Daucus carota Tunisia

Traits evaluated: ANTHOCYANIN ROOT COLOR (ANTHRTCOL); HYPOCOTYL PIGMENTATION (HYPOPIG); MAXIMUM CORE SIZE (MAXCORESIZ); MAXIMUM STORAGE ROOT LENGTH (MAXSTRTLEN); MAXIMUM STORAGE ROOT WEIGHT (MAXSTRTWGT); MEAN CORE SIZE (MEANCORESZ); MEAN STORAGE ROOT LENGTH (MEANSRTLEN); MEAN STORAGE ROOT WEIGHT (MEANSRTWGT); MINIMUM CORE SIZE (MINCORESIZ); MINIMUM STORAGE ROOT LENGTH (MINSTRTLEN); MINIMUM STORAGE ROOT WEIGHT (MINSTRTWGT); ROOT GREENING (ROOTGREEN); ROOT PHLOEM CAROTENOID COLOR (ROOTPHLOEM); ROOT SKIN PIGMENTATION / COLOR (RTSKINPIG); ROOT XYLEM CAROTENOID COLOR (RTXYLEMCOL); NATURE OF STORAGE ORGAN (STORORGAN); STORAGE ROOT DIAMETER (STORRTDIAM); STORAGE ROOT SHAPE (STORRTSHP); STORAGE ROOT SURFACE (STORRTSURF); STORAGE ROOT TIP SHAPE (STRRTTPSHP)

Evaluation location: Iowa, United States. Method: Daucus direct seeded into two 4-foot rows 8 inches apart in NCRPIS Farm Greenhouse-3 sandbox measuring 8 ft. x 4 ft. x 2 ft (l x w x h) and filled to 20-inch depth with sand. Sandbox was watered as needed and seedlings fertilized with a liquid fertilizer twice weekly. Seedlings were thinned to 2 to 3 -inch spacing. Roots were carefully dug from the sand for notes/images after two to four months (or sooner if plants began to bolt). Root characterization notes/images were recorded on plants between 50 and 130 days after planting (DAP); average was 92 DAP. Notes/images recorded on 10 roots per accession.