Productivity and Root-Crop Quality of Lithuanian Carrot (Daucus Sativus Röhl.) Breeder Lines

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Productivity and Root-Crop Quality of Lithuanian Carrot (Daucus Sativus Röhl.) Breeder Lines

The investigation was carried out at the Lithuanian Institute of Horticulture in 2004-2006. Nine promising Lithuanian breeder lines of carrots: 2030, 2046, 2049, 2056, 2065, 2075, 2084, 2091, 2095, and hybrid Svalia F1were included in our experiment. The following sets of parameters were estimated: plant phenology, morphology (length, diameter and mass of root), yield and biochemical composition (carotene, dry soluble matter, total sugar, nitrates). Carrots were cultivated in sandy or sandy-loam Calc (ar)i - Epihypogleyc Luvisols (LVg-p-w-cc), on a profiled surface in four replications. Multiyear results show that carrot root-crop quality depends not only on genotype but also on soil type and growing conditions. In Lithuania the most popular hybrid root-crops have the same shape, about 18-25 cm length and 3.6-3.9 cm diameter. Thus, for our experiment we chose breeder lines meeting to these popular standards. Breeder lines 2030 and 2075 had the best root shape: root length 18.0-21.0 cm and diameter 3.7-3.9 cm. During three years of observation, we found that breeder line 2056 carrots were large (root mass 172.7 g). Yield analysis showed that the highest total and marketable yield was achieved by breeder line 2030 and Svalia' F1. Carrot breeds 2030, 2091 and Svalia' F1had the best biochemical composition.

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