Introduction to the Characteristics of the Liaoning Scallion No. 1 Welsh Onion Variety

Variety source: Liaoning Scallion No. 1 is a new Welsh onion line bred by crossing Dongling as the female parent and Sanyeqi as the male parent, followed by bulk selection and individual plant selection. Characteristics: Liaoning Scallion No. 1 grows quickly and has strong growth vigor, making it an ideal variety for Welsh onions following wheat and for Welsh onions following vegetable crops such as potatoes. This onion has good market quality, a suitable blanched stalk length, is compact, has fine tender texture, and the blanched stalk has a relatively thick transverse diameter. This variety has relatively strong resistance to viral disease, downy mildew, and rust, and is relatively stable in yield. The yield per mu is generally 3000-4000 kg, with the highest reaching 6000 kg. The plant height is about 120 cm, the blanched stalk is 40-50 cm long, the transverse diameter of the blanched stalk is 3-4 cm, the leaves are dark green, the wax powder layer is relatively thick, the leaves are upright, and it is relatively wind-resistant. During the growth period, there are 4-6 functional leaves (evergreen leaves). The plant does not tiller, and the maximum fresh weight per plant can reach 700 g. Cultivation points: 1. Raising seedlings: Liaoning Scallion No. 1 can be grown for seedlings in autumn or spring. Welsh onions following wheat and other crops that are planted relatively late (mid-to-early July in Liaoning) should be raised as spring seedlings. Spring seedling raising should be appropriately sparse and early; the sowing rate per square meter should not exceed 3 g, and the sowing date should not be later than early April. After emergence, pay attention to controlling damage by soil pests. 2. Planting: Plant as early as possible; a row spacing of (65-70) x 5 cm is suitable. When planting, the onion seedlings should be uniform in size to facilitate later management. 3. During the growth period, earth up 2-3 times. The first and second earthing up can be done with a plow, and the last can be done by hand. In combination with earthing up, apply 30-50 kg of chemical fertilizer per mu as a topdressing. 4. During the growth period in the main field, use pesticides such as dimethoate to control damage to leaves by thrips, leafminers, and other pests.