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- Title
Effect of Rootstock on Vineyard Establishment Using Green-Growing Benchgrafts.
- Authors
Munoz Jr., Jose R.; Stauch, Samantha J.; Wootten, Jennifer; Kitchen, Matthew; Abreu, Matteo; Rodriguez, Christian Jose; Casassa, L. Federico; Wolpert, James A.; Dodson Peterson, Jean Catherine
- Abstract
Demand for vine plant material has increased drastically due to the ongoing expansion of viticulture, and recent widespread replanting efforts. Nurseries and growers are turning to green-grafted vines to meet demand. Unfortunately, most vineyard establishment studies have centered around dormant benchgrafted vines. Thus, little is known regarding the specific establishment trends of green-growing benchgrafts. This study aimed to explore the role rootstock selection has in green-growing benchgraft establishment and development over the first four years post-planting. Vitis vinifera L. cv. Sauvignon blanc was grafted onto multiple rootstocks of varying parentage, including '101-14MGT' (V. riparia × V. rupestris), '1103P' (V. berlandieri × V. rupestris), '110R' (V. berlandieri × V. rupestris), '420A MGT' (V. berlandieri × V. riparia), and 'Teleki 5C' (V. berlandieri × V. riparia). The experimental site was organized using a completely randomized design (n = 12) with all vines managed to industry-standard cultural practices. Vines grafted onto 1103P had the largest average trunk diameter (p = 0.0012) and circumference (p < 0.0001) at 22.2 mm and 7.57 cm, respectively. Vines grafted onto 110R had the second-largest trunk circumference at 6.65 cm. Vines grafted onto 110R had the largest concentration of total non-structural carbohydrates at planting at 1.47 g/L, followed by 1103P at 1.25 g/L (p < 0.0001). Total non-structural carbohydrate concentrations in the trunk during dormancy was the highest in 110R at 16.0% total dry weight (p = 0.0008). The larger trunk size and more extensive carbohydrate reserves suggest that green-growing benchgrafts using 110R or 1103P have a higher capacity and likelihood of establishment success.
- Subjects
CALIFORNIA; ROOTSTOCKS; SAUVIGNON blanc; VITIS vinifera; VITICULTURE; VINEYARDS; NURSERY growers; CLIMBING plants
- Publication
Agronomy, 2023, Vol 13, Issue 6, p1586
- ISSN
2073-4395
- Publication type
Article
- DOI
10.3390/agronomy13061586