Susceptibilidad de híbridos de Populus spp. al ataque de áfidos y roya en tres localidades de Chile
Fuente:
Redalyc
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Artículo científico |
| Sprache: | es |
| Veröffentlicht: |
Universidad Austral de Chile
2011
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1876455397378752512 |
|---|---|
| author | María E Rubio-Meléndez |
| author_facet | María E Rubio-Meléndez |
| contents | Susceptibilidad de híbridos de Populus spp. al ataque de áfidos y roya en tres localidades de Chile María E Rubio-Meléndez Francisco Zamudio Claudio C Ramírez Agrociencias abundance Susceptibility Melampsora prevalence Chaitophorus leucomelas In the last few years an increasing interest on species and hybrids of the genus Populus has occurred in Chile. However, such plantations are strongly affected by pest and diseases. With the aim to identify potentially resistant (or less susceptible) hybrids of the genus Populus, the susceptibility of some poplar hybrids growing in experimental nurseries in Southern-Center Chile to the aphid Chaitophorus leucomelas Koch and to the rust Melampsora spp. was assessed. Results showed that aphid abundance was higher in the month of March, particularly in Coinco (O’Higgins Region) and lower in Pillanlelbún (Los Ríos Regions) and Yumbel (Biobío Region). In Pillanlelbún the most susceptible hybrid to aphids was TD×TD [ (P. trichocarpa x P. deltoides) x (P. trichocarpa x P. deltoides)], and the less susceptible ones were TD×D [ (P. trichocarpa x P. deltoides) x P. deltoides], T×N (P. trichocarpa x P. nigra), TMxTM [(P. trichocarpa x P. maximowitzii) x (P. trichocarpa x P. maximowitzii)] and TDxT [(P. trichocarpa x P. deltoides) x P. trichocarpa]. Hybrid TxN (P. trichocarpa x P. nigra) was the most susceptible to rust in all testing sites, while the less susceptible hybrids were TDxT [(P. trichocarpa x P. deltoides) x P. trichocarpa], TDxD [(P. trichocarpa x P. deltoides) x P. trichocarpa] and TDxT [(P. trichocarpa x P. deltoides) x P. trichocarpa]. These susceptibilities varied among localities, particularly on aphids. Genetic and environmental factors accounting for by these results are discussed. 2011 artículo científico 0304-8799 https://www.redalyc.org/articulo.oa?id=173119953003 es http://www.redalyc.org/revista.oa?id=1731 Bosque application/pdf Universidad Austral de Chile Bosque (Chile) Num.2 Vol.32 |
| format | Artículo científico |
| id | redalyc_173119953003 |
| institution | Redalyc |
| language | es |
| publishDate | 2011 |
| publisher | Universidad Austral de Chile |
| spellingShingle | Susceptibilidad de híbridos de Populus spp. al ataque de áfidos y roya en tres localidades de Chile María E Rubio-Meléndez Agrociencias abundance Susceptibility Melampsora prevalence Chaitophorus leucomelas Susceptibilidad de híbridos de Populus spp. al ataque de áfidos y roya en tres localidades de Chile María E Rubio-Meléndez Francisco Zamudio Claudio C Ramírez Agrociencias abundance Susceptibility Melampsora prevalence Chaitophorus leucomelas In the last few years an increasing interest on species and hybrids of the genus Populus has occurred in Chile. However, such plantations are strongly affected by pest and diseases. With the aim to identify potentially resistant (or less susceptible) hybrids of the genus Populus, the susceptibility of some poplar hybrids growing in experimental nurseries in Southern-Center Chile to the aphid Chaitophorus leucomelas Koch and to the rust Melampsora spp. was assessed. Results showed that aphid abundance was higher in the month of March, particularly in Coinco (O’Higgins Region) and lower in Pillanlelbún (Los Ríos Regions) and Yumbel (Biobío Region). In Pillanlelbún the most susceptible hybrid to aphids was TD×TD [ (P. trichocarpa x P. deltoides) x (P. trichocarpa x P. deltoides)], and the less susceptible ones were TD×D [ (P. trichocarpa x P. deltoides) x P. deltoides], T×N (P. trichocarpa x P. nigra), TMxTM [(P. trichocarpa x P. maximowitzii) x (P. trichocarpa x P. maximowitzii)] and TDxT [(P. trichocarpa x P. deltoides) x P. trichocarpa]. Hybrid TxN (P. trichocarpa x P. nigra) was the most susceptible to rust in all testing sites, while the less susceptible hybrids were TDxT [(P. trichocarpa x P. deltoides) x P. trichocarpa], TDxD [(P. trichocarpa x P. deltoides) x P. trichocarpa] and TDxT [(P. trichocarpa x P. deltoides) x P. trichocarpa]. These susceptibilities varied among localities, particularly on aphids. Genetic and environmental factors accounting for by these results are discussed. 2011 artículo científico 0304-8799 https://www.redalyc.org/articulo.oa?id=173119953003 es http://www.redalyc.org/revista.oa?id=1731 Bosque application/pdf Universidad Austral de Chile Bosque (Chile) Num.2 Vol.32 |
| title | Susceptibilidad de híbridos de Populus spp. al ataque de áfidos y roya en tres localidades de Chile |
| topic | Agrociencias abundance Susceptibility Melampsora prevalence Chaitophorus leucomelas |
| url | https://www.redalyc.org/articulo.oa?id=173119953003 |