Liangyou 106

Approval number: National Approved Rice 20196113

 

Main traits of the variety:

 

Indica two-line hybrid rice variety. The mid-season rice planted in the middle and lower reaches of the Yangtze River has a full growth period of 130.9 days, which is 2.2 days shorter than the control Fengliangyou No.4. The plant height is 116.6 cm, the ear length is 24.7 cm, the effective ear number per mu is 176,000 ears, the total number of grains per ear is 202.4, the seed setting rate is 84.7%, and the thousand-grain weight is 23.6 grams. The main indicators of rice quality: the whole rice rate is 56.7%, the chalky grain rate is 7.3%, the chalkiness is 1.5%, the amylose content is 15.7%, the gel consistency is 69.3 mm, and the aspect ratio is 3.2.

 

Adaptability:

 

Participated in the middle and lower reaches of the Yangtze River in the late-maturing area test of mid-indica in 2017, with an average yield of 643.0 kg per mu, an increase of 10.1% compared to the control Fengliangyou No. 4; the test continued in 2018, with an average yield of 652.1 kg per mu, an increase of 3.3% compared with the control Fengliangyou No. 4 %; The average yield per mu in the two-year regional test was 647.6 kg, which was an increase of 7.8% over the control Fengliangyou No. 4; in the production test in 2018, the average yield per mu was 638.6 kg, which was an increase of 7.8% compared with the control Fengliangyou No. 4. Resistance: The comprehensive index of rice blast in two years was 3.04 and 4.3 respectively. The loss rate of ear neck blast was the highest grade 5, bacterial leaf blight was grade 7, brown planthopper was grade 9, and the heading stage heat resistance was grade 1; moderately susceptible to rice blast, susceptible Bacterial blight, high susceptibility to brown planthopper, strong heat tolerance at heading stage.

 

Main cultivation measures:

 

1. The sowing period should be from mid-April to mid-May; the seedling amount for seedling transplanting in the field is about 0.75 kg, machine transplanting is about 1.5 kg, and the seedling age is 20-30 days;

 

2. Reasonably close planting, planting 16 to 18,000 holes per mu, inserting 1 to 2 seedlings per hole, and the effective number of ears per mu is about 180,000;

 

3. Reapply base fertilizer, early tiller fertilizer, combined application of nitrogen, phosphorus and potassium, increase potassium fertilizer, avoid partial application of nitrogen fertilizer in later period. Adopt the irrigation method of "planting seedlings in shallow water, live trees in a small amount of water, tillering with thin water, deep water heading, and dry and wet in the later stage" to ensure that the seedlings fall into the water and dry the field in time to control the seedlings;

 

4. Pay attention to timely control of rice blast, sheath blight, bacterial leaf blight, rice smut, stem borers, rice planthoppers and other diseases and insect pests.

 

Suitable planting area:

 

It is suitable for rice in the rice areas of the Yangtze River valley in Hubei Province (except Wuling Mountain), Hunan Province (except Wuling Mountain), Jiangxi Province, Anhui Province, Jiangsu Province, the middle rice area of ​​Zhejiang Province, the northern rice area of ​​Fujian Province, and the rice area of ​​southern Henan Province. Planting mid-season rice in areas with mild blast disease.