BRS A502: an upland rice cultivar for intensive sustainable cropping systems in the Brazilian Cerrado

Furtini, Isabela Volpi; Castro, Adriano Pereira de; Lacerda, Mábio Chrisley; Breseghello, Flávio; Utumi, Marley Marico; Silveira Filho, Austrelino; Pereira, José Almeida; Abreu, Guilherme Barbosa; Cordeiro, Antonio Carlos Centeno; Sousa, Nara Regina Gervini; Fragoso, Daniel de Brito; Moura Neto, Francisco Pereira; Colombari-Filho, José Manoel; Bassinello, Priscilla Zaczuk; Lobo, Valacia Lemes da Silva

doi:10.1590/1984-70332022v22n3c27

Isabela Volpi Furtini ^** Email: isabela.furtini@embrapa.br

Embrapa Arroz e Feijão, Rodovia GO-462, km 12, Zona Rural, 75375-000, Santo Antônio de Goiás, GO, Brazil

http://orcid.org/0000-0002-4932-9937

Adriano Pereira de Castro

Embrapa Arroz e Feijão, Rodovia GO-462, km 12, Zona Rural, 75375-000, Santo Antônio de Goiás, GO, Brazil

Mábio Chrisley Lacerda

Embrapa Arroz e Feijão, Rodovia GO-462, km 12, Zona Rural, 75375-000, Santo Antônio de Goiás, GO, Brazil

Flávio Breseghello

Embrapa Arroz e Feijão, Rodovia GO-462, km 12, Zona Rural, 75375-000, Santo Antônio de Goiás, GO, Brazil

Marley Marico Utumi

Embrapa Rondônia, Rodovia BR-364, km 5,5, Zona Rural, 76815-800, Porto Velho, RO, Brazil

Austrelino Silveira Filho

Embrapa Amazônia Oriental, Travessa Dr. Enéas Pinheiro, S/N, Marco, 66095-903, Belém, PA, Brazil

José Almeida Pereira

Embrapa Meio Norte, Avenida Duque de Caxias, 5650 - Buenos Aires, Teresina - PI, 64008-780, Brazil.

Guilherme Barbosa Abreu

Embrapa Cocais, Praça da República, 147, Diamante, 65020-500, São Luís, MA, Brazil

Antonio Carlos Centeno Cordeiro

Embrapa Roraima, Rodovia BR-174, km 8, 69301-970, Distrito Industrial, Boa Vista, RR, Brazil

Nara Regina Gervini Sousa

Empaer, Rua Generoso Marquês Leite, S/N, 78200-000, Jardim Celeste, Cáceres, MT, Brazil

Daniel de Brito Fragoso

Embrapa Pesca e Aquicultura, Prolonga mento da Avenida NS 10, cruzamento com a Avenida LO 18, sentido Norte, loteamento Água Fria, 77008-900, Palmas, TO, Brazil.

Francisco Pereira Moura Neto

Embrapa Arroz e Feijão, Rodovia GO-462, km 12, Zona Rural, 75375-000, Santo Antônio de Goiás, GO, Brazil

José Manoel Colombari-Filho

Embrapa Arroz e Feijão, Rodovia GO-462, km 12, Zona Rural, 75375-000, Santo Antônio de Goiás, GO, Brazil

Priscilla Zaczuk Bassinello

Embrapa Arroz e Feijão, Rodovia GO-462, km 12, Zona Rural, 75375-000, Santo Antônio de Goiás, GO, Brazil

Valacia Lemes da Silva Lobo

Embrapa Arroz e Feijão, Rodovia GO-462, km 12, Zona Rural, 75375-000, Santo Antônio de Goiás, GO, Brazil

* Email: isabela.furtini@embrapa.br

Figures (3)
Tables (3)

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Figure 1
Lodging resistance of cultivars BRS A502 and BRS A501 CL with/without nitrogen input (180 kg ha^-1) or fungicide (Tricyclazole). Scores varied between 1 (absence of lodging) to 9 (100% of lodged plants at harvesting). Three applications of fungicides were carried out: (i) at full tillering coinciding with the second topdressing nitrogen fertilization; (ii) at panicle emission; and (iii) seven days after the emergence of panicles. Field trials were performed at Embrapa Rice and Beans, Santo Antônio de Goiás, GO, Brazil, during the 2017/2018 cultivation cycle using a randomized complete block design with four replicates.

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Figure 2
Head rice yield as a function of grain moisture at harvesting for the upland rice cultivars BRS A502, BRS Esmeralda and AN Cambará. Tests were performed at Embrapa Rice and Beans, Santo Antônio de Goiás, GO, Brazil, during the 2017/2018 cultivation cycle using a randomized complete block design with four replicates and five harvest dates with 7-day intervals.

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Figure 3
Hardness (() and stickiness (() of polished cooked grains of five rice cultivars evaluated using a texture analyzer. Uppercase letters for hardness and lowercase letters for stickiness indicate significant differences according to the Tukey’s test at 5% probability (n =3).

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Table 1
Agronomic and morphological traits of the upland rice cultivar BRS A502 according to the distinctness, uniformity and stability (DUS) tests performed during the 2014/2015 and 2015/2016 cultivation cycles

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Table 2
Agronomic characteristics of BRS A502 and check cultivars according to the value for cultivation and use (VCU) trials¹ performed during the 2012/2013 and 2013/2014 seasons

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Table 3
Incidence/severity of disease and grain quality traits of BRS A502 and control cultivars, as evaluated during the 2012/2013 and 2013/2014 seasons

Descriptor	Phenotype
Flag leaf angle	Erect
Leaf blade pubescence	Absent
Leaf auricle color	Light green
Leaf ligule color	Colorless to green
Culm length	Short (66 cm)
Panicle length	Short (22 cm)
Presence of awns	Absent/very short
Spikelet stigma color	Purple
Spikelet glume color	Pale yellow/Golden
Spikelet apiculus color (at ripening)	Black
Length of hulled grains	Long (7 mm)
Mass of a thousand grains	25.6 to 27.0 g

Characteristic	BRS A502	BRS Esmeralda	AN Cambará	Overall mean (n = 35)	Coefficient of variation (%)
Grain yield (kg ha^-1)	4025	3901	3773	3922	17.8
Flowering time (days)	76	76	76	78	4.7
Plant height (cm)	101	106^**	106^**	107	6.3

Characteristics	BRS A502	BRS Esmeralda	AN Cambará
Disease incidence/severity¹
Leaf blast (Magnaporthe oryzae)	2.0	2.1	2.5
Panicle blast (Magnaporthe oryzae)	2.8	2.5	3.4
Mean VNB scores²	2.2	2.7	2.9
Maximum VNB scores²	6	9	8
Leaf scald (Monographella albescens)	2.5	2.4	2,9
Brown spot (Bipolaris oryzae)	3.6	2.8	2,9
Grain discoloration (several fungi)	2.1	1.9	2.1
Grain quality
Length of grain (mm)	6.44	6.53	6.35
Width of grain (mm)	1.93	1.88	1.88
Length/width ratio	3.34	3.47	3.38
Chalky grains (%)	2.95	5.15	2.40

[1] * Email: isabela.furtini@embrapa.br

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BRS A502: an upland rice cultivar for intensive sustainable cropping systems in the Brazilian Cerrado

Abstract