Table 4
Effect of rootstock and seasonal fertilizer application on yeast assimilable nitrogen (YAN), ammonium (NH4+), proline (Pro), the ratio of YAN/yeast nonassimilable nitrogen (YNAN), and the initial fermentation rate (days 1–5) of Merlot grown in Oakville, CA (2005). Values in italic font represent significance at α ≤ 0.05.