Virtual Referee for Asteraceae I
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Transcript Virtual Referee for Asteraceae I
Virtual Referee for Asteraceae I- Lettuce
Referee Introduction
Introduction
Lettuce growers require seed lots that have rapid and uniform
emergence with consistent head development so fields need to be
harvested only once.
Physiological necrosis can affect the development of the lettuce
head.
The evaluation of lettuce requires a skilled analyst who can
accurately classify small seedlings.
Evaluations often include interpretation of various degrees of
physiological necrosis and require the correct and consistent
application of the “50% Rule” to the functionality of the cotyledons.
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Purpose
To promote precision, standardization, and uniformity among
seed labs regarding lettuce evaluation.
To test the interpretation and adequacy of the existing AOSA
Rules Vol. 4 Seedling Evaluation Handbook.
To provide data to be used as supporting evidence for future
AOSA Rules proposals.
To serve as a seedling evaluation training tool within labs utilizing
color images.
To develop a lettuce seedling evaluation webinar used for training
across all aspects of the seed testing industry.
Harmonize with ISTA Rules by utilizing color photos for necrosis
evaluation and seedling classification.
Clarify the difference between physiological necrosis, decay,
mechanical damage and discoloration by visual comparison.
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Objectives
Conduct a Virtual Lettuce Referee that tests the
evaluation criteria of the Seedling Evaluation Handbook
Volume 4.
Test the interpretation and adequacy of the existing
AOSA Rules for evaluating lettuce and the application of
the 50% Rule to the functionality of the cotyledons.
Modify the criteria for the new AOSA Seedling
Evaluation Handbook (SEH) for the Asteraceae Sunflower
Family I – Lettuce, based on the results of the referee.
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Instructions
All analysts are encouraged to participate in this referee,
regardless of their lettuce evaluation experience. Surveys from
each evaluator are permitted from a single lab.
Each participating lab will receive one CD from Anita with this
introductory power point, seedling photos and a blank answer
form to duplicate as needed for each participant.
Answers will be recorded electronically via Survey Monkey.
You can find the link to the Lettuce Virtual Referee Survey
Monkey on the AOSA and SCST homepages.
Please rate your skill level on the answer form as well as
approximately how many lettuce samples your lab tests each
year.
One continuing education point will be given to each
participant.
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Contacts
Elizabeth Bada
Connie O’Brien
Nunhems USA, INC.
ESTA
1200 Anderson Corner Road
7240 Holsclaw Road
Parma, Idaho 83660
Gilroy, CA 95020
Phone: 208-674-4158
Phone: 408-846-9964
Fax: 208-674-4002
Fax: 408-846--9954
E-Mail: [email protected]
[email protected]
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Asteraceae Family I- Lettuce Committee
Members
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
With special thanks to Riad Baalbaki – CDFA
Riad Baalbaki has taken all pictures using “Zoomify”, which he demonstrated at the 2012 AOSA/SCST
annual meeting in Des Moines, IA
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