What are the high-quality rice varieties?

Rice has a long history of planting in China, it can be said that it has experienced many revolutions, such as dwarf, three-line, two-line and so on. At present, the planting area of rice is widely distributed in China, and all places have their own characteristics of rice varieties. of course, in recent years, some new rice varieties also emerge one after another, which is also the result of the development and progress of plant genetics and breeding. So what are the high-quality rice varieties? Let's take a look at it.

1. Yueliangyou 3189 (national first trial in 2019)

Characteristics: Yueliangyou 3189 is an indica two-line hybrid rice, mainly distributed in the middle and lower reaches of the Yangtze River, the whole growth period is 133.3 days. The plant height is 125.5 cm, the ear length is 24.4cm, the number of effective panicles per mu is 167000, the seed setting rate is as high as 84.9%, and the 1000-grain weight is 26.8g. In addition, in terms of resistance, medium resistance to rice blast, high susceptibility to brown planthopper, strong heat tolerance at heading stage, and head rice rate was 60.3%.

Yield performance: in the 2018 production experiment, the average yield per mu was 640.06 kg, which was 3.69% higher than that of the control Fengliangyou 4. The average yield per mu was 595.24 kg in the regional trial from 2017 to 2018.

2. Spring Liangyou Huazhan (national first trial in 2019)

Characteristics: Chunliangyou Huazhan is also an indica two-line hybrid rice, which is mainly planted as double-cropping late rice in South China, with a full growth period of 112.1 days. The plant height is 108.3 cm, the ear length is 23.4cm, the number of effective ears per mu is 157000, the seed setting rate is 81.6%, and the 1000-grain weight is 25.8g. In addition, in terms of resistance, the comprehensive index of rice blast in two years was 3.0 and 3.3 respectively, the highest loss rate of panicle neck blast was grade 3, bacterial blight was grade 5, and the rate of head rice was 63.1%.

Yield performance: in 2017, the average yield per mu was 507.99 kg, 8.23% higher than that of the control; in the 2018 production test, the average yield per mu was 530.51 kg, 8.00% higher than that of the control Boyou 998.

3. Yangxianyou 919 (Su Shendao 20180001)

Characteristics: Yangxianyou 919 three-line hybrid medium indica rice with a full growth period of 148.3 days. The plant height is 127.6 cm, the effective panicle is 148000 per mu, the number of filled grains per panicle is 160.5, the seed setting rate is 84.0%, and the 1000-grain weight is 30.9g. In terms of disease resistance, it was moderately resistant to rice blast, moderately susceptible to bacterial blight, susceptible to sheath blight, and the rate of head rice was 66.7%.

Yield performance: participated in the regional trial of Jiangsu Province from 2015 to 2016, the average yield per mu in two years was 705.8 kg, which was 8.3% higher than that of the control Ⅱ You084.

4. Zhaoyou 5431 (Eshendao 2015010)

Characteristics: Zhaoyou 5431 is a late-maturing indica mid-rice variety with moderate plant type, high plant and strong tillering ability. In addition, the leaf color is dark green, the ear layer is neat, the grain is long, the Lemma tip is colorless, and the mature phase is better in the later stage. The whole growth period is 142.1 days, the total number of grains per panicle is 188.5, the number of filled grains per panicle is 157.6, the seed setting rate is 83.6%, and the weight of 1000 grains is 26.33g. The disease was identified as rice blast comprehensive index 3.5, ear blast loss rate of the highest grade 5, moderately susceptible rice blast and so on.

Yield performance: the average yield per mu in the two-year regional trial was 642.34 kg, which was 7.34% higher than that of the control Qyou 6. Among them: 629.00 kg per mu in 2013, 7.81% higher than Q you 6, and 655.67 kg per mu in 2014, 6.90% higher than Q you 6.

The above is the introduction of some high-quality rice varieties and other related content, specifically aimed at its characteristics and yield performance of the two aspects of analysis, I hope you can have a clear understanding of these high-quality rice varieties.

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