Suitable for sowing spinach varieties in summer

The selection criteria for summer spinach varieties are: late summer sunshine, long-term heat, strong growth, and rapid growth. The types of summer spinach that are suitable for cultivation in various regions of the country are as follows.
All-round spinach is introduced from Hong Kong, which is heat- and cold-resistant, has wide adaptability, is strong in winter, and has late bolting. It grows fast and can grow rapidly at temperatures between 3°C and 28°C. The plant stands upright and the plant height is 30 to 35 cm. 7 to 9 leaves, each weighing about 100 grams. Dark green leaves, thick and fat, smooth leaves, 30 to 35 cm long, 10 to 15 cm wide, less astringent, soft texture. 80 to 110 days of growth, resistance to downy mildew, anthrax, and viral diseases.
Huasheng No.1 was selected by the Huazhong Agricultural University as a generation of hybrids. Precocity, growth period 40-60 days, plant half-upright, plant height 30 cm. Ye Ji-shaped, with a deep lack of carved pair. The tip is blunt, the leaves are hypertrophic and the quality is good. High temperature, resistance to downy mildew and virus disease, high yield.
Guangdong spinach leaf spinach is imported from Guangdong. The seed has no thorns, its leaves are oval, it has strong heat-resistance, it grows fast and it is not tolerant to cold. It must be collected before the cold arrives.
The 1st hybrid produced by Shanghai Agricultural College on the 1st. The seeds are thorny, the plants are half open, the leaves are arrow-shaped, and the leaves are large and hypertrophic. They grow rapidly and are more resistant to high temperatures. They are sown in high temperatures and rainy seasons to produce seedlings and preserve seedlings. The seed has a long period of dormancy, and the germination rate of the new seed under direct high temperature is not high, and can be harvested 30 days after sowing.
Spring and autumn leaves are introduced from Japan by Shanxi Province. The plants are robust, semi-vertical, and leaves clustered. The leaves are oblong. The tips are blunt, and the leaves are hypertrophic. The mass per plant is 200 grams. The tender leaves are weighted and the single leaf weight is 20 grams. Astringency, excellent quality. The disease resistance is strong, heat resistance, and convulsions are relatively late. The growth period is about 10 days longer than that of ordinary round-leaved spinach.
The late-leaf large leaf was selected by the vegetable research of Shanxi Agricultural University, and the growth period was more than 50 days. Plant height 25 cm, height 50 cm. Broad leaves, broad arrow-shaped, apex rounded, 32 to 40 cm long, 14-18 cm wide, very few fibers, seeds without thorns, convulsions 15 to 20 days later than the general species, generally more than 2,500 kilograms per mu.

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