Zhong 9 you 1176, a New three-line Indica Hybrid Rice combination with good quality
Zhong 9 you 1176 is a new three-line indica hybrid rice combination of Zhong 9A and high quality and multi-resistant restorer line R1176 used in China Rice Research Institute with high quality, high yield, strong disease resistance and excellent comprehensive agronomic characters.
1. Yield: the combination participated in the "8812" joint experiment in Zhejiang Province in 2002, the average yield per mu was 481.49 kg, which was similar to that of Shanyou 63, and the yield per mu was 643.5 kg, 6.90% higher than that of Shanyou 63, which reached a significant level. Participated in the regional test of Zhejiang and Jiangxi provinces at the same time in 2003.
two。 Rice quality: analyzed by the rice and product quality supervision, inspection and testing center of the Ministry of Agriculture: length / width 3.42, chalkiness 1.3%, chalky rice rate 14%, milled rice rate 58.7%, alkali elimination value 5.0, gel consistency 40mm, amylose content 23.8%, protein content 10.7%, the main rice quality traits reached the second grade or above standard of high quality rice.
3. Resistance: identified by the "8812" cooperation group in Zhejiang Province, the resistance to rice blast was grade 3 and that to bacterial blight was grade 3, showing resistance to rice blast and bacterial blight.
4. Growth period: as a single cropping rice (Hangzhou), the whole growth period is about 132 days, about 4 days later than Shanyou 63.
5. Plant type characteristics: plant height 119.8 cm, ideal plant type, stout stem, short penultimate Internode, strong lodging resistance.
6. Ear-grain structure: 10.87 effective panicles per plant, average total grains per panicle 209.08, 1000-grain weight 22.42, seed setting rate 81.9%.
7. Main points of cultivation: (1) timely sparse sowing and cultivation of strong seedlings: the sowing time of single cropping rice is from late May to early June, and the sowing rate is 7.5~10.0kg. (2) reasonable sparse planting: the planting density is 20 (20cm or 25 (16.7cm), about 1.2 ~ 15000 holes per mu, 1 / 2 seedlings per hole. (3) Fertilizer and water management: medium fertility field, fertilizing 11.0~13.0kgN, 4.0~4.5kgP2O5, 7.5~10.0kgK2O per mu. Among them, N base fertilizer: tillering fertilizer: strong stem fertilizer (including panicle fertilizer) was 5:3:2, phosphorus was all used as base fertilizer, potassium tiller fertilizer and strong stem fertilizer accounted for 50% respectively. Aerobic irrigation was used for water management, and the water was cut off about 7 days before harvest.
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High quality hybrid fragrant rice Chuanxiangyou 2
1. The high quality aromatic hybrid rice derived from Chuanxiangyou 2, a new self-bred male sterile line Chuanxiang 29A and a new restorer line Chenghui 177. 2. Characteristics of yield and main characters the sowing period of Chuanxiangyou 2 medium indica late maturing combination was 5 days longer than that of Sankyou 63. The yield per mu of 573.3kg was 7.8% higher than that of Shanyou 63 after many years of multi-point experiment. Chuanxiangyou 2 has a plant height of 117.2cm, an effective panicle per mu of 150000, and a flat panicle with 182 grains, with a seed setting rate of 82.2%. Dry grain weight 28.
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Characteristics and cultivation techniques of Changyou 3, a New three-line Japonica Hybrid Rice combination with good quality, High yield and Multi-resistance
Changyou 3 (also known as Changyou 00-8) is a new three-line japonica hybrid rice combination bred by Changshu Institute of Agricultural Sciences. It was approved by the National crop Variety approval Committee in 2005 (approval number: national examination and approval Rice 2005036). The male sterile line of this variety, Wuyunjing 7 A, obtained the national variety right certificate (certificate number: CNA20010203.6) in September 2005. Changyou 3 should be used as a late japonica rice push in Jiangsu, Zhejiang, Shanghai, Anhui and Hubei areas with light incidence of rice blast and bacterial blight.
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