Details for: PI 658722, Solanum tuberosum L., 'DEFENDER'


Summary Data
Taxonomy:
Solanum tuberosum L.
Cultivar:
'DEFENDER'
Origin:
Developed – Idaho, United States
Received by NPGS:
03 Mar 2010
Improvement Status:
Cultivar
Form Received:
In-vitro
Life Form:
Annual
Life Cycle:
Annual
Availability
FormQuantityNoteInventoryCart
In-vitro3 countPI 658722 2025 IV
 
Restrictions
Subject to federal import restriction(s)
https://acir.aphis.usda.gov/s/plants-for-planting-hub
  • USA – (Canada; All propagules except seeds)
Plant material may be subject to additional regulations
https://www.nationalplantboard.org/uploads/1/3/6/7/136771235/mainestatesummary22.docx
  • USA – Maine (See state regulations: Potato Quarantine and Imported Seed Potatoes. )
https://www.nationalplantboard.org/uploads/1/3/6/7/136771235/nevada_state_regulations_npb_13december2023.pdf
  • USA – Nevada (See state regulations: Colorado potato beetle, late blight of potato and tomato)
There are no images for this accession.

Core Passport Data
Taxonomy:
Solanum tuberosum L.
Cultivar:
'DEFENDER'
Origin:
Developed – Idaho, United States
Received by NPGS:
03 Mar 2010
Improvement Status:
Cultivar
Form Received:
In-vitro
Life Form:
Annual
Life Cycle:
Annual
Source History
Developed
2006.
Idaho, United States
Comment: Defender was first grown and selected in the field at Aberdeen, ID, in 1993 where it was given the clonal designation A90586-11. It originated from a hybridization by J. J. Pavek in 1990 between breeding clone KSA195-90 and Ranger Russet. KSA195-90 was a selection made at Aberdeen, ID, from true potato seed received from the Polish Plant Breeding and Acclimatization Institute, Radzikow, Poland.
Developer(s):
Accession Names and Identifiers
'DEFENDER'
Type: Cultivar name

Narrative
A high-yielding, white-skinned potato variety notable for having foliar and tuber resistance to late blight infection caused byPhytophthora infestans (Mont.) de Bary. Defender is suitable for processing into french fries and other frozen potato products directly from the field or from storage. Defender also may be used for fresh markets in regions such as California, where cultivars with long tubers and white skin are traditionally grown. Resistances to late blight and other potato diseases make Defender an ideal candidate for organic potato production. Defender consistently produced greater total and U.S. No. 1 yields than ‘Russet Burbank’ in Idaho trials. Specific gravity of Defender is consistently high, with values comparable to those of Ranger Russet; tuber ascorbic acid (Vitamin C) levels are also high. In addition to late blight, Defender also is resistant to tuber early blight (Alternaria solani, (Ellis & G. Martin), L.R. Jones & Grout), potato virus X, and net necrosis; it has moderate levels of resistance to Verticillium wilt (Verticillium dahliae, Kleb), pink rot, foliar early blight, corky ringspot, and Erwinia soft rot. Defender is susceptible to scab (common and powdery) and potato leafroll virus; it has moderate susceptibility to dry rot (Fusarium spp.) and potato virus Y. Susceptibilities to internal necrosis, tuber greening, and blackspot bruise also have been noted, but may be minimized through cultural and harvest practices.
Solanum tuberosum L.
Genus:
Solanum
Subgenus:
Potatoe
Section:
Petota
Family:
Solanaceae
Subfamily:
Solanoideae
Tribe:
Solaneae
Nomen number:

103137
Place of publication:

Sp. pl. 1:185. 1753
Verified:
05/20/1992 by ARS Systematic Botanists.
Other conspecific taxa
Solanum tuberosum L. subsp. andigenum (Juz. & Bukasov) Hawkes (1011 active accession[s])
Solanum tuberosum L. subsp. chiloense (A. DC.) L. I. Kostina (0 active accession[s])
Solanum tuberosum L. subsp. tuberosum (53 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Heterotypic Synonym(s)
Common names
LanguageNameAlternate namenoteseqCitation
Englishpotato  1McGuffin, M., J. T. Kartesz, A. Y. Leung, & A. O. Tucker. 2000. Herbs of commerce, ed. 2 American Herbal Products Association, Silver Spring, Maryland.
Annotations
Other Links
Plant Variety Protection Form
Actions
  • Non Genetically-Engineered Organism: Per deposit form. 03 Sep 2021.
Pathogens
Vouchers
Citations
Pedigree
Date released:
2006
Description:
KSA195-90 x Ranger Russet
Intellectual Property Rights

U.S. Plant Variety Protection
PVP 200400140
Variety: Defender
Taxonomy: Solanum tuberosum L.
Experimental name/synonym: A90586-11
Crop: POTATO
Applicant: Idaho Research Foundation, Inc.
Date filed: 03/11/2004
Date issued: 03/01/2005
Status: Certificate Issued
Status date: 03/01/2005