Features
Indica two-line hybrid rice variety. Planted as medium-season rice in the middle and lower reaches of the Yangtze River, the whole growth period is about 135 days, 1.2 days later than the control Fengliangyou No. 4. Plant height is 122.1 cm, ear length is 24.5 cm, effective ear number per mu is 171,000 ears, total number of grains per ear is 202.8 grains, fruit setting rate is 84.2%, and thousand-grain weight is 23.7 grams. Resistance: The comprehensive index of rice blast was 3.7 and 3.8 in the two years respectively, the highest level of ear neck blast loss rate is 5, bacterial leaf blight is 5, brown planthopper is 9, moderately susceptible to rice blast, highly susceptible to brown planthopper, and moderately susceptible to bacterial leaf blight.
Main indicators of rice quality
The brown rice rate is 80.2%, the whole polished rice rate is 67.1%, the grain length is 6.5 mm, the length-width ratio is 3.1, the chalkiness is 3.5%, the transparency is level 2, the alkali elimination value is level 5.0, the gel consistency is 64 mm, and the amylose content is 20.4%, meeting the third level of the agricultural industry’s “Quality of Edible Rice Varieties” (NY/T593-2013) standard.
Production performance
In 2019, it participated in the regional test of the late-maturing group of medium-grain rice in the middle and lower reaches of the Yangtze River, with an average yield of 647.2 kg per mu, a 4.1% increase over the control; the average yield per mu in the 2020 continued test was 615.4 kg, a 4.4% increase over the control; the average yield per mu in the two-year regional test was 631.3 kg, a 4.2% increase over the control; the average yield per mu in the 2021 production test was 614.3 kg, a 4.4% increase over the control. Suitable areas This variety meets the national rice variety approval standards and has passed the approval. It is suitable for one-season medium-grain rice planting in the Yangtze River Basin rice areas of Hubei Province (except Wuling Mountain Area), Hunan Province (except Wuling Mountain Area), Jiangxi Province, Anhui Province, and Jiangsu Province, as well as the medium-grain rice areas of Zhejiang Province, the northern rice areas of Fujian Province, and the southern rice areas of Henan Province with light rice blast.
Test situation
One season of medium-season rice is planted in the middle and lower reaches of the Yangtze River. Generally, it is sown from late April to mid-May. The sowing rate for seedling field is 12.0 kg per mu, and the seed rate for field field is 1.0-1.5 kg per mu. The leaf age of water-raised seedlings is about 6.0 leaves, and the seedling age is controlled within 30 days. The spacing between planting and row is 20.0 cm × 26.7 cm, and more than 60,000 basic seedlings are planted per mu. Reasonable fertilization, heavy base fertilizer, early attack of seedlings; scientific water management to prevent lodging. Other field management, cultivation and harvesting measures are implemented according to the conventional methods of this type of variety. Focus on the prevention and control of diseases and insect pests such as the striped stem borer, rice leaf roller, rice planthopper, rice false smut, and rice blast.
