RB975952 - Early maturing sugarcane cultivar

RB975952 is an early maturing sugarcane cultivar released for the South-Central region of Brazil. It should be harvested between April and May, and it is recommended for planting in environments with medium to high production potential. RB975952 has high resistance levels to the main diseases of the crop, it also has a good shoot development after mechanical harvesting, and high sucrose yields.

Saccharum spp; selection; improvement

Authorship

Monalisa Sampaio Carneiro ^**E-mail: monalisa@cca.ufscar.br

Universidade Federal de São Carlos, Departamento de Biotecnologia e Produção Vegetal e Animal, Laboratório de Biotecnologia de Plantas, Araras, São Paulo, 13.600-970, BrazilUniversidade Federal de São CarlosBrazilAraras, São Paulo, BrazilUniversidade Federal de São Carlos, Departamento de Biotecnologia e Produção Vegetal e Animal, Laboratório de Biotecnologia de Plantas, Araras, São Paulo, 13.600-970, Brazil

Roberto Giacomini Chapola

Antônio Ribeiro Fernandes Júnior

Danilo Eduardo Cursi

Fernanda Zatti Barreto

Thiago Willian Almeida Balsalobre

Hermann Paulo Hoffmann

*E-mail: monalisa@cca.ufscar.br

SCIMAGO INSTITUTIONS RANKINGS

Figures | Tables

Figures (5)
Tables (1)

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Figure 1
Pedigree of RB975952 sugarcane cultivar.

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Figure 2
Maturation curve of RB975952 cultivar, compared to RB855156 and RB855453 standard commercial cultivars, for sucrose content (%) in cane.

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Figure 3
Adaptability and stability of RB975952 cultivar, compared to RB855453 standard commercial cultivar. The average data of sugar yield (TCH) in 17 field trials in first ratoon cane cycle were adjusted based on regression analysis.

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Figure 4
Isoquants of average data of sucrose content (PC%), and cane yield (TCH) in 13 field trials and three cycles in different production environments. The diagram shows RB975952 cultivar (black circle) for comparison with standard commercial cultivars (gray circles) and clones.

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Figure 5
Dendrogram of nine sugarcane cultivars revealed by UPGMA cluster analysis of SSR genetic similarity (Simple Matching's coefficient) estimates, using 360 SSR polymorphic bands obtained by 27 primer combinations.

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Table 1
Disease reactions and presence (+) or absence (-) of the Bru1 gene in RB975952 and RB855453 sugarcane cultivars, in South-Central of Brazil

Figure 1 Pedigree of RB975952 sugarcane cultivar.

Figure 2 Maturation curve of RB975952 cultivar, compared to RB855156 and RB855453 standard commercial cultivars, for sucrose content (%) in cane.

Figure 3 Adaptability and stability of RB975952 cultivar, compared to RB855453 standard commercial cultivar. The average data of sugar yield (TCH) in 17 field trials in first ratoon cane cycle were adjusted based on regression analysis.

Figure 4 Isoquants of average data of sucrose content (PC%), and cane yield (TCH) in 13 field trials and three cycles in different production environments. The diagram shows RB975952 cultivar (black circle) for comparison with standard commercial cultivars (gray circles) and clones.

Figure 5 Dendrogram of nine sugarcane cultivars revealed by UPGMA cluster analysis of SSR genetic similarity (Simple Matching's coefficient) estimates, using 360 SSR polymorphic bands obtained by 27 primer combinations.

Table 1 Disease reactions and presence (+) or absence (-) of the Bru1 gene in RB975952 and RB855453 sugarcane cultivars, in South-Central of Brazil

R= resistant + = presence of Bru1 molecular marker

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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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RB975952 - Early maturing sugarcane cultivar

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[1] *E-mail: monalisa@cca.ufscar.br