Jingliangyou 8612
Jingliangyou 8612
Approved by the state in 2019, No.: guoshendao 20196051 (information source: Announcement No. 224 of the Ministry of agriculture and rural areas of the people's Republic of China)
Applicant: Yuan Longping Agricultural Hi Tech Co., Ltd
Breeders: Yuan Longping Agricultural High Tech Co., Ltd., Hunan Yahua seed industry academy research institute, Hunan Longping high tech Seed Industry Research Institute Co., Ltd., Anhui Longping high tech (Xinqiao) Seed Industry Co., Ltd
Variety source: jing4155s × Huahui 8612
Characteristics: two line indica hybrid rice. In the middle and lower reaches of the Yangtze River, the whole growth period is 134.0 days, 2.3 days longer than that of Fengliangyou 4. The plant height was 124.0 cm, the ear length was 26.3 cm, the effective panicles per mu were 160000 ears, the total number of grains per panicle was 267.3 grains, the seed setting rate was 85.1%, and the 1000 grain weight was 24.8 G. Resistance: the comprehensive index of rice blast in two years were 2.8 and 3.2 respectively, the highest loss rate of neck blast was 5 grades, bacterial blight was 7 grades, brown planthopper was 9 grades, and heat resistance was 3 grades at heading stage; moderately susceptible to rice blast, susceptible to bacterial leaf blight, highly susceptible to brown planthopper, and strong heat resistance at heading stage. Main indicators of rice quality: head rice rate 62.8%, chalky grain rate 11%, chalkiness degree 1.8%, amylose content 15%, gel consistency 88 mm, length width ratio 3.0, reaching the agricultural industry "edible rice variety quality" standard grade 3.
Yield performance: in 2017, the average yield per mu was 625.29kg, which was 5.95% higher than that of Fengliangyou 4; in 2018, the average yield was 637.57 kg, 2.19% higher than that of Fengliangyou 4; the average yield per mu was 631.43 kg, 4.07% higher than that of Fengliangyou 4 in two years; the average yield was 653.95 kg in 2018 The yield of Fengliangyou 4 was 5.94% higher than that of Fengliangyou 4.
Key points of cultivation techniques: in the middle and lower reaches of the Yangtze River as a season of mid season rice. 1. According to the local ecological conditions, early sowing should be carried out in good time, with 0.75 kg of seed per mu in field and 8-10 kg per mu in seedling field, with sparse sowing and even sowing to cultivate strong and multi tiller seedlings. 2. The leaf age of seedlings is about 5.5 leaves, and the seedling age is controlled within 30 days; the planting specification is 20 cm × 26.5 cm, with 12500 holes per mu, 2 grains per hole, and more than 60000 basic seedlings per mu. 3. The level of fertilizer needed is medium, and the fertilization method of heavy base fertilizer, timely topdressing tiller fertilizer, and late stage seedling and ear fertilizer application should be adopted. In general, 11-12kg pure nitrogen was applied per mu, and the ratio of N, P and K was 1:0.5:0.7, and the base fertilizer (70% of nitrogen fertilizer was used as the base fertilizer and 30% as the topdressing), and the tillering fertilizer was applied in the early stage. After transplanting, deep water should be used to promote tillering in tillering stage, enough seedlings should be dropped into the field in time, from booting stage to heading stage, there should be shallow water on the field surface during the filling stage, so as to avoid premature aging and quality deterioration. 4. Insist on Soaking Seeds with strong chlorine. In the seedling stage, we should pay attention to the control of rice planthopper to prevent the southern black streaked dwarf disease; in the field, we should do a good job in the control of rice blast, rice planthopper, false smut, sheath blight, bacterial blight, southern black streaked dwarf disease, and borers. The control of rice blast should be paid more attention to in the serious rice blast area.
Approval opinion: the variety meets the national rice variety approval standard, and has passed the examination and approval. It is suitable for planting one season mid season rice in Hubei Province (except Wuling Mountain Area), Hunan Province (except Wuling Mountain Area), Jiangxi Province, Anhui Province and Jiangsu Province, as well as medium rice area of Zhejiang Province, northern rice area of Fujian Province and light rice blast area of Southern Henan Province.
