1, Yinguan 75: A new hybrid rice variety bred by Shanghai Changzheng Vegetable Seed Company. This variety has strong disease resistance, cold tolerance and black rot resistance. The plant shape is upright, the plant height is 65cm and the spreading degree is 66cm. The leaves are wide and lanceolate, and the largest leaf is 58.4 cm long and 23.9 cm wide. It is called' dark green', with flat and clear veins, light green, serrated edges and smooth leaves. There is thick wax. The flower ball is semicircular, with a height of 10.3 cm and a transverse diameter of 15.7 cm. The color is white, hairless, the meat is compact and delicate, and the weight is 1 kg. Average yield per mu 1300- 1500 kg.

2. Xinyi hybrid 100 day: the first hybrid variety bred by Shanghai Chongming Cauliflower R&D Center. The plant height of this variety is 65-70cm, and the spreading degree is 70-75cm. The leaves are dark green, oblong, the largest leaf is 55-60 cm long, the leaf surface is medium waxy, the petiole is short, the internodes are tight, and the heart leaves are twisted to protect the ball. The flower ball is highly round, 30% off, compact and white, and good in commodity. The weight of a single ball is about 1.5 kg, the maximum ball weight is more than 3 kg, and the yield per mu is generally more than 2200 kg.

3. Xinyi hybrid 120 days: a new hybrid variety bred by Shanghai Chongming Cauliflower R&D Center. The plant height of this variety is 50 cm and the spreading degree is 60-70 cm. The leaves are dark green, rectangular, the largest leaf is 48-55cm long, the leaf surface is medium waxy, the petiole is short, the internodes are particularly tight, and the heart leaves protect the ball. The flower ball is semicircular and three-fold, small and white, and good in commodity. The weight of a single ball is about 1 kg, the maximum ball weight is more than 2.5 kg, and the yield per mu is generally more than 2200 kg.

4. Wangxin late-maturing variety: Chongming local variety. Strong cold tolerance, more resistant to black rot and downy mildew. The plant is short, evenly growing and compact, with a plant height of about 60 cm and a spreading degree of 75 cm. There are many outer leaves, obvious petioles, wrinkled leaves, dark green leaves and much wax. Head height 14cm, transverse diameter 17cm. It is round, clean and white, with delicate flowers and good commodity. The weight of single ball is 0.9- 1. 1 kg, and the average yield per mu is 1300 kg. The whole growth period is 240 days.

5. Early and slow species: Chongming local species. Strong cold tolerance, strong resistance to black rot and downy mildew, and medium quality. The plant is erect, with tall foliage, plant height of about 90 cm, spreading degree of 80 cm, and more outer leaves. The leaves are oval, 60 cm long and 20 cm wide, with wavy edges, slightly wrinkled leaves, dark green leaves, heavy wax and green and white veins. The flower ball is round, with a diameter of 22 cm and thick flower grains. The weight of single ball is 1.25- 1.5 kg, the ball is yellow and white, and the average yield per mu is 1000- 1500 kg. □