Reproductive growth of grapevines in response to nitrogen supply and rootstock

By Markus Keller, M. Kummer, M. Vasconcelos. 2001

119 citations recorded by the source corpus.

Nitrogen fertiliser was applied at two rates (0 or 100 kg N/ha) to field-grown Muller-Thurgau grapevines grafted onto six rootstocks (Kober 5BB, Teleki 5C, Teleki 8B, Selection Oppenheim 4, Couderc 3309, Ruggeri 140). Half the nitrogen was applied four weeks pre-flowering and half at the end of flowering. Nitrogen supply reduced symptoms of inflorescence necrosis and improved fruit set, but increased bunch-stem necrosis, Botrytis cinerea bunch rot and yield. This was associated with reduced grape sugar, higher acidity and lower pH. Rootstocks had no significant effect on inflorescence necrosis, bunch-stem necrosis and bunch rot, but vines grafted on C-3309 and Ru-140 had both lowest yields and highest fruit quality. Nitrogen ¥ rootstock interactions were rare and contributed little to total variance, suggesting that rootstock-induced differences in scion performance were, except for SO4, largely independent of soil nitrogen level.

Subfields: Plant Science, Soil Science

View Paper: https://www.semanticscholar.org/paper/b41d4657ff9685333907cdce7b41f356bb74f147

How researchers see this paper

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In Plant Science

1. J. Tello
2. P. Elmer
3. S. Wratten
4. T. Michailides
5. M. Walter
6. Marco Jacometti
7. J. Ibáñez
8. G. Gurr

Citations in the corpus

• Grey mould incidence is reduced on grapevines with lower vegetative and reproductive growth (2008, background): “cinerea was enhanced by high nitrogen (N) fertilisation (Conradie and Saayman, 1989; Fox, 1993; Keller et al., 2001).”
• Review: Alternatives to synthetic fungicides for Botrytis cinerea management in vineyards (2010, background): “Vine vigour is influenced by grape variety (Jackson 1994a), rootstock selection (Pearson and Goheen 1988), irrigation regimes (Elmer and Michailides 2004) and fertilisation, especially with respect to nitrogen (Keller et al. 2001).”
• What do we know about grapevine bunch compactness? A state‐of‐the‐art review (2018, background): “In a study to evaluate short-term responses to N supply in cv. Müller-Thurgau, Keller et al. (2001) observed that fertilisation generated more compact bunches due to an increase of both berry number (because of a higher fruitset rate) and berry size, which favoured the appearance of Botrytis bunch…”
• EPIDEMIOLOGY OF BOTRYTIS CINEREA IN ORCHARD AND VINE CROPS (2007, background): “An over-supply of N leads to excessive growth in terms of vine vigour, berry number, bunch compaction and cuticle thinning - factors all known to increase grey mould (Delas et al., 1984, 1991; Keller et al., 2001).”