NAPB 32


1.   NAPB 32 is a 40-clone synthetic variety. Parent clones selected following 3-5 cycles of field screening for resistance to Verticillium wilt, from populations which have previously been screened for winter survival and resistance to Phytophthora root rot, anthracnose, bacterial wilt and Fusarium wilt.


1A.   Parentage traces to Apollo (31%), Marvinskaya 425 (15%), Armor, Thunder, and Krasnodarskaja Ranniaja (7% each) and Answer, Anchor, Arc, G 7730, Saranac AR, Spredor, Titan, Weevlchek, Vernal and Fygeva 118 (5% or less each). Germplasm sources are M. falcata (7%), Ladak (8%), M. varia (24%), Turkistan (16%), Flemish (38%), Chilean (4%), and Peruvian (3%).


2.   NAPB 32 is intended for use in the northern region of the U.S. for hay, haylage, greenchop or dehy. It has been tested in Iowa, Illinois, Idaho, Wisconsin, Pennsylvania and New York.


3.  NAPB 32 is a moderately dormant variety similar to Saranac in fall dormancy. Flower color is approximately 78% purple and 22% variegated with less than 1% cream and yellow.


4.   NAPB 32 has high resistance to bacterial wilt, Fusarium wilt and anthracnose and resistance to Phytopthora root rot, Verticillium wilt and downy mildew. It has not been adequately tested for reaction to stem nematode, pea aphid, spotted alfalfa aphid and blue alfalfa aphid.


5.   Breeder (Syn. 2) seed was produced from Syn. 1 near Nampa. ID with a sufficient quantity for the expected life of the variety held in controlled storage. Two years production was bulked. Seed increase is limited to one generation each of breeder, foundation, and certified classes. Certified seed may be produced from breeder or foundation. A 3 and 6 year stand life is permitted on fields producing foundation and certified seed, respectively. Foundation seed production is limited to the northern region of adaptation.


6.   Certified seed will be available in 1988.


7.   No decision regarding application for Plant Variety Protection has been made.


8.   Information contained in this application may be turned over to the PVP office.

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