Quality and Marketable Yield of Baby-style Carrots as Affected by Root Size, Population Density and Lines of Seed/Bed

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  • 1 Vegetable Improvement Center, Department of Horticultural Sciences, Texas A&M University, College Station, TX 77845-2133
  • 2 Asgrow Seed Company, 7202 Portage Road, DeForest, WI 53532

Baby-style carrot Daucus carota Mill. cv. Caropak was studied under four population densities, three different numbers of lines per bed, and harvested under three root size harvest parameters in the Rio Grande Valley of Texas. Four phases in the baby-style carrot process were evaluated. Length of the roots at harvest and projected values for total waste and marketable yield were estimated. Length was affected by root size at harvest, the most desirable root length occurred when harvested at 25%-35% roots diameter >2 cm. The longer roots (16.55 cm) were in the treatments with 6 seed lines per bed and 197 plants/m2. Population density affected the fresh and cut weight in the baby-style carrots process with the highest weight at 321 plants/m2. Percent of cut waste was the same at the three-root size at harvest with 21.65% of crowns and tips cut. The percent of graded waste was lowest when harvested at the biggest root size, 14.23% and four seed lines per bed produced the highest waste with 18.14. Seed lines per bed affected the quality of the roots in the graded step. Based on a 40% peeling waste projection the lowest total waste was estimated at 59.69% and the highest projected marketable yield of 19.4 t/ha of final product when roots were harvested using the 25%-35% root diameter parameter. Root size at harvest is the main factor affecting projected marketable yield of baby-style carrots in South Texas.

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