Yueyou No. 5 is a high-yield, high-quality, early-maturing, and rust-resistant new peanut variety developed through crossbreeding between Guangdong Oil 116PI381622 F1 Yueyou 116 and Guilin 28ICG 8641, both bred by the Guangdong Academy of Agricultural Sciences. It was officially certified in Guangdong Province, demonstrating its value for local farmers.
This variety was tested in regional trials across Guangdong from 1996 to 1997. It achieved an average yield of 268.3 kg per mu, surpassing the control variety Shanyou 523 by 7.5 kg, with a 2.89% increase. In comparison to Yanyou 523, it produced 193.2 kg per mu, showing a significant 9.58% improvement. The plant exhibits strong vigor, with an upright and compact growth habit. The main stem reaches 55.4 cm in height, while the branches extend to 55.0 cm. It has good branching ability, with an average of 7.0 branches per plant, of which 5.2 are effective. The plant has 19.1 leaves on the main stem, and 7.5 stems at harvest time. The leaves are light green and of medium size.
Yueyou No. 5 shows strong resistance to diseases such as rust and leaf spot. Its fruit shape is neat, full, and uniform, with a full fruit rate of 75.3%. The peanut weight is 179.1 grams per bunch, with a 72% kernel rate and 52.1% oil content. It matures quickly, taking about 115 days when planted in spring and 110 days in autumn.
For cultivation, it is recommended to grow this variety in paddy fields rotated with dry slopes that are free from bacterial wilt. Sowing should be done at 20 cm by 23 cm spacing, with two seeds per hole, and five rows per acre, resulting in 20,000 to 23,000 seedlings per acre. Spring planting should occur around the time of the Awakening of Insects, while autumn planting should take place around the beginning of autumn. Before sowing, seeds should be treated with carbendazim to prevent disease.
For fertilization, apply 10 kg of urea, 5 kg of potassium chloride, 20 kg of superphosphate, and 750–1000 kg of organic fertilizer as base fertilizer. Within two days after sowing, herbicides should be used to control weeds. When the plants have 4–5 leaves, insect-repellent sprays should be applied. Cultivation should be done before flowering, and weak seedlings can be supplemented with 10 kg of compound fertilizer to promote healthy growth.
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