Anhui Agricultural Science Bulletin >
2026 , Vol. 32 >Issue 7: 1 - 4
DOI: https://doi.org/10.16377/j.cnki.issn1007-7731.2026.07.001
Breeding and high yield cultivation techniques of japonica rice variety Wankenjing No. 9
Received date: 2025-06-09
Online published: 2026-04-14
This article summarized the breeding process, characteristics, and high yield cultivation techniques of Wankenjing No. 9. This variety was based on Wuyunjing No. 27 as the female parent and JN29 as the male parent, and was independently bred using the line breeding method for japonica rice. It was approved by Anhui Provincial Crop Variety Examination & Approval Committee in 2024 (Wanshendao 2024T007). The plant height and growth period of this variety are suitable; the rice quality meets the second-class edible rice standard of NY/T 593-2021 “Quality of Edible Rice Variety”; good anti overturning ability; the average yield of the 2-year regional trial is 9 850.5 kg/hm2. The key cultivation techniques include timely sowing (wet seedling cultivation from May 5-15, machine transplanting from May 15-25), soaking seeds with pesticides to prevent seed borne diseases, and applying “marriage medicine” before transplanting to enhance plant resistance; reasonably plant densely to ensure that the basic number of seedlings is between 900 000 and 1.62 million plants per hectare. Scientific fertilizer and water management, with a nitrogen phosphorus potassium ratio of 1∶0.2∶0.5, and water management using shallow water to promote tillering, sufficient seedling sun drying to control tillering, water retention during the booting and flowering period, and wet dry alternation irrigation in the later stage; comprehensive prevention and control of pests and diseases, using seed disinfection, agricultural measures, and chemical control, with a focus on preventing and controlling rice thrips, borers, planthoppers, and rice blast disease. Grass damage is treated with a combination of sealing and stem and leaf treatment to ensure high yields. This article provides a reference for the promotion and planting of this variety.
Key words: Wankenjing No. 9; variety breeding; rice yield; rice quality; cultivation techniques
Wu Tianci , Wang Longping , Liu Fen , Pan Qi , Zhang Jie , Zhao Xueyu , Wang Xiaodong , Wang Yifei . Breeding and high yield cultivation techniques of japonica rice variety Wankenjing No. 9[J]. Anhui Agricultural Science Bulletin, 2026 , 32(7) : 1 -4 . DOI: 10.16377/j.cnki.issn1007-7731.2026.07.001
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