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Tongqing No. 5 and Tongqing No. 6 sunflower seeds are different in size and yield. According to the query of relevant information, the characteristics of Tongqing No. 5 sunflower are: plump, high yield, good plant growth, black background with white edges, and long conical seeds. It has great potential to increase production, so its price is also relatively expensive. Under termination conditions, one acre of Tongqing No. 5 sunflower seeds can produce about 280 kilograms. It has the characteristics of large seeds, thin skin, and plump grains. It is a legendary new sunflower variety. Tongqing No. 6 sunflower seeds weigh 18 grams per 100 seeds. The seeds are 1.8 to 2.0 cm long and about 0.7 cm wide. The yield per plant is about 120 grams. The kernel shell is brown with white edges and slightly striped. It has good commercial properties. The shell is thin and easy to eat. The kernel occupies 2/3 of the shell space. Above, the kernel yield rate is 56.9%, the seed protein is 15.83%, and the oil content is 16.2%.
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