BRS Boitatá and BRS Ocauçu cassava cultivars for the industry have high root and starch yields and high starch contents in first-cycle and second-cycle harvests, medium tolerance to the main diseases, adequate architecture for mechanized planting and stability in starch contents.
Keywords:
Genetic breeding; Manihot esculenta Crantz; dry matter; starch yield; starch
| Genotype | Disease index* | ARC | ||
|---|---|---|---|---|
| BB | SE | ANT | ||
| BRS Ocauçu | 0.40 | 0.30 | 0.30 | 1.0 |
| BRS Boitatá | 0.43 | 0.20 | 0.20 | 1.0 |
| IPR Baianinha | 0.30 | 0.23 | 0.23 | 1.7 |
| Cascuda | 0.47 | 0.23 | 0.23 | 1.0 |
| Fécula Branca | 0.43 | 0.27 | 0.27 | 1.0 |
| IAC 90 | 0.40 | 0.47 | 0.47 | 1.0 |
| Clones | Dourados 2012/13 (10 MAP) | Dourados 2013/14 (10 MAP) | Naviraí 2014/15 (10 MAP) | Paranavaí 2014/15 (10 MAP) | Paranavaí 2017/2018 (11 MAP) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RY | SC | SY | RY | SC | SY | RY | SC | SY | RY | SC | SY | RY | SC | SY | |
| BRS Ocauçu | 27.82a | 33.95a | 9.49a | 41.59a | 31.64a | 13.29a | 50.80a | 33.49b | 16.88a | 20.54a | 34.20a | 7.09a | 30.31a | 37.31a | 11.32a |
| BRS Boitatá | 25.56a | 33.35a | 8.52a | 37.15a | 32.84a | 12.24a | 54.92a | 35.18a | 19.33a | 26.46a | 35.82a | 9.51a | 35.78a | 34.51b | 12.37a |
| BRS CS-01 | - | - | - | - | - | - | - | - | - | - | - | - | 35.36a | 37.56a | 13.28a |
| IPR Baianinha | 24.28a | 29.26c | 7.14a | 25.84b | 32.01a | 8.28c | 25.27b | 31.54b | 7.84b | 10.38a | 30.48a | 3.20a | - | - | - |
| Sup. Ocauçu (%)1 | - | 11.05 | - | 32.48 | - | 32.09 | 50.26 | - | 53.55 | - | - | - | - | - | - |
| Sup. Boitatá (%) | - | 9.45 | - | 24.41 | - | 26.27 | 53.99 | 10.35 | 59.44 | - | - | - | - | - | - |
| CV (%) | 17.43 | 3.41 | 18.48 | 19.42 | 4.95 | 21.01 | 20.23 | 4.9 | 20.24 | 41.11 | 6.37 | 43.63 | 14.92 | 1.89 | 14.5 |
| Clones | Ocauçu 2015/16 (11 MAP) | Marília 2016/17 (12 MAP) | Campos Novos Paulista 2017/18 (8 MAP) | Campos Novos Paulista 2017/18 (12 MAP) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RY | SC | SY | RY | SC | SY | RY | SC | SY | RY | SC | SY | |
| BRS Ocauçu | 52.67 a | 31.30 a | 16.70 a | 42.80 b | 33.90 b | 14.50 b | 34.21 a | 33.97 a | 11.63 a | 29.90 a | 33.69 b | 10.09 a |
| BRS Boitatá | 59.10 a | 31.57 a | 18.60 a | 55.57 a | 34.73 a | 19.27 a | 23.90 b | 33.13 a | 7.92 b | 30.93 a | 34.13 b | 10.57 a |
| IAC 14 | 20.93 a | 31.63 a | 6.60 a | 32.93 b | 30.53 c | 10.07 c | 31.97 a | 33.56 a | 10.66 a | 26.23 b | 34.94 a | 9.19 b |
| Sup. Ocauçu (%)1 | - | - | - | - | 9.94 | 30.55 | - | - | - | 12.27 | -3.71 | 8.92 |
| Sup. Boitatá (%) | - | - | - | 40.74 | 12.09 | 47.74 | -33.77 | - | -34.60 | 15.20 | -2.37 | 13.06 |
| CV (%) | 43.07 | 1.83 | 43.34 | 17.99 | 2.83 | 17.37 | 17.26 | 3.12 | 16.88 | 20.97 | 3.26 | 21.47 |
| Clones | Dourados 2013/15 (20 MAP) | Naviraí 2014/16 (19 MAP) | Paranavaí 2017/2018 (14 MAP) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| RY | SC | SY | RY | SC | SY | RY | SC | SY | |
| BRS Ocauçu | 42.83 a | 30.55 b | 13.03 a | 42.23 a | 33.49 b | 14.03 a | 33.13 b | 33.04 b | 10.95 a |
| BRS Boitatá | 40.68 b | 32.49 a | 13.22 a | 48.06 a | 35.18 a | 16.91 a | 37.34 a | 31.82 c | 11.88 a |
| BRS 420 | - | - | - | 44.50 a | 31.94 b | 14.27 a | 37.95 a | 31.89 c | 12.10 a |
| IAC 90 | 34.67 b | 32.28 a | 11.20 b | 37.54 a | 33.18 b | 12.45 a | - | - | - |
| Sup. Ocauçu (%)1 | 19.05 | -5.66 | 14.04 | - | - | - | -14.55 | 3.48 | - |
| Sup. Boitatá (%) | - | - | 15.28 | - | 6.03 | - | - | - | - |
| CV (%) | 38.33 | 6.55 | 40.33 | 24.55 | 4.37 | 23.79 | 8.95 | 1.4 | 8.74 |
| Clones | Ocauçu 2015/17 (18 MAP) | Marília 2016/18 (18 MAP) | ||||
|---|---|---|---|---|---|---|
| RY | SC | SY | RY | SC | SY | |
| BRS Ocauçu | 42.97 a | 31.92 b | 15.80 a | 58.67 a | 34.10 a | 20.00 a |
| BRS Boitatá | 54.83 a | 32.05 b | 17.57 a | 74.33 a | 32.70 a | 24.30 a |
| IAC 14 | 34.45 b | 34.56 a | 11.93 b | 54.40 b | 33.70 a | 18.23 b |
| Sup. Ocauçu (%)1 | 19.83 | -8.27 | 24.49 | 7.17 | - | 9.00 |
| Sup. Boitatá (%) | 37.17 | -7.83 | 32.10 | 26.78 | - | 25.1 |
| CV (%) | 28.93 | 3.08 | 30.34 | 14.12 | 3.7 | 13.51 |
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