BRS Rendeira and BRS Progresso are cassava (Manihot esculenta Crantz) cultivars with tolerance to post-harvest deterioration and high mean yields of fresh root (31.1 and 27.9 t ha-1) and starch (8.9 and 8.1 t ha-1) in annual production cycles. Both new varieties are recommended for the flour and starch industry.
Keywords:
Manihot esculenta Crantz; industrial variety; shelf-life; root yield
| City | Altitude (m) | Coordinates | Soil classification |
|---|---|---|---|
| Alagoinhas | 130 | 12°05' S, 38°21' W | Yellow oxisol |
| Cruz das Almas | 225 | 12º40' S, 39º06' W | Yellow Oxisol and Argisol |
| Laje | 190 | 12º36' S, 38º44' W | Red to Red Yellow Oxisol - Medium Texture |
| Santo Amaro | 88 | 13º10' S, 39º25' W | Cambisols and vertisols |
| Valença | 40 | 13°15' S, 39°14' W | Red Yellow Oxisol |
| Variety | FRY | PPD | DMC | ShY | DRY | NRP | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | LSD | Mean | LSD | Mean | LSD | Mean | LSD | Mean | LSD | Mean | LSD | |
| BRS Rendeira | 31.1 | a | 0.3 | d | 33.4 | g | 22.4 | b | 8.9 | a | 7.2 | a |
| BRS Progresso | 27.9 | b | 0.1 | d | 33.8 | g | 22.3 | b | 8.1 | bc | 6.4 | bc |
| BRS Formosa | 28.3 | b | 35.2 | c | 35.3 | e | 16 | d | 8.7 | ab | 6.5 | b |
| BRS Kiriris | 26.6 | bc | - | - | 35.3 | e | 17.3 | cd | 8.2 | bc | 6 | cd |
| BRS Mulatinha | 24.3 | d | 44.2 | b | 37.6 | b | 24.6 | a | 8.1 | bc | 5.5 | de |
| BRS Novo Horizonte | 27.5 | b | 71.6 | a | 38.3 | a | 25.2 | a | 9.3 | a | 6.3 | bc |
| BRS Poti Branca | 25.3 | cd | - | - | 34.6 | f | 25.1 | a | 7.7 | cd | 6.3 | bc |
| Cigana Preta | 17.8 | f | 43.5 | b | 35.7 | d | 21.4 | b | 5.7 | e | 4.5 | g |
| Correntão | 19.5 | ef | - | - | 35.6 | de | 22.3 | b | 6.1 | e | 4.6 | fg |
| Corrente | 21.4 | e | 66.5 | a | 37 | c | 19.2 | c | 7 | d | 5.1 | ef |
| Vasoura Preta | 24.4 | cd | - | - | 35.6 | de | 15.9 | d | 7.7 | cd | 6.2 | bc |
| Coeficient of variation | 17 | 20.7 | 2.8 | 18.3 | 17.3 | 15.1 | ||||||
| Trait | BRS Progresso | BRS Rendeira | |
|---|---|---|---|
| Stem | Color of the outer layer of the epidermis | Golden | Golden |
| Color of the inner layer of the epidermis | Orange | Orange | |
| Cortex color | Light green | Light green | |
| Phyllotaxis length | Medium | Medium | |
| Predominant number of primary branches | None | Two | |
| Leaf | Apical leaf color | Purplish green | Purplish green |
| Color of fully expanded leaf | Dark green | Dark green | |
| Central vein color | Red-greenish | Green-redisch | |
| Shape of the central lobe | Lanceolate | Lanceolate | |
| Sinuosity of lobes | Present | Present | |
| Petiole | Petiole color | Red | Green |
| Plant | Pubescence of young leaves | Present | Present |
| Root | Cortex color | Cream | Cream |
| Skin color | Dark brown | Dark brown | |
| Shape | Conic-cylindrical | Conic-cylindrical | |
| Presence of peduncle | Mixed | Mixed | |
| Epidermis texture | Smooth | Smooth |
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