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Introduction to the Hybrid Japonica Rice Variety Changyou No. 1
"Changyou No. 1" is a new "three-line" high-quality hybrid japonica rice variety bred in 1998 by the Changshu Agricultural Science Institute of Jiangsu Province. It passed Jiangsu provincial approval in January 2002 and national approval in November 2003 (National Approved Rice 2003068). At the same time, the male-sterile line of this combination, Wuyunjing No. 7 A, has applied for new variety protection, with the number CN20010203.6. Because this variety has the advantages of good quality, high yield, strong resistance, wide adaptability and high seed production yield, it has already been promoted and planted in the late
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Super-high-yield new hybrid japonica rice variety Qiuyou Jinfeng successfully bred
The super-high-yield new hybrid japonica rice variety "Qiuyou Jinfeng", independently bred by Shanghai scientists, after 3 years of production demonstration planting, reached a per-mu yield of 801.9 kg, and has recently passed expert acceptance inspection. On December 31, 2006, a reporter learned at the Shanghai Minhang District Agricultural Science Research Institute that the cultivation of the excellent variety "Qiuyou Jinfeng" uses the genetic differences between the two parents of indica rice and japonica rice, with an excellent late japonica sterile line as the female parent, and selects excellent indica rice and excellent japonica rice restorer lines as the male parent, through "indica-japonica bridging" technology, applying
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Breeding and Application of Tianfengyou 269, a High-Yield, High-Quality, Multi-Resistant Hybrid Indica Rice
1 Breeding Process Tianfengyou 269 (formerly named Yanyou 269) is a new high-yield, high-quality, multi-resistant three-line hybrid indica rice combination bred in 2002 by the Institute of Agricultural Sciences of the Coastal Region of Jiangsu, by crossing Tianfeng A, developed by the Guangdong Academy of Agricultural Sciences, with the restorer line Yanhui 269, which was self-bred by our institute. The self-bred restorer line Yanhui 269 was produced in the summer of 1995 by making a cross with Yanhui 559 as the female parent and Yanhui 469 (an intermediate material of our institute) as the male parent, obtaining 26 hybrid seeds, which were brought to Sanya, Hainan in the winter of the same year for planting
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New hybrid indica rice combination K You 818: high yield, good quality and disease resistance
K You 818 is a new hybrid indica rice combination with high yield, good quality and disease resistance, bred by the Institute of Agricultural Sciences of the Lixiahe Region of Jiangsu, and produced and distributed exclusively by Nanjing Shenzhou Seed Industry Co., Ltd. This variety has applied for national new variety protection and patent, with the announcement number: CNA000548E. It passed the Jiangsu provincial approval in 2001, and in the same year entered the national southern rice region high-yield group regional trial, with a yield of 660 kg per mu, ranking first among the tested combinations. In 2002, it exceptionally entered the national southern rice region production trial, with a yield increase of 10.65% per mu compared with the control, ranking first, making it
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Characteristics and High-Yield Cultivation Techniques of the New Hybrid Indica Rice Combination 29 You 559
29 You 559 is a new three-line hybrid indica rice combination bred by Jiangsu Xuzhou Higher Vocational School of Bioengineering and the Jiangsu Coastal Area Institute of Agricultural Sciences by crossing the self-bred male sterile line 29A with the self-bred restorer line Yanhui 559. 29A is the first indica three-line male sterile line bred in Jiangsu, and the new combination 29 You 559, developed by crossing 29A with Yanhui 559, shows obvious heterosis and passed the Jiangsu Provincial Crop Variety Approval in January 2003. Heterosis performance of 29 You 559 In 1999, it participated in the Jiangsu Provincial Hybrid
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Key Cultivation Techniques for the Two-Line Hybrid Japonica Rice Wandao 48
To meet the demand of the high-quality japonica rice market, the Rice Research Institute of the Anhui Academy of Agricultural Sciences developed the high-quality two-line japonica hybrid combination Wandao 48 (also known as 70 You Shuang Jiu) by crossing 7001S with 2277. Through experimental demonstration and grain quality evaluation, it has shown high quality, high yield, and multi-resistance. 1 Characteristics and Traits: It belongs to the early-maturing late japonica type, with a whole growth period of 128 days (double-cropping late rice) to 140 days (single-cropping late rice). Plant height is 93 cm. Plant type is moderately compact. Leaf color is light green. Main stem has 15 to 17 leaves. Panicle is umbrella-shaped. Panicle length is 19.8 cm, with more than 110 total grains per panicle and a seed-setting rate of 85%. Grains are oval. Awnless. Hull is thin and light yellow. 1000-grain weight is 24 to 26 g. Strong photoperiod sensitivity. Requires above-medium fertility. Strong tillering ability and high productive tiller rate. Fast grain filling and good color retention at maturity. Relatively easy to thresh. Tolerant to low temperatures. According to artificial inoculation identification by the Plant Protection Institute of the Anhui Academy of Agricultural Sciences, it is moderately resistant to rice blast (grade 3) and bacterial leaf blight (grade 3). Brown rice rate 83.1%, milled rice rate 75.3%. Head rice rate 74.0%, grain length 5.3 mm, length-to-width ratio 1.9; chalky grain rate 7%, chalkiness degree 0.9%, transparency grade 1. Gelatinization temperature is low (grade 6.9), gel consistency is soft (80 mm), amylose content 18%, protein 9.3%. Good eating quality. Good grain elongation.
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Introduction to the Elite Hybrid Medium Indica Rice Variety Xieyou 136
Xieyou 136 is a new medium indica hybrid rice combination bred by the Institute of Agricultural Sciences of the Lixiahe Region in Jiangsu. This combination is high-yielding and stable, with an average yield of about 650 kg per mu, more than 8% higher than that of Shanyou 63. Its full growth period is 145 days, with a well-coordinated panicle-grain structure and relatively high grain weight; generally 170,000-190,000 effective panicles per mu, 122.4-167.3 total grains per panicle, a seed-setting rate of about 90%, and a 1000-grain weight of more than 30 g. It has a compact plant type, strong tillering ability, good luxuriance, and strong lodging resistance; at maturity the stems remain green and the grains turn yellow, giving an excellent appearance at maturity; it is resistant to rice blast,
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Introduction to three new hybrid late indica rice combinations including II You 7954
II You 7954 II You 7954 is a new hybrid late indica rice combination bred by the Crop Research Institute of the Zhejiang Academy of Agricultural Sciences. In the 2001 municipal production trial, the average yield per mu was 428.2 kg, the average whole growth period was 133 days, the average effective panicles per mu were 165,300, the seed-setting rate was 82.86%, and the 1000-grain weight was 26.8 g. Its resistance identification results: moderately resistant to rice blast, moderately susceptible to bacterial leaf blight, susceptible to brown planthopper; rice quality test results: 4 indicators including brown rice rate, milled rice rate, alkali spreading value and protein content reached the first-grade standard of the ministry-issued edible high-quality rice standard.
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Introduction of Three New Hybrid Late Indica Rice Combinations Including K You 117
K You 117 K You 117 is a new hybrid late indica rice combination bred by the Southern Zhejiang Rice Breeding Center of the Wenzhou Academy of Agricultural Sciences. In the 2000 production trial, the average yield per mu was 410.6 kg. Results of the two-year regional trial: its average whole growth period was 127.2 days, the average number of effective panicles per mu was 180,500, the seed-setting rate was 87.97%, and the 1000-grain weight was 27.6 g; resistance identification results: resistant to brown planthopper, moderately resistant to rice blast; rice quality test results: 5 indicators including brown rice rate, milled rice rate, grain length, alkali spreading value and protein content
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Three new hybrid late indica rice combinations including Shanyou 8548
Shanyou 8548 Shanyou 8548 is a new hybrid late indica rice combination bred through collaboration between the College of Agriculture and Biotechnology of Zhejiang University and the Zhejiang Provincial Seed Company. In the 2001 provincial production trial, its average yield per mu was 443.6 kg, a 2.17% increase over the control Shanyou 10. Results of the two-year regional trial: its average total growth period was 126.7 days, average effective panicles per mu was 197,000, seed-setting rate was 88.1%, and 1000-grain weight was 28.6 g; resistance identification results: moderately resistant to rice blast, moderately susceptible to bacterial blight, susceptible to white-backed planthopper and brown planthopper; rice quality test results
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