Question: The Swiss agribusiness that owns the Minnesota Northrup-King seed company was formed in 2000 by a merger of Zeneca and which other corporation?

Context paragraphs:
Park Seed Company Gardens: The national headquarters for Park Seed Company and Wayside Gardens is located in Greenwood, South Carolina.  The headquarters complex is surrounded by 9 acre of gardens that are maintained by the Park Seed Company for many purposes.  In addition to supporting scientific and horticultural experimentation, they are a source of aesthetic pleasure and inspiration to employees, community members, and visitors from around the world.

J.W. Jung Seed Company: The J.W. Jung Seed Company is a privately held garden seed company founded in 1907 in Randolph, Wisconsin by John William "J.W." Jung.  The company publishes several seed catalogs including "Jung Seed, Select Seeds, Totally Tomatoes, Vermont Bean Seed Company, R. H. Shumway, McClure & Zimmerman" and "HPS Seed."  The company also runs several retail garden centers in Wisconsin.

Stine Seed: Stine Seed Company is the world's largest private seed company, and the largest independent seed company in the US.  It has over 900 patents, specialising in soybean and corn genetics, is based in the small town of Adel, Iowa, and is almost entirely owned by Harry Stine and his four children.

Syngenta: Syngenta AG is a global Swiss agribusiness that produces agrochemicals and seeds.  As a biotechnology company, it conducts genomic research.  It was formed in 2000 by the merger of Novartis Agribusiness and Zeneca Agrochemicals.  s of 2014 Syngenta was the world’s largest crop chemical producer, strongest in Europe.  s of 2009 it ranked third in seeds and biotechnology sales.

DLF (seed company): DLF (formerly DLF-TRIFOLIUM) is a leading international supplier of grass seed company headquartered in Roskilde, Denmark.  It works in R&D, production and sales of cool season grass and clover seeds directed towards the major seed consuming areas of the world.  The company is owned by 3,200 Danish grass seed growers through DLF AmbA, and employs 826 people in 13 countries.  It supplies more than 80 countries of clover and grass seeds for purposes ranging from forage grasses for agriculture to turf grasses for both the professional and private markets.  With an estimated world market share of approximately 25% (2014), the group is the world’s largest grass seed company within the breeding, production, sales and marketing of cool season clover and grass seed species.  DLF delivers grass seeds for major sport events.

Park Seed Company: Park Seed Company is one of America's oldest and largest mail-order seed companies based in Greenwood, South Carolina.  Park Seed specializes in garden seeds, offering more than 1,100 varieties of flower, vegetable, and herb seeds, plus a large selection of bulbs, live plants, and gardening accessories.  Park Seed Company distributes millions of catalogs every year and maintains an online retail presence.  Park Seed is a division of Jackson & Perkins Park Acquisitions, which is a subsidiary of publicly traded Western Capital Resources.

S. Pressly Coker House: S. Pressly Coker House is a historic home located at Hartsville, Darlington County, South Carolina.  It was built in 1917, it is a blending of elements of both the Shingle Style and Colonial Revival styles, with the form and massing of the bungalow.  It is a two-story, three bay, rectangular, shingle-clad residence.  It features an engaged one-story portico which extends and wraps to form a porte-cochère.  It was the home of S. Pressly Coker (1887-1953), prominent Hartsville agriculturalist and businessman who was a plant breeder with the Coker Pedigreed Seed Company and later founder and president of the Humphrey-Coker Seed Company and the Hygeia Dairy.

Northrup-King: Northrup-King Seed Company was founded in Minneapolis, Minnesota in 1896, and was based there until it was acquired and moved to Golden Valley, Minnesota in 1986.  It is now a division of Syngenta.

Shaker Seed Company: The Shaker Seed Company was an American seed company that was owned and operated by the Shakers in the eighteenth and nineteenth century.  In the latter part of the eighteenth century, many Shaker communities produced several vegetable seed varieties for sale.  The company created innovations in the marketing of seedsincluding distributing, packaging and catalogingall of which changed the horticultural business model forever.

L. Teweles Seed Co.: L. Teweles Seed Co. was created in 1865 and became the second largest forage seed company in North America, only behind Northrup-King.  Over the years the company had many of the industry’s firsts including, putting seed in a handy sized bags, bulk seed handling, dying bluegrass seed blue and radio advertisings.  The firm was a family run business over 4 generations until it was later acquired by Kent Feeds, Inc. of Muscatine, Iowa in 1972 for an undisclosed amount.

Supporting paragraphs: Northrup-King Syngenta
Answer: Novartis