IAC Herculândia is a Coffea canephora cultivar multiresistant to Meloidogyne exigua, M. incognita, and M. paranaensis to be used as a rootstock for Coffea arabica cultivars. It is a synthetic cultivar resulting from recombination among the clonal cultivars IAC WG, IAC FEBS, IAC PM, IAC LCCBF, and IAC ARM.
Keywords:
Coffee breeding; nematode resistance; resistant cultivars; root-knot nematodes
| M. paranaensis 1 | M. incognita | M. exigua | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Intercross | RF2 | RRF3 | RF | RRF | RF | RRF | |||
| Mean | RF<1 | Mean | Mean | RF<1 | Mean | Mean | RF<1 | Mean | |
| % | % | % | % | % | % | ||||
| IAC WG × IAC FEBS / IAC FEBS × IAC WG | 0.63 | 92 | 96 | 0.03 | 100 | 100 | 0.00 | 100 | 100 |
| IAC WG × IAC PM / IAC PM × IAC WG | 0.83 | 85 | 94 | 0.03 | 100 | 100 | 0.00 | 100 | 100 |
| IAC WG × IAC LCCBF / IAC LCCBF × IAC WG | 0.46 | 92 | 97 | 0.01 | 100 | 100 | 0.00 | 100 | 100 |
| IAC WG × IAC ARM / IAC ARM × IAC WG | 0.58 | 88 | 96 | 0.00 | 100 | 100 | 0.00 | 100 | 100 |
| IAC FEBS × IAC PM / IAC PM × IAC FEBS | 0.47 | 92 | 97 | 0.09 | 100 | 100 | 0.00 | 100 | 100 |
| IAC FEBS × IAC LCCBF / IAC LCCBF × IAC FEBS | 0.82 | 92 | 94 | 0.02 | 100 | 100 | 0.00 | 100 | 100 |
| IAC FEBS × IAC ARM / IAC ARM × IAC FEBS | 0.02 | 100 | 100 | 0.01 | 100 | 100 | 0.01 | 100 | 100 |
| IAC PM × IAC LCCBF / IAC LCCBF × IAC PM | 0.33 | 94 | 98 | 0.01 | 100 | 100 | 0.00 | 100 | 100 |
| IAC PM × IAC ARM / IAC ARM × IAC PM | 1.37 | 96 | 90 | 0.02 | 100 | 100 | 0.00 | 100 | 100 |
| IAC LCCBF × IAC ARM / IAC ARM × IAC LCCBF | 0.11 | 96 | 99 | 0.01 | 100 | 100 | 0.02 | 100 | 100 |
| Mean | 0.56 | 93 | 96 | 0.02 | 100 | 100 | 0.02 | 100 | 100 |
| Mundo Novo IAC 515-204 | 14.74 | 0 | 17.40 | 0 | 15.92 | 0 | |||
Thumbnail
