The plant height of this variety is about 1 10cm, the plant type is compact, the tillering ability is moderate and strong, the panicle type is large and the panicle is erect. The ear length is about 15 cm, the total number of grains per ear is 140~ 150, the seed setting rate is over 90%, and the 1000-grain weight is 25~26g. The plants grow beautifully, with fast filling speed and good maturity. Inoculation identified resistance to stripe virus, moderate resistance to bacterial leaf blight, ear neck blast and sheath blight. The whole growth period is about 165 days, which is 4-5 days later than the control Wuyunjing 7. It belongs to middle-maturing late japonica type and is suitable for planting in southern Jiangsu and Shanghai under medium and high fertility conditions.
The outstanding advantage of Nanjing 46 is its excellent rice quality. According to the physical and chemical indexes of rice detected by the Food Quality Testing Center of the Ministry of Agriculture in 2007, the head rice rate was 66.8%, the chalkiness was 20.0%, the chalkiness was 2.4%, the gel consistency was 83.0 mm, and the amylose content 15.0% reached the national second-class high-quality rice standard. This variety combines the fragrance of female parent Wuxiangjing 14 and the soft rice characteristics of male parent Kanto 194. Rice is crystal clear, soft and smooth, elastic, cold but not hard, and has excellent eating quality. In 2006, Jiangsu Academy of Agricultural Sciences won the first prize in the 2007 Jiangsu High-quality Japonica Rice New Variety (Line) Tasting Meeting and the High-quality Japonica Rice Tasting Meeting, and was praised as "the best rice in Jiangsu". In August, 2007, Nanjing 46 won the Excellence Award at the National Quality Japonica Rice Taste Evaluation Conference organized by Shenyang, ranking seventh with the total score of 8 1.5. It is the only high-quality japonica rice variety in southern China that has entered the top ten. It is only 4.2 1 minute lower than Japanese native "Yue Guang" rice, and it is 1 1.5 minute higher than Wu Yujing No.3, which is recognized by the market as having good taste and quality. 20 10 was rated as "high quality edible japonica rice" in China.
This variety was declared for national protection of new plant varieties in 2007, with the application number of 20070298. October, 2007 1 65438+1October1day, the Ministry of Agriculture issued the Announcement on the Protection of New Varieties of Agricultural Plants, with the announcement number CNA004059E. 20 10 obtained the new variety right, and the variety right number was CNA20070298.x