(a) The general seed certification standards are basic and together with the following specific standards constitute the standards for the certification of hybrid summer squash.

(b) Section 96.3 of the general standards is modified as follows: only the certified class of seed is recognized.

(c) A commercial hybrid to be certified must be produced from seed stock approved by the College of Agriculture Seed Committee.

(d) A closed pedigree hybrid may be certified provided the producer submits an affidavit with his application designating the hybrid. Pedigrees of these hybrids may be coded.

(e) The producer, at the time the seed production field is planted, must also in a separate nursery area plant sufficient row length without thinning of the plants to produce at least 100 plants of each parent, as well as the commercial hybrid seed if the latter is available.