Degree in Plant Production in the Semi-Arid. E-mail: alessandre.ramos@hotmail.com

Sérgio Luiz Rodrigues Donato

Agronomist, D.Sc., Professor - Federal Institute Baiano - Câmpus Guanambi, Distrito de Ceraima, Guanambi – BA, E-mail: sergio.donato@ifbaiano.edu.br, alessandro.arantes@ifbaiano.edu.br Instituto Federal BaianoBrasilGuanambi, BA, Brasil Agronomist, D.Sc., Professor - Federal Institute Baiano - Câmpus Guanambi, Distrito de Ceraima, Guanambi – BA, E-mail: sergio.donato@ifbaiano.edu.br, alessandro.arantes@ifbaiano.edu.br

Alessandro de Magalhães Arantes

Maurício Antônio Coelho Filho

Agronomist, D.Sc., Researcher - Embrapa Mandioca e Fruticultura, Rua Embrapa s/n, Cruz das Almas – BA, E-mail: mauricio-antonio.coelho@embrapa.br Embrapa Mandioca e FruticulturaBrasilCruz das Almas, BA, Brasil Agronomist, D.Sc., Researcher - Embrapa Mandioca e Fruticultura, Rua Embrapa s/n, Cruz das Almas – BA, E-mail: mauricio-antonio.coelho@embrapa.br

Maria Geralda Vilela Rodrigues

Agronomist, D.Sc., Researcher, Epamig North / FAPEMIG Scholarship research, Nova Porteirinha - MG, E-mail: magevr@epamig.br Epamig Norte de Minas GeraisBrasilNova Porteirinha, MG, Brasil Agronomist, D.Sc., Researcher, Epamig North / FAPEMIG Scholarship research, Nova Porteirinha - MG, E-mail: magevr@epamig.br

SCIMAGO INSTITUTIONS RANKINGS

Figuras | Tabelas

Figuras (3)
Tabelas (4)

Thumbnail

Figure 1
Averages of air relative humidity, maximum and minimum temperatures at the time of evaluations, from February to November 2011, Guanambi - BA.

Thumbnail

Figure 2
Vapor pressure deficit (VPD) determined at the time of physiological evaluations, from February to November 2011, Guanambi - BA.

Thumbnail

Figure 3
Rainfall (mm) from February to November 2011, Guanambi - BA.

Thumbnail

Table 1
Photosynthetic rate (A), transpiration rate (E), instantaneous water use efficiency (A/E), carboxylation efficiency (A/Ci), µmol CO2 m^-2s^-1/µmol CO2 mol^-1, photochemical efficiency of photosynthesis (A/Qleaf), µmol CO₂ m^-2 s^-1/µmol photons m^-2 s^-1 evaluated in the third leaf of Maçã banana type plants, between flowering of first and second cycle at different months and times of evaluations. Guanambi, BA, 2010-2011.

Thumbnail

Table 2
Photosynthetically active radiation on leaf surface (Qleaf), foliar temperature (Tleaf), internal concentration of CO₂ (Ci), and stomatal conductance (gs), evaluated in the third leaf of Maçã banana type, between flowering of first and second cycle of production, at different months and times of evaluations. Guanambi, BA, 2010-2011.

Thumbnail

Table 3
Photosynthesis rate (A), transpiration rate (E), instantaneous water use efficiency (A/E), ((µmol CO₂ m^-2 s^-1) ((mmol H₂O m^-2 s^-1)^-1), and foliar temperature (Tleaf) evaluated in the third leaf Maçã banana type genotypes, between flowering of first and second cycle of production. Guanambi, BA, 2010-2011.

Thumbnail

Table 4
Yield of genotypes of Maçã banana type between flowering of the first and the second production cycle. Guanambi, BA, 2010-2011.

Figure 1 Averages of air relative humidity, maximum and minimum temperatures at the time of evaluations, from February to November 2011, Guanambi - BA.

Figure 2 Vapor pressure deficit (VPD) determined at the time of physiological evaluations, from February to November 2011, Guanambi - BA.

Figure 3 Rainfall (mm) from February to November 2011, Guanambi - BA.

Table 1 Photosynthetic rate (A), transpiration rate (E), instantaneous water use efficiency (A/E), carboxylation efficiency (A/Ci), µmol CO2 m^-2s^-1/µmol CO2 mol^-1, photochemical efficiency of photosynthesis (A/Qleaf), µmol CO₂ m^-2 s^-1/µmol photons m^-2 s^-1 evaluated in the third leaf of Maçã banana type plants, between flowering of first and second cycle at different months and times of evaluations. Guanambi, BA, 2010-2011.

Months	A (μmol CO₂ m^-2s^-1)		E (mmol H₂O m^-2s^-1)		A/E		A/C_i		A/Q_leaf
Months	8:00 am	2:00 pm	8:00 am	2:00 pm	8:00 am	2:00 pm	8:00 am	2:00 pm	8:00 am	2:00 pm
Feb	15.51 Ca	11.64 Db	3.14 Cb	5.11 Da	5.00 Ba	2.29 Db	0.073 Ca	0.056 Cb	0.031 Ba	0.014 Cb
Mar	15.23 Ca	15.74 Ba	2.91 Cb	4.78 Da	5.20 Ba	3.36 Bb	0.067 Ca	0.071 Ba	0.030 Ba	0.027 Ca
Apr	15.12 Ca	13.72 Ca	2.27 Db	4.00 Da	6.81 Aa	3.97 Ab	0.070 Ca	0.060 Cb	0.016 Ba	0.021 Ca
Jul	24.05 Aa	19.19 Ab	4.51 Bb	7.65 Ba	5.39 Ba	2.57 Cb	0.110 Aa	0.090 Ab	0.021 Ba	0.015 Ca
Aug	24.00 Aa	18.03 Ab	4.78 Bb	9.04 Aa	5.05 Ba	2.03 Db	0.114 Aa	0.083 Ab	0.024 Bb	0.049 Ba
Sep	24.98 Aa	18.06 Ab	6.94 Ab	7.57 Ba	3.70 Ca	2.56 Cb	0.114 Aa	0.085 Ab	0.088 Aa	0.071 Aa
Nov	18.28 Ba	15.55 Bb	3.60 Cb	6.28 Ca	5.20 Ba	2.53 Cb	0.084 Ba	0.072 Bb	0.031 Ba	0.018 Ca
CV(%)	21.49		24.78		23.33		23.19		106.48

^*
Averages followed by uppercase letters, in the columns for months, belong to the same grouping by the Scott-Knott criterion at 5% probability; and lowercase letters in the lines do not differ significantly by F-test at 5% probability.

Table 2 Photosynthetically active radiation on leaf surface (Qleaf), foliar temperature (Tleaf), internal concentration of CO₂ (Ci), and stomatal conductance (gs), evaluated in the third leaf of Maçã banana type, between flowering of first and second cycle of production, at different months and times of evaluations. Guanambi, BA, 2010-2011.

Months	Q_leaf (μmol fótons m^-2 s^-1)		T_leaf (^oC)		C_i (µmol CO₂ mol^-1)		gs (mol H₂O m^-2s^-1)
Months	8:00 am	2:00 pm	8:00 am	2:00 pm	8:00 am	2:00 pm	8:00 am	2:00 pm
Feb	531.79 Cb	1,106.86 Ba	31.36 Cb	39.19 Aa	217.64 Ba	210.51 Bb	0.278 Ca	0.215 Cb
Mar	515.80 Ca	606.95 Da	31.88 Cb	35.68 Ca	232.53 Aa	225.60 Ab	0.354 Ca	0.421 Ab
Apr	1,600.23 Aa	858.56 Cb	34.57 Aa	35.01 Ca	216.40 Bb	231.58 Aa	0.298 Ca	0.337 Ba
Jul	1,444.73 Aa	1,479.26 Aa	29.59 Db	37.30 Ba	217.76 Ba	212.52 Ba	0.499 Ba	0.381 Ab
Aug	1,455.05 Aa	1,069.07 Bb	31.08 Cb	39.93 Aa	213.55 Ba	216.45 Ba	0.509 Ba	0.381 Ab
Sep	990.71 Ba	845.75 Cb	33.58 Bb	37.53 Ba	219.65 Ba	210.21 Bb	0.611 Aa	0.356Ab
Nov	655.68 Cb	915.23 Ca	31.49 Cb	39.05 Aa	218.54 Ba	216.64 Ba	0.327 Ca	0.309 Ba
CV (%)	38.97		4.98		6.66		35.04

^*
Averages followed by uppercase letters, in the columns for months, belong to the same grouping by the Scott-Knott criterion at 5% probability; and lowercase letters in the lines do not differ significantly by F-test at 5% probability.

Table 3 Photosynthesis rate (A), transpiration rate (E), instantaneous water use efficiency (A/E), ((µmol CO₂ m^-2 s^-1) ((mmol H₂O m^-2 s^-1)^-1), and foliar temperature (Tleaf) evaluated in the third leaf Maçã banana type genotypes, between flowering of first and second cycle of production. Guanambi, BA, 2010-2011.

Genotypes	A (μmol CO₂ m^-2s^-1)	E (mmol H₂O m^-2s^-1)	A/E	T_Leaf (^oC)
Caipira	18.77 A	5.56 A	3.92 B	34.77 B
YB42-17	17.92 A	5.48 A	3.76 B	35.34 A
BRS Tropical	17.80 A	5.65 A	3.66 B	35.43 A
YB42-03	17.20 B	4.82 B	4.16 A	34.58 B
BRS Princesa	16.63 B	4.83 B	3.98 A	34.75 B
Maçã	17.85 A	4.89 B	4.23 A	34.37 B
YB42-47	18.38 A	5.08 B	4.12 A	34.38 B
CV (%)	21.49	24.78	23.33	4.98

^*
Averages followed by same letters in the columns belong to the same group by the Scott-Knott criterion at 5% probability.

Table 4 Yield of genotypes of Maçã banana type between flowering of the first and the second production cycle. Guanambi, BA, 2010-2011.

Genotypes	Number of hands (unit)		Mass of hands (kg)		Yield of hands (Mg ha^-1)
Genotypes	1° cycle	2° cycle	1° cycle	2° cycle	1° cycle	2° cycle
Caipira	6.50 A	8.98 A	8.47 A	11.10 B	11.29 A	14.79 B
YB42-17	6.52 A	9.67 A	10.68 A	14.12 A	14.23 A	18.82 A
BRS Tropical	6.40 A	8.37 B	10.30 A	14.07 A	13.72 A	18.75 A
YB42-03	5.98 A	7.60 B	8.88 A	10.72 B	11.83 A	14.28 B
BRS Princesa	7.23 A	9.73 A	9.23 A	12.22 B	12.30 A	16.28 B
Maçã	7.35 A	8.08 B	11.53 A	12.07 B	15.36 A	16.08 B
YB42-47	6.40 A	8.13 B	10.50 A	11.20 B	13.99 A	14.92 B
CV (%)	17.56		15.98		9.08

^*
Averages followed by same letters in the columns belong to the same group by the Scott-Knott criterion at 5% probability.

Como citar

copiar

Sociedade Brasileira de Fruticultura Via de acesso Prof. Paulo Donato Castellane, s/n , 14884-900 Jaboticabal SP Brazil, Tel.: +55 16 3209-7188/3209-7609 - Jaboticabal - SP - Brazil
E-mail: rbf@fcav.unesp.br

Acompanhe os números deste periódico no seu leitor de RSS

Versão para download de PDF

PDF

Inglês

Versões e tradução automática

Versão original do texto

English

Tradução automática

Google Translator
Microsoft Translator

Como citar

RIS

BIBTEX

Outros formatos de citação e exportação:

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
E-mail: scielo@scielo.org

Leia a Declaração de Acesso Aberto

Métricas

Avaliação de trocas gasosas e produção de genótipos de bananeira tipo maçã cultivados em região semiárida da Bahia

PlumX

Mensagem

[TFN0101] ^*
Averages followed by uppercase letters, in the columns for months, belong to the same grouping by the Scott-Knott criterion at 5% probability; and lowercase letters in the lines do not differ significantly by F-test at 5% probability.