BRS 369RF and BRS 370RF: Glyphosate tolerant, high-yielding upland cotton cultivars for central Brazilian savanna

BRS 369RF and BRS 370RF were developed by the EMBRAPA as a part of efforts to create high-yielding germplasm with combinations of transgenic traits. BRS 369RF and BRS 370RF are midseason cultivars and have yield stability, adaptation to the central Brazilian savanna, good fiber quality and tolerance to glyphosate herbicide.

Key words:
Gossypium hirsutum; glyphosate tolerance; second crop season; linter yield

Authorship

Camilo de Lelis Morello

Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil. Embrapa AlgodãoBrazilCampina Grande, PB, Brazil Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil.

Nelson Dias Suassuna ^**E-mail: nelson.suassuna@embrapa.br

Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil. Embrapa AlgodãoBrazilCampina Grande, PB, Brazil Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil.

Paulo Augusto Vianna Barroso

Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil. Embrapa AlgodãoBrazilCampina Grande, PB, Brazil Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil.

João Luís da Silva Filho

Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil. Embrapa AlgodãoBrazilCampina Grande, PB, Brazil Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil.

Alexandre Cunha de Barcellos Ferreira

Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil. Embrapa AlgodãoBrazilCampina Grande, PB, Brazil Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil.

Fernando Mendes Lamas

Embrapa Agropecuária Oeste, CP 661, 79.804-970, Dourados, MS, BrazilEmbrapa Agropecuária OesteBrazilDourados, MS, Brazil Embrapa Agropecuária Oeste, CP 661, 79.804-970, Dourados, MS, Brazil

Murilo Barros Pedrosa

Fundação Bahia, BR 020/242 km 50,7, 47.850-000, Luís Eduardo Magalhães, BA, Brazil Fundação BahiaBrazilLuís Eduardo Magalhães, BA, Brazil Fundação Bahia, BR 020/242 km 50,7, 47.850-000, Luís Eduardo Magalhães, BA, Brazil

Luiz Gonzaga Chitarra

Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil. Embrapa AlgodãoBrazilCampina Grande, PB, Brazil Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil.

José Lopes Ribeiro

Embrapa Meio-Norte, Av. Duque de Caxias, 5650, 64.006-220, Teresina, PI, BrazilEmbrapa Meio-NorteBrazilTeresina, PI, Brazil Embrapa Meio-Norte, Av. Duque de Caxias, 5650, 64.006-220, Teresina, PI, Brazil

Vicente de Paulo Campos Godinho

Embrapa Rondônia, BR 364 km 5,5, CP 406, 76.815-800, Porto Velho, RO, BrazilEmbrapa RondôniaBrazilPorto Velho, RO, Brazil Embrapa Rondônia, BR 364 km 5,5, CP 406, 76.815-800, Porto Velho, RO, Brazil

Marcelo Abreu Lanza

Epamig/FEGT, Rua Afonso Ratos, 1301, CP 311, 38.001-970, Uberaba, MG, BrazilEpamig/FEGTBrazilUberaba, MG, BrazilEpamig/FEGT, Rua Afonso Ratos, 1301, CP 311, 38.001-970, Uberaba, MG, Brazil

*E-mail: nelson.suassuna@embrapa.br

SCIMAGO INSTITUTIONS RANKINGS

Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil. Embrapa AlgodãoBrazilCampina Grande, PB, Brazil Embrapa Algodão, CP 147, 58.428-095, Campina Grande, PB, Brazil.

Embrapa Agropecuária Oeste, CP 661, 79.804-970, Dourados, MS, BrazilEmbrapa Agropecuária OesteBrazilDourados, MS, Brazil Embrapa Agropecuária Oeste, CP 661, 79.804-970, Dourados, MS, Brazil

Epamig/FEGT, Rua Afonso Ratos, 1301, CP 311, 38.001-970, Uberaba, MG, BrazilEpamig/FEGTBrazilUberaba, MG, BrazilEpamig/FEGT, Rua Afonso Ratos, 1301, CP 311, 38.001-970, Uberaba, MG, Brazil

Tables

Tables (3)

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Table 1
Means of total cottonseed yield (CY), lint percentage (LP), and lint yield (LY) of the cotton cultivars BRS 369RF and BRS 293 (control), in 15 field performance trials

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Table 2
Means of total cottonseed yield (CY), lint percentage (LP), and lint yield (LY) of the cotton cultivars BRS 370RF and BRS 293 (control), in 15 field performance trials

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Table 3
Cultivar traits of BRS 269RF, BRS 270RF and BRS 293 (control)

Table 1 Means of total cottonseed yield (CY), lint percentage (LP), and lint yield (LY) of the cotton cultivars BRS 369RF and BRS 293 (control), in 15 field performance trials

* Coefficient of variation (%) for cottonseed yield (kg ha^-1); † Sown in January

Table 2 Means of total cottonseed yield (CY), lint percentage (LP), and lint yield (LY) of the cotton cultivars BRS 370RF and BRS 293 (control), in 15 field performance trials

* Coefficient of variation (%) for cottonseed yield (kg ha^-1); † Sown in January

Table 3 Cultivar traits of BRS 269RF, BRS 270RF and BRS 293 (control)

^* Data recorded in Santa Helena de Goiás - GO (lat 17º 48' 15'' S, long 50º 35' 43'' W, alt 562m asl).^a Means from 15 field trials in 2010/2011 and 2011/2012 seasons, in several environments (States of Goiás, Bahia, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Maranhão, Piaui, and Rondônia); ^b Incidence (%) of plants with cotton blue disease symptoms - data from two assays with no control of virus vector (Aphis gossypii); ^c Disease severity (grades from 1 = resistant to 5 = highly susceptible) - data from two assays with no fungicide application; ^dAmaral disease index calculated (Amaral 1969Amaral E (1969) Novo índice de intensidade de infecção. Pesquisa Agropecuária Brasileira 4: 1-2.) - data from two assays artificially inoculated with Colletotrichum gossypii var. cephalosporioides using methods proposed by Oliveira et al. (2010Oliveira MAC, Duarte JB, Morello CL, Suassuna ND and Oliveira AB (2010) Inheritance of resistance to Colletotrichum gossypii var. cephalosporioides in cotton. Crop Breeding and Applied Biotechnology10: 65-73.); ^e Galling index (Zhang et al. 2006Zhang J, Waddell C, Sengupta-gopalan C, Potenza C and Cantrell RG (2006) Relationships between root-knot nematode resistance and plant growth in Upland cotton: Galling index as a criterion. Crop Science 46: 1581-1586.); ^f Disease index (Machado et al. 2009Machado LP, Michereff SJ, Falleiro BAS, Oliveira MG, Coutinho WM, Morello CL and Suassuna ND (2009) Um método simples e rápido de seleção para resistência à murcha-de-fusário em genótipos de algodoeiro. Tropical Plant Pathology 34: 051-055); ^g Cotton cultivar IAC 25 was used as a resistant/partial resistant control

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Crop Breeding and Applied Biotechnology Universidade Federal de Viçosa, Departamento de Fitotecnia, 36570-000 Viçosa - Minas Gerais/Brasil, Tel.: (55 31)3899-2611, Fax: (55 31)3899-2611 - Viçosa - MG - Brazil
E-mail: cbab@ufv.br

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BRS 369RF and BRS 370RF: Glyphosate tolerant, high-yielding upland cotton cultivars for central Brazilian savanna

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[1] *E-mail: nelson.suassuna@embrapa.br