Sugarcane cultivar RB0442 has a high yield, late maturation and good drought tolerance. It is recommended for planting in restrictive environments, mainly with water-deficient soils, and is resistant to the major sugarcane diseases of the Northeastern region of Brazil.
Keywords:
Saccharum spp.; plant breeding; water stress.
| Environments | Crop cycle | TCH | TTRSH | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| RB0442 | RB92579 | Difference+ | % | RB0442 | RB92579 | Difference+ | % | ||||
| All environments | Plant-cane | 146.21 | 136.36 | 9.86 | 7.23 | 18.52 | 18.98 | -0.46 | -2.44 | ||
| First-ratoon | 110.52 | 93.06 | 17.46 | 18.77 | 15.09 | 14.06 | 1.03 | 7.32 | |||
| Second-ratoon | 124.54 | 99.46 | 25.08 | 25.22 | 15.60 | 13.95 | 1.65 | 11.81 | |||
| Mean | 129.11 | 112.87 | 16.24* | 14.39 | 16.66 | 16.09 | 0.56 | 3.50 | |||
| Favorable environments | Plant-cane | 165.12 | 154.56 | 10.56 | 6.83 | 20.97 | 21.24 | -0.28 | -1.31 | ||
| First-ratoon | 140.87 | 131.29 | 9.58 | 7.30 | 19.10 | 20.43 | -1.33 | -6.50 | |||
| Second-ratoon | 141.02 | 138.20 | 2.81 | 2.04 | 16.74 | 18.58 | -1.84 | -9.91 | |||
| Mean | 157.68 | 148.46 | 9.22 | 6.21 | 20.03 | 20.71 | -0.68 | -3.28 | |||
| Unfavorable environments | Plant-cane | 103.68 | 95.41 | 8.27 | 8.67 | 13.00 | 13.88 | -0.88 | -6.34 | ||
| First-ratoon | 102.93 | 83.50 | 19.43* | 23.27 | 14.08 | 12.46 | 1.62 | 12.99 | |||
| Second-ratoon | 119.05 | 86.55 | 32.50* | 37.55 | 15.22 | 12.41 | 2.81 | 22.65 | |||
| Mean | 108.47 | 87.16 | 21.31* | 24.45 | 14.22 | 12.76 | 1.46 | 11.45 | |||
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