Definition
Distinguishing Characteristics
Typical Work
Prepares and plants seeds for germination tests in accordance with approved procedures (Association of Official Seed Analysts); examines and interprets sprouting of seeds to determine the percentage of strong sprouts, hard seed, dead seeds, abnormal sprouts and fresh ungerminated;
Evaluates germination potential of seeds using the tetrazolium quick testing procedures including preparation of appropriate staining, bleaching and clearing solutions; plants seeds in proper media; prepares seeds for testing by piercing, slicing or cutting; stains prepared seeds with triphenyl tetrazolium chloride (TTC)solution; maintains seeds in temperature controlled environment for prescribed periods; applies clearing solution (lactic acid); prepares processed samples for reading; evaluates samples by interpreting seed embryo stain coloration; calculates percentage of germinable seeds;
Evaluates seed quality utilizing specialized testing procedures including ultraviolet light(fluorescence) testing of Ryegrass and other grasses, hydrochloric acid testing to separate Brassica species, ferric acid testing for mechanical damage in legumes, sodium hydroxide analysis for wheat mixes, phenol test in wheat and Kentucky Bluegrass identification and vigor tests to predict field performance;
Tests seed samples for purity, sod quality, compliance with the annual bluegrass quarantine, varietal purity (Kentucky Bluegrass) and compliance with phytosanitary regulations; operates seed dividers, analytical balances, seed blowers and other equipment used in making purity analyses; separates samples for purity analysis into pure seeds, inert matter, other crop seed and weed seed; identifies seed contaminates in the sample as to genus and species and records number per pound of sample; identifies, weighs and computes percentages of impurities; identifies varieties of weed seed; separates seed of the same genus by varieties of weed seed; separates seed of the same genus by species and/or variety; applies appropriate certification and/or analytic procedures including the Federal Seed Act requirements and Association of Official Seed Analyst (AOSA), International Seed Testing Association (ISTA), Canadian and Organization of Economic Cooperative Development/European Economic Community (OECD/EEC) rules for seed testing;
Improves testing methods and develops new techniques and procedures; assists in training and checks work of laboratory personnel; provides training sessions for industry representatives;
At the Seed Analyst 4 level, plans, coordinates, directs and evaluates the work of lower-level seed analysts and other staff as may be assigned; may act in the absence of the lab supervisor;
Performs other duties as required.
Knowledge and Abilities
Legal Requirement(s)
Desirable Qualifications
OR
Equivalent education/experience.
Class Specification History
Revised minimum qualifications for Seed Analyst 1: 9-11-81
Revised definition:1-11-85
Revised definition, distinguishing characteristics and minimum qualifications: 1-10-92
New class code: (formerly 45040) effective July 1, 2007