Thesis
Investigating possible causes of replant disorder in 'Concord' grape (Vitis labruscana Bailey)
Washington State University
Master of Science (MS), Washington State University
2014
Handle:
https://hdl.handle.net/2376/103233
Abstract
‘Concord’ grape is an important crop in Washington State, which is the largest producer in the United States, and replant disorder (RPD) is a potential risk for the industry. RPD is defined as the poor growth in a new planting after a vineyard is removed due to decline in production, or when a dead vine is replaced with a new vine within the vineyard. To better understand RPD, this project was conducted with the purpose of identifying potential causes of RPD in ‘Concord’ grape. To achieve this objective, Warden silt loam soil was collected from different sites in Yakima Valley which included: non-replanted ‘Concord’ vineyards, replanted ‘Concord’ vineyards, a non-replanted cherry orchard, a replanted apple orchard, and non-cultivated sites. Soil collected was sieved and used to plant certified own-rooted ‘Concord’ vines. Pots were greenhouse grown for two growing seasons. A standard soil chemical analysis was conducted at the beginning of the experiment on each of the collected soils to establish the baseline soil chemistry. Plant-parasitic nematode populations were determined in the soils prior to planting and at the end of the experiment. During both growing seasons, a single shoot on each vine was measured for shoot length and leaf area. Between season one and season two, each vine was pruned, and the pruning mass was weighed. At the end of the experiment the plants were destructively harvested and dry mass was collected. Results showed that some soil parameters (zinc, calcium, sodium, organic matter) differed by soil sampling location. In addition, there was evidence that these parameters may be related with ‘Concord’ RPD as co factors or through regulating nematode development. Meloidogyne hapla (Root-knot nematode) was the nematode most often related to reduce plant growth. The data also showed high levels of nematode in soils from tree fruit orchards, suggesting that these may not be suitable for planting to ‘Concord’.
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Details
- Title
- Investigating possible causes of replant disorder in 'Concord' grape (Vitis labruscana Bailey)
- Creators
- Enrique Anibal Proano Garcia
- Contributors
- Joan R. Davenport (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Crop and Soil Sciences, Department of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Identifiers
- 99900525098201842
- Language
- English
- Resource Type
- Thesis