Morphological characteristics:
Turnip is as high as 100 cm; The root tuber is fleshy, spherical, oblate or oblong, with white, yellow or red skin, and the root tuber is fleshy and white or yellow, without spicy taste; The stem is erect, branched, slightly hairy at the lower part and hairless at the upper part.
The basal leaves are pinnate or compound, 20-34 cm long, with large top lobes or lobules, wavy or shallow edges, about 5 pairs of side lobes or lobules, and small downward gradient, with a few scattered bristles above and white sharp bristles below; Petiole length 10- 16 cm, lobulated; The middle and upper cauline leaves are oblong-lanceolate, 3- 12 cm long, hairless, with frosting, wide heart-shaped base, at least half-embracing, and sessile.
Racemes are terminal; Flowers 4-5 mm in diameter; Pedicel length 10- 15 mm; Sepals oblong, 4-6 mm long; Petals are bright yellow, oblanceolate, 4-8 mm long, with short claws.
Silique linear, 3.5-8 cm long, fruit petal with 1 obvious midvein; Beak length10-20mm; The pedicel is 3 cm long. The seeds are spherical, about 1.8 mm in diameter, light yellow-brown, black near the hilum, and have fine reticular nests. The flowering period is from March to April, and the fruiting period is from May to June.
Breeding method:
Land selection: Choose sandy loam with flat terrain, convenient irrigation and drainage, rich in organic matter and good water and fertilizer conservation. Cruciferae vegetables are not suitable for the previous crop. Clean the land after the previous crop is harvested, plow early and turn deep, and the tillage depth is 18-22 cm.
Soil preparation and fertilization: before sowing, carefully prepare soil, apply organic fertilizer as base fertilizer, and plough deeply appropriately. Combined with soil preparation, 2-3 cubic meters of high-quality decomposed organic fertilizer will be applied to 667 square meters. Sufficient organic fertilizer can make the fleshy roots of Wuqing smooth, correct in shape, good in quality and high in yield. The quality of soil preparation reaches the standard of "moisture content, evenness, uniformity, looseness, fragmentation, cleanness and straightness".
Sowing method: the seeds are selected from local Wuqing seeds in Keping County and sowed mechanically. Sowing time is in the middle of August, the plant spacing is10-15cm, the sowing depth is1-2cm, the soil is covered after sowing1-2cm, and 667m2 is sowed with 0.3kg of turnip seeds mixed with 0.4kg of dry sand. 667 square meters with 900- 1 100 plants.