The hybrids are responsive to phosphorus application, have high use efficiency and can produce high mean yields in environments with low and high phosphorus. The mean PE of these hybrids is high, therefore they are recommended for cultivation in the North and Northwest regions of Rio de Janeiro State, Brazil.
Keywords:
Plant breeding; abiotic stress; nutritional efficiency; sustainable agriculture
| Line | Population of origin | Climate adaptation |
|---|---|---|
| L53 | Beija-flor: UFV | Temperate/ Tropical |
| L54 | Beija-flor: UFV | Temperate/ Tropical |
| L59 | Beija-flor: UFV | Temperate/ Tropical |
| L61 | BRS Angela: EMBRAPA | Tropical |
| L63 | BRS Angela: EMBRAPA | Tropical |
| L65 | BRS Angela: EMBRAPA | Tropical |
| L66 | BRS Angela: EMBRAPA | Tropical |
| L69 | BRS Angela: EMBRAPA | Tropical |
| L70 | BRS Angela: EMBRAPA | Tropical |
| L71 | BRS Angela: EMBRAPA | Tropical |
| L75 | Viçosa: UFV | Temperate/ Tropical |
| L76 | Viçosa: UFV | Temperate/ Tropical |
| L77 | Viçosa: UFV | Temperate/ Tropical |
| L80 | Viçosa: UFV | Temperate/ Tropical |
| L88 | Viçosa: UFV | Temperate/ Tropical |
| P1 | Hybrid Zélia | Temperate/ Tropical |
| P2 | Composite CMS-42: EMBRAPA | Temperate/ Tropical |
| P3 | Composite CMS-42: EMBRAPA | Temperate/ Tropical |
| P4 | South American races | Temperate/ Tropical |
| P5 | Hybrid Zaeli | Temperate/ Tropical |
| P6 | Hybrid Zaeli | Temperate/ Tropical |
| P7 | Hybrid Zaeli | Temperate/ Tropical |
| P8 | Hybrid IAC-112 | Temperate/ Tropical |
| P9 | Hybrid IAC-112 | Temperate/ Tropical |
| P10 | Hybrid IAC-112 | Temperate/ Tropical |
| Genotype | YLD (kg ha-1) | PE (mL g-1) | ||
|---|---|---|---|---|
| Low P | High P | Low P | High P | |
| P2 | 1437.35 e | 1796.83 f | 20.96 d | 21.80 d |
| P7 | 1707.80 d | 2127.77 e | 27.22 b | 30.80 a |
| L59 | 1905.77 d | 2472.76 d | 23.04 c | 24.00 c |
| P6 | 1552.54 e | 1729.02 f | 24.01 c | 26.70 c |
| L76 | 953.71 f | 1124.97 g | 26.29 b | 27.90 b |
| L77 | 507.03 g | 774.90 h | 26.05 b | 25.30 c |
| L75 | 386.35 g | 504.50 i | 20.00 d | 20.10 d |
| L80 | 343.90 g | 401.19 i | 29.49 a | 31.00 a |
| P2 x P7 | 2359.40 c | 2006.47 e | 25.22 b | 27.48 b |
| P2 x L59 | 1951.18 d | 1773.51 f | 22.83 c | 23.06 d |
| P2 x P6 | 1990.21 d | 2184.32 e | 22.72 c | 25.00 c |
| P2 x L76 | 1814.20 d | 2083.60 e | 24.70 c | 24.85 c |
| P2 x L77 | 2007.60 d | 2159.76 e | 23.63 c | 25.73 c |
| P2 x L75 | 2491.73 c | 2857.63 c | 23.53 c | 21.52 d |
| P2 x L80 | 1905.39 d | 2134.87 e | 24.49 c | 26.58 c |
| P7 x L59 | 2905.84 b | 3333.46 b | 29.69 a | 27.92 b |
| P7 x P6 | 2293.87 c | 2613.54 d | 28.33 a | 30.56 a |
| P7 x L76 | 2960.35 b | 3213.04 b | 29.59 a | 29.71 a |
| P7 x L77 | 2736.51 b | 3106.86 b | 27.36 b | 30.58 a |
| P7 x L75 | 3058.55 b | 3284.67 b | 27.33 b | 26.37 c |
| P7 x L80 | 3057.82 b | 3134.64 b | 29.32 a | 31.44 a |
| L59 x P6 | 2690.12 b | 2899.81 c | 25.92 b | 26.15 c |
| L59 x L76 | 1737.63 d | 2061.84 e | 23.91 c | 25.29 c |
| L59 x L77 | 1750.21 d | 2150.25 e | 27.94 a | 26.17 c |
| L59 x L75 | 2634.36 c | 2952.55 c | 20.67 d | 21.96 d |
| L59 x L80 | 1555.62 e | 2081.99 e | 26.90 b | 27.02 b |
| P6 x L76 | 2615.98 c | 2878.44 c | 25.81 b | 27.94 b |
| P6 x L77 | 2754.53 b | 3006.07 c | 27.61 a | 28.81 b |
| P6 x L75 | 3862.42 a | 3994.75 a | 23.26 c | 24.60 c |
| P6 x L80 | 2810.30 b | 3113.48 b | 29.33 a | 29.67 a |
| L76 x L77 | 1203.27 e | 1503.63 f | 25.68 b | 27.96 b |
| L76 x L75 | 2257.84 c | 2555.88 d | 25.68 b | 23.75 c |
| L76 x L80 | 1206.70 e | 1295.69 g | 27.72 a | 28.81 b |
| L77 x L75 | 2765.39 b | 3103.30 b | 26.53 b | 24.62 c |
| L77 x L80 | 1792.40 d | 2006.10 e | 28.49 a | 29.69 a |
| L75 x L80 | 2605.31 c | 2933.74 c | 26.31 b | 25.48 c |
| Mean | 2071.37 | 2315.44 | 25.77 | 26.56 |
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