New York Codes, Rules and Regulations
Title 1 - DEPARTMENT OF AGRICULTURE AND MARKETS
Chapter III - Plant Industry
Subchapter A - Inspection and Sale of Seeds (Article 9, Agriculture and Markets Law)
Part 104 - Foundation Single-cross Corn Seed Certification Standards
Section 104.4 - Field standards
Universal Citation: 1 NY Comp Codes Rules and Regs ยง 104.4
Current through Register Vol. 46, No. 39, September 25, 2024
(a) General.
(1) Unit of certification. The
entire acreage of any one specific foundation single cross grown by and/or
belonging to one applicant must be eligible and be inspected. Any field or
portion of a field failing to meet requirements must be so disposed of that it
cannot be used for seed purposes.
(2) Isolation requirement. A production field
of a specific foundation single cross involving male sterile material must be
so located that it is not less than 40 rods from any other kind of corn. In
case of normal single cross seed production fields, the following exceptions
will apply:
(i) Adequate natural barriers for
modifying isolation distances; and
(ii) Differential maturity dates may permit
modifying isolation distances, provided that there are no receptive silks in
the ear parent at the time pollen is being shed in the contaminating
field.
(3) Detasseling.
The following requirements apply only when 5.0 per cent or more of the ear
parent plants have apparently receptive silks:
(i) A foundation single cross will not be
accepted for certification if on any one inspection more than 1.0 per cent of
the ear parent plants have shed pollen, or on any three inspections on
different dates exceeds 2.0 per cent;
(ii) When more than one combination is being
grown in the same isolation and the ear parent of one or more of them is
shedding pollen in excess of 1.0 per cent, all ear parents having five per cent
or more apparently receptive silks at that time will be disqualified unless
adequately isolated from the shedding ear parent;
(iii) Sucker tassels, portions of tassels on
main plants will be counted as shedding pollen when two inches or more of the
central stem, the side branches or a combination of the two have the anthers
extended from the glumes.
(b) Specific requirements.
(1) An isolation in which more than 0.1 per
cent definitely offtype, or more than 1.0 per cent, doubtful-type plants in the
pollen parent have shed pollen, will not be certified.
(2) At the time of the last inspection the
ear parent shall not contain in excess of 0.1 per cent definitely offtype or
1.0 per cent doubtful-type plants.
(3) Any plant shedding pollen in the male
sterile rows must be completely destroyed.
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