Qingshu 4, a New Potato Variety
Qingshu No. 4 is a new potato variety crossed by Niutou as female parent and Di Xiri as male parent, which is a crop of Qinghai Academy of Agricultural and Forestry Sciences. It was examined and approved by Qinghai crop Variety approval Committee in 2003.
1. Characteristics. It is a late-maturing variety with a plant height of about 110 cm and a stem diameter of 1.4 cm. The number of main stems is 2-4 and the number of branches is 3-5. The yield per plant is 1.26 kg, the number of tubers per plant is 7-11, and the weight of a single piece is about 130 grams. Tuber starch 17.12%, vitamin c 24.6 mg / 100 g, crude protein 1.86%, reducing sugar 0.538%, steamed taste good. It is resistant to drought, cold, salt and alkali, and the potato is resistant to storage. More resistant to late blight, ring rot, black shank, mosaic virus. The average yield was 2912 kg / mu, 35.32% higher than that of the control Xiazhai 65. It is suitable for planting in paddy fields and mountainous areas in Qinghai Province, and in the primary cropping area in the north of China.
2. Main points of cultivation. Before sowing, choose disease-free, injury-free 30-50 grams of young strong potato as seeds, whole potato sowing. The suitable sowing date is mid-April, sowing rate is 150,200kg / mu, row spacing is 70cm, plant spacing is 25-30cm, paddy field density is 3000 plants / mu, dry land density is 4000 plants / mu. Flat planting and wide row wide ridge and equal row spacing planting can also be carried out in paddy field areas with high heat, with wide row 80-100 cm and narrow row 25-30 cm. Low-calorie mountain areas can be planted with row spacing such as ridging.
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A New Potato Variety-Tongshu 20
Characteristics: the plant type is erect, the plant height is 70-95 cm, the stem is stout, the branch is many, the average main stem per plant is 2.3. The leaves are dark green with luxuriant branches. Corolla white, natural and medium. The tuber is round, the yellow skin is yellow, the potato skin is smooth, the bud eye is medium depth, the tuber is concentrated, the tuber size is medium, the uniformity is high, and the average tuber per plant is 4.7. It is a mid-and late-maturing variety, which is about 110 days from emergence to maturity. The growth potential is strong and the tuber expands rapidly, but the hollow phenomenon is easy to appear in the case of rainfall or uneven irrigation during the expansion period. Drought resistance and barren tolerance
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A new potato variety-Longshu No. 3, No. 5, No. 6
1. Variety introduction Longshu 3 (formerly code 161-2) is a new high starch potato variety selected by the grain breeding method of Gansu Academy of Agricultural Sciences. It was approved by Gansu crop Variety approval Committee in 1995 and won the second prize for scientific and technological progress in Gansu Province in April 2002. The variety matured in the middle and late stage, and the growth period (from emergence to maturity) was about 110 days. The starch content of potato chips is 20.09-24.25%, which is 3-5% higher than that of the general mid-late maturing varieties.
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