Ii you 802 (Rice)
The main results are as follows: (1) Variety source: the young ear of (Minghui 63x Zigui) F2 selected by the Institute of Biotechnology and Nuclear Technology of Sichuan Academy of Agricultural Sciences was treated by Co--- γ-ray and the restorer line Chuanhui 802 bred by anther culture was used as male parent and II-32A as female parent.
(2) characteristics: the combination has compact plant type, strong tillering ability, prosperous growth, large panicle, 153.2-157.2 grains per ear, seed setting rate of 79.96-82.40%, 1000-grain weight of about 28 grams, brown rice rate of 80.0%, milled rice rate of 70.5%, head rice rate of 45.90%, processing and eating quality equal to that of the control, and appearance quality is better than the control. The resistance to rice blast, leaf blast grade 6 and neck blast grade 7, the resistance was better than that of the control. The ability of regeneration was lower than that of Shanyou 63.
(3) yield performance: in the regional test of Sichuan Province from 1994 to 1995, the average yield per mu was 578.8 kg and 556.66 kg, respectively, an increase of 1.3% and 3.93% over the control Shanyou 9, and an average yield of 567.73 kg per mu in two years, 2% higher than that of the control. 59%. In the 1995 production test, the average yield per mu of the five pilot projects was 604.60 kg, an increase of 8.74% over the control. The whole growth period is about 150 days, which is 2-3 days longer than the control.
(4) suitable planting areas: suitable for non-blast and non-ratoon rice areas of one-cropping mid-season rice in our province.
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Ii you 838 (Rice)
II you 838 is a rice variety introduced by Huayanhua seed Seedling Branch from Sichuan Institute of Nuclear Applied Technology. It was examined and approved by Hunan Variety approval Committee in March 2003. It is suitable for planting medium rice in the province. The plant height of this variety is about 120 cm. The stem is stout, the leaves of the main stem are 17-18, the sword leaves are erect, and the leaf sheaths are purple. Resistant to fertilizer and lodging, good color in the later stage. The average ear length is 25 cm, the total grain per ear is 150, and the seed setting rate is about 85%. A thousand grains weigh about 28 grams. Cultivated as medium rice in Hunan
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Ii you 7 (Rice)
The main results are as follows: (1) Variety source: this variety is a new medium indica late maturing hybrid rice variety Luhui 17, a restorer line used in rice sorghum, Sichuan Academy of Agricultural Sciences, and II-32A, a male sterile line with high outcrossing rate. For the current key promotion portfolio of Sichuan Province, it was included in the promotion plan of Sichuan Province and national key scientific and technological achievements in 1999. (2) characteristics: the total growth of the combination was 151.5 days, which was 2.4 days longer than that of Shanyou 63. The plant height was 114.87 cm, the ear length was 25.74cm, and the grain per ear was 150cm.
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