Final answer:
The five most grown white grape varieties in California are Chardonnay, Sauvignon Blanc, Pinot Gris, Viognier, and Riesling, which are key to the state's viticultural industry with a history dating back to Spanish missionaries.
Step-by-step explanation:
The five most grown white grape varieties in California, from greatest to least, are:
- Chardonnay
- Sauvignon Blanc
- Pinot Gris (also known as Pinot Grigio)
- Viognier
- Riesling
These varieties are integral to California's viticultural success and form an important part of the state's agricultural economy, tracing its roots back to the introduction of viticulture by the Spanish missionaries. The popularity of these grape varieties is reflective of consumer demand and the climate conditions that are conducive for their growth in California's diverse winemaking regions.