BRS A705: an early-cycle, lodging-resistant irrigated rice cultivar with high yield

Magalhães Júnior, Ariano Martins de; Colombari-Filho, José Manoel; Fagundes, Paulo Ricardo Reis; Rangel, Paulo Hideo Nakano; Cardoso, Élbio Treicha; Breseghello, Flávio; Nunes, Cley Donizete; Castro, Adriano Pereira de; Andres, Andre; Cordeiro, Antonio Carlos Centeno; Brito, Giovani Greigh de; Pereira, José Almeida; Neves, Péricles de Carvalho Ferreira; Petrini, José Alberto; Martins, José Francisco da Silva; Theisen, Giovani; Fragoso, Daniel Brito; Abreu, Guilherme Barbosa

doi:10.1590/1984-70332023v23n2c17

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CULTIVAR RELEASE • Crop Breed. Appl. Biotechnol. 23 (2) • 2023 • https://doi.org/10.1590/1984-70332023v23n2c17 linkcopy

BRS A705: an early-cycle, lodging-resistant irrigated rice cultivar with high yield

Authorship SCIMAGO INSTITUTIONS RANKINGS

BRS A705 is an early-maturing cultivar developed by Embrapa, recommended for irrigated cultivation. The plants have high tillering and moderate resistance to the main diseases. This cultivar has short stature, which confers a greater tolerance to lodging. It presents high yield and long and fine grains of excellent quality.

Keywords:
Oryza sativa L.; genetic breeding; grain quality

Traits	Cultivar
Plants*	BRS A705	BRS Pampa CL
Plant type	modern	modern
Initial vigor	early	early
Cycle (days from emergence to 50% flowering)	89	87
Maturation	120	118
Plant height (cm)	85	95
Stem length (cm)	65	75
Panicle length (cm)	24	23
Panicle exsertion	average	average
Leaf color	green	green
Flag leaf angle	erect	erect
Panicle type	intermediate	intermediate
Hairiness	present	present
Degraining	intermediate	intermediate
Lodging	resistant	moderately resistant
Tillering	high	high
Indirect iron toxicity	moderately resistant	moderately resistant
Leaf blast	moderately resistant	moderately resistant
Panicle blast	moderately resistant	moderately resistant
Grain staining	moderately resistant	moderately resistant
Herbicide resistance	susceptible	resistant
Grains *
Class	long and thin	long and thin
Awn	absent	absent
Color of glumes	straw	straw
Color of the apiculus	white	white
Hairiness	present	present
Length with shell (mm)	9.61	9.80
Polished length (mm)	7.20	7.16
Width with shell	2.35	2.19
Polished width (mm)	2.17	2.00
Thickness with shell	2.04	1.95
Polished thickness(mm)	1.86	1.74
Polished length/width ratio (mm)	3.32	3.58
Thousand grain weight (g)	27.6	25.1
Total productivity (%)	70.5	68
Whole grains (%)	62.3	62
Amylose	high	high
Gelatinization temperature	low	low
Yield (t ha^-1)**	10	10.2

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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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[TFN1] * Susceptible to change depending on the characteristics of the environment in which it grows. ** Grains with husk and 13% moisture as observed in experiments conducted by Embrapa.