532

1.   532 is a nine clone synthetic comprised of 80% Flemish type and 20% fall-dormant types. Parentage traces to clones from 530(1), to a germplasm pool selected for persistence in Iowa(6), and F1 crosses of Flemish and fall dormant types(2). Clonal selections were based on resistance to spotted alfalfa aphid and bacterial wilt and seed yield. High forage yield was one criteria for selection in progeny row tests at two locations.

2.   The cultivar will be merchandised in those states where 531 and Saranac are being used for hay, haylage, de-hy, and grazing. 532 has been evaluated in Indiana, Iowa, Wisconsin and Minnesota.

3.   Flower color is approximately 90% purple and 10% variegated. Fall dormancy is similar to Ranger.

4.   532 has high resistance to bacterial wilt and moderate resistance to Phytophthora root rot, anthracnose and the spotted alfalfa aphid. It has not been adequately tested for pea aphid, Fusarium wilt and stem nematode.

5.   It is intended that a four generation sequence - breeder, foundation, registered and certified be used for 532. Breeders (Syn 1) seed is composed of bulk harvested seed from the nine parental clones produced in a cage. Either foundation or registered seed may be used to establish certified seed fields.

6.   Certified seed will be available in the spring of 1980.

7.   No application for Plant Variety Protection is contemplated.

 

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