Abstract
‘Matterhorn’ (Reg. No. CV‐1151, PI 687896) hard white winter waxy wheat (Triticum aestivum L.) was developed cooperatively by the USDA‐ARS and the Nebraska Agricultural Experiment Station and released in 2018. Matterhorn, a sibling of the hard red waxy cultivar Mattern, has white grain color and waxy (amylose‐free) endosperm starch. It was released primarily for its unique end‐use quality attributes and for grain yield competitiveness with currently grown Nebraska‐adapted cultivars. The waxy starch is conditioned by the presence of three naturally occurring mutations that eliminate production of the enzyme granule‐bound starch synthase. Granule‐bound starch synthase synthesizes amylose in typical wheats and other cereal crops. Matterhorn (tested as NX04Y2107W) was selected from the heterogeneous red/white‐seeded experimental line NX04Y2107 derived from the cross NW98S061/99Y1442.
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