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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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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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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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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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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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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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Hybrid late japonica rice restorer lines successfully bred in the Yangtze River Basin
Through the efforts of experts from the Shanghai Academy of Agricultural Sciences, the "Yangtze River Basin hybrid late japonica rice restorer lines - Shenhui 254 and Shenhui No. 1" were successfully bred and utilized. This project was awarded first prize for scientific and technological progress by the Shanghai Municipal Government this year. The key to applying hybrid late japonica rice in production in the Yangtze River Basin is to breed excellent late japonica-type restorer lines. This project used intermediate materials between indica and japonica subspecies as bridge parents, introduced indica restorer genes into late japonica rice varieties, adopted convergent crossing and systematic selection, and gathered the excellent base
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Introduction and Characteristics of the Jiudao 48 Rice Variety
I. Breeding Institution: Jilin City Academy of Agricultural Sciences II. Variety Origin: In 1993, a sexual cross was made using Guteng line 127/Qiuguang F1 as the female parent and C91118 as the male parent, and the progeny were developed through the pedigree method. Original code name Jiudao 401. III. Characteristics: 1. Plant traits: plant height 109 cm, compact plant type, erect leaves, strong tillering ability, about 23 effective panicles per hill; 2. Panicle traits: panicle length 18 cm, loose panicle shape, main and tiller panicles uniform
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What are the key cultivation techniques for Super Upland Rice 1
1. Intensive and meticulous farming: The quality of plowing and land preparation directly affects the uniform emergence and complete stand of upland rice, as well as the strength of the soil's water-holding capacity. Therefore, a good environment must be created for the growth and development of the underground parts of upland rice. 1.1. Deep plowing: The suitable soil tillage depth for upland rice planting is 18-20 cm, but the plowing depth must also be determined according to soil fertility and thickness. 1.2. Land preparation: The requirements for meticulous land preparation are level soil, with four-side ditches and a middle ditch, capable of both drainage and irrigation. Generally, the ditch depth is 1
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Super dryland rice White Pearl No. 1 is suitable for planting in the north
White Pearl No. 1 was introduced from Israel by the Mingfeng Agricultural Science Institute of Harbin City, Heilongjiang Province, and was developed through years of purification, hybridization and selection by the institute. After years of observation, summary and analysis over hundreds of days and nights at nearly a hundred trial sites in Northeast China, Northwest China and North China, each difficulty was overcome one by one, and a new high-yield dryland rice variety suitable for large-scale cultivation in the north was bred, and it is known as the super dryland rice of the north. When planted in Harbin City, Heilongjiang Province, this variety has a whole growth period of 110-125 days, is medium-short-stemmed, with a plant height of 90-95 cm, and does not lodge. It has large panicles and many grains, with an average
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