1964 W93Ay, W93Bx Inbred, brown anther sterile Derived from `Royal Chantenay'.

Sterility derived from `Tendersweet'

obtained from J.E. Welch, Univ.

California-Davis.
1964 Hybrid Gold F1 hybrid, large deep orange colored roots W93A x Wissyn 33
1964 Wissyn 5 Synthetic, long, large wedge-shaped root, increased carotene content Derived from `Kieler's Rote'
1964 Wissyn 6 Synthetic, medium length wedge-shaped root, good eating quality Derived from a cross of inbred lines extracted from `Kieler's Rote' and `Royal Chantenay'
1964 Wissyn 33 Synthetic, medium length wedge-shaped root Derived from inbred lines extracted from a breeding line and the varieties `Kieler's Rote' and `Tendersweet'
1964 Wissyn 171 Synthetic, long, tapered shape with tapered tip Derived from inbred lines extracted from `Yellow Belgian' and `Imperator'
1964 Wissyn 173 Synthetic, similar to Wissyn 171 Derived from inbreds extracted from `Imperator'
1971 W77Cw Inbred, Nantes shape, uniform color, combines well with W133 Derived from `Scarlet Nantes' (Northrup King)
1971 W133 A, W133B Inbred, uniform color, irregular cambium, low incidence of cracking, smooth exterior, uniform interior color Derived from a single plant of Wissyn 33
1971 W204C Inbred, large diameter, deep orange color Derived from a pollination cage containing 10 high-color lines. The female parent was obtained from No. 4 Sib-bulk Mass. This sythetic was derived partially from `Danvers 126' materials developed by the Campbell Soup Company
1971 Lucky Gold F1 hybrid, Nantes shape W133 x W77C
1971 Danvers Gold F1 hybrid, Danvers shape W133 x W204C
1988 W255A, W255B Inbred, excellent color and flavor Derived from the synthetic population RZT75v selected for resistance to Rhizoctonia
1988 W259A, W259B Inbred, excellent color and flavor Derived from the synthetic population ARL76 v
1988 W266Cu Inbred, excellent color and flavor, S cytoplasm Derived from the inbreds W239 v and W255 and the hybrid `Sytan'
1988 Lucky B F1 hybrid, lower in terpenoids, carotene level twice that of Scarlet Nantes, excellent flavor W259 x W266
1988 Dan D F1 hybrid, low in terpenoids, carotene level twice that of Scarlet Nantes, excellent flavor W255 x W266
1994 WAY271B Inbred, aster yellows resistant, deep orange color, moderate resistance to foliar blights Derived from an aster yellows-tolerant selection from the OP cultivar `Gold King' crossed with the synthetic AYSYN83 v followed by recombination with selections from AYSYN83.
1994 WAY272C Inbred, aster yellows resistant, good resistance to foliar blights Derived from an aster yellows tolerant selection of an inbred line derived from the hybrid W33 x W266, crossed with AYSYN83
1994 WAY273C Inbred, aster yellows resistant, combines well for color, smooth exterior, good eating quality Derived from an aster yellows tolerant selection of Scarlet Nantes crossed with AYSYN83 followed by a cross with the inbred line W262 v

zDescriptions were compiled from field notebooks, release notices sent to Agricultural Experiment Stations, and opinions of W.H. Gabelman. When color is mentioned, it refers to interior color. Aster yellows is caused by a mycoplamsa-like organism vectored by the aster leafhopper, Macrosteles fascifrons stal. Foliar blights (alternaria and cercospora) are caused by the pathogens Alternaria radicina Meier et al. or Alternaria dauci (Kuhn, Groves, and Skolko) and Cercospora carotae (Pess.), respectively. Rhizoctonia is caused by the fungi Rhizoctonia carotene Rader and Rhizoctonia solani Kuhn.

yAll lines with the designation `A' are petaloid sterile, with the exception of W93A, which is brown anther sterile.

xAll inbred lines with the designation `B' are maintainer genotypes.

wAll lines with the designation `C' are restorer gentoypes.

vThis inbred line, synthetic, or hybrid not released.