Skip to main content Skip to site map
USDA Logo United States Department of Agriculture
Agricultural Research Service
0 Cart

Welcome!
GRIN-Global Logo
Effective Jan. 1, 2025, the U.S. National Plant Germplasm System will modify its SMTA acceptance policy to distinguish between propagative and non-propagative germplasm. Click here for more information.
GRIN-Global
  • USDA National Plant Germplasm System
Version:  2.3.12
  • Accessions
  • Descriptors
  • Reports
  • GRIN Taxonomy
    Search Taxonomy Crop Wild Relative Data Map U.S. Crop Wild Relatives ↗ Nodulation Data Regulations World Economic Plants
    About GRIN Taxonomy
  • GRIN
    USDA Genetic Resource Collections ↗ About GRIN-Global ↗ Use of Cookies NPGS Distribution Policy Software Disclaimer
    GRIN-U ↗
  • Help ↗
  • Contact Us
  • Your Profile
    Your Profile Your Web Request History Your Address Book Your Wish List

WALNUT.UCDAVIS.89

 
Evaluation location: California, United States
Researcher(s)
  • Leslie, Charles, University of California
Trait(s) evaluated
BLIGHTESTI
26 Accessions
CALCHARVDA
20 Accessions
CALCLFDATE
30 Accessions
CALCLSTPOL
26 Accessions
CALCMAXPOL
26 Accessions
CALCPOLSHD
26 Accessions
CALCPSTEND
27 Accessions
CATKINABUN
26 Accessions
DICHOGAMY
26 Accessions
FEMMALELAP
22 Accessions
FLWRSINFLO
27 Accessions
FRSTOVRLAP
25 Accessions
FRSTPISTIL
27 Accessions
HARVESTDAT
20 Accessions
LASTOVRLAP
25 Accessions
LATRLFLWRS
27 Accessions
LEAFDATE
30 Accessions
PEAKPISTIL
27 Accessions
POLSHDDATE
26 Accessions
SEASONCALC
20 Accessions
YIELD
26 Accessions



NPGS germplasm is not available for individual, home, or community gardening, or for home schooling or K-12 public or private school projects.

The NPGS distributes plant germplasm to professional plant breeders and other career research scientists. Requests from producers will be considered individually, when NPGS germplasm is not readily available from commercial sources. Requests for educational purposes are usually considered only from college/university faculty and students when NPGS material is integral to the project. Educational requests submitted by students should be accompanied by an endorsement from a sponsoring faculty. Any requestor may be required to provide additional information about their order, including a detailed explanation of intended purpose and proof of affiliation or professional status. Please view the short video on the NPGS for more details.

  • USDA.gov
  • FOIA
  • Information Quality
  • Plain Writing
  • Accessibility Statement
  • USA.gov
  • Policies & Links
  • Privacy Policy
  • WhiteHouse.gov
  • Civil Rights Statements
  • Non-Discrimination Statement
  • Site Map
Last updated: 24 Feb 2025