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Introduction to Potato Variety Mengshu No. 9, a High-Starch Cultivar

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Medium-maturing variety, with a growth period of about 100 days. Tubers are round, with yellow skin and yellow flesh, shallow eyes, and concentrated tuber set; each plant sets 8-12 tubers, with large and medium tubers accounting for more than 85%, good eating quality, and a starch content of 18.7%. The tubers have strong storage tolerance, and the rate of tuber rot in the field is extremely low. It is a highly resistant type to late blight in the field, with mild degeneration, slight susceptibility to leaf roll and bunch top, and a degenerated plant rate of less than 0.5%. Adaptability and yield: it can be planted in both irrigated and dry land, is tolerant of water and fertilizer, and is suitable for planting on slopes, sandy loam, and other well-drained plots. It is a high-yield, high-

Medium-maturing variety, with a growth period of about 100 days. Tubers are round, with yellow skin and yellow flesh, shallow eyes, and concentrated tuber set; each plant sets 8-12 tubers, with large and medium tubers accounting for more than 85%, good eating quality, and a starch content of 18.7%. The tubers have strong storage tolerance, and the rate of tuber rot in the field is extremely low. It is a highly resistant type to late blight in the field, with mild degeneration, slight susceptibility to leaf roll and bunch top, and a degenerated plant rate of less than 0.5%.

Adaptability and yield: it can be planted in both irrigated and dry land, is tolerant of water and fertilizer, and is suitable for planting on slopes, sandy loam, and other well-drained plots. It is a high-yield, high-starch variety, generally yielding 1500 kg per mu, with high yields reaching more than 2500 kg.

Key points of cultivation techniques: use virus-free seed potatoes. Planting density: 3800-4000 plants.

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