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United States Department of Agriculture

Agricultural Research Service

Research Project: SELECTION OF POTATO GERMPLASM RESISTANT TO PURPLE TOP PHYTOPLASMA AND LATE BLIGHT IN THE TOLUCA VALLEY OF MEXICO

Location: Vegetable and Forage Crops Production Research

Project Number: 5354-21220-010-27
Project Type: Specific Cooperative Agreement

Start Date: Sep 01, 2008
End Date: Aug 31, 2013

Objective:
Select potato germplasm resistant to two pathogens, a leafhopper vectored phytoplasma which causes purple top and an oomycete that incites late blight.

Approach:
Tuber families will be sent to PICTIPAPA from various sources in the the US. These will be planted out in field plots in Metepec, Mexico under the supervision of Hector Lozoya Saldana. Obvservations on foliar damage due to Phytophthora infestans and Purple Top Phytoplasma will be recorded. At harvest, selection will be based on field notes and tuber yield and type. Tubers will be retained during the off-season and re-planted the following growing season. Documents SCA with Universidad Autonoma Chapingo.

Last Modified: 7/31/2014
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