1982
DOI: 10.1111/j.1365-2338.1982.tb01702.x
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Influence d'une fertilisation azotée excessive, du porte‐greffe et de la charge sur la sensibilité du cépage Merlot àBotrytis cinerea1

Abstract: Une expérience multifactorielle a été entreprise dans le dessein d'évaluer l'effet de la fumure azotée à deux niveaux, de quatre porte‐greffe et de deux systèmes de taille sur la sensibilityé du cépage Merlot àBotrytis cinerea. II est apparu qu'une fumure excessive en azote (100 kg N/ha/année) augmente d'une façon significative la sensibilityéà la pourriture grise. Le porte‐greffe S04 a également favorisé le développement du champignon, mais sous l'effet d'autres mécanismes. Quant à la taille, elle n'a pas rév… Show more

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“…Numerous studies have reported a stimulating effect of N supply on fruit yield, particularly if the added N alleviated a deficiency (Ewart and Kliewer 1977, Ahmedullah et al 1987, Kliewer et al 1991. The increased susceptibility of grape berries to B. cinerea following heavy N supply also is well documented (Delas et al 1982, Champagnol 1984, Ferreira and Marais 1987, Perret et al 1994, and rootstock effects on bunch-rot infection on the grafting partner have been reported in the literature (Egger et al 1982, Delas et al 1982, Ferreira and Marais 1987. According to Ferreira and Marais (1987), this effect is associated with the rootstock's influence on scion vigour and bunch compactness, the latter being in good agreement with the present results.…”
Section: Bunch Rotsupporting
confidence: 90%
“…Numerous studies have reported a stimulating effect of N supply on fruit yield, particularly if the added N alleviated a deficiency (Ewart and Kliewer 1977, Ahmedullah et al 1987, Kliewer et al 1991. The increased susceptibility of grape berries to B. cinerea following heavy N supply also is well documented (Delas et al 1982, Champagnol 1984, Ferreira and Marais 1987, Perret et al 1994, and rootstock effects on bunch-rot infection on the grafting partner have been reported in the literature (Egger et al 1982, Delas et al 1982, Ferreira and Marais 1987. According to Ferreira and Marais (1987), this effect is associated with the rootstock's influence on scion vigour and bunch compactness, the latter being in good agreement with the present results.…”
Section: Bunch Rotsupporting
confidence: 90%