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Purple-marked rice male sterile lines developed in Guangxi
The rice male sterile lines carrying the purple-leaf marker trait, Xianhong A and Zhihong A, developed by the research team led by Guangxi Outstanding Expert Researcher Liang Shirong and Guangxi Academy of Agricultural Sciences Vice President Researcher Deng Guofu, passed the field technical appraisal organized by the office of the Guangxi Regional Crop Variety Approval Committee and conducted by a relevant expert group on August 3, 2007. After strict field investigation and indoor microscopic examination, and after hearing the research team's technical report and answers to questions, the expert group unanimously concluded that Xianhong A and Zhihong A have stable agronomic traits, stable male sterility, and good flowering
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Guodao 1 (formerly known as Zhongyou 6) (rice)
Characteristics: This variety is an indica three-line hybrid rice. Grown as a double-cropping late rice in the middle and lower reaches of the Yangtze River, its average whole growth period is 120.6 days, 2.6 days later maturing than the control Shanyou 46. Plant height is 107.8 cm, with thick culms, a moderate plant type, and vigorous growth; the flag leaves are relatively drooping. The number of effective panicles per mu is 178,000, panicle length is 25.6 cm, total grains per panicle is 142.0, seed-setting rate is 73.5%, and 1000-grain weight is 27.9 g. Resistance: rice blast grade 9, bacterial leaf blight grade 7, brown planthopper grade 9. Main grain quality indicators: head rice rate 55.9
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Characteristics and Traits of the Rice Variety Guofeng No. 1
Origin: A new high-quality three-line hybrid rice variety bred by the Guofeng High-Quality Hybrid Rice Breeding Center (a joint venture between Hefei Fengle Seed Industry and the China National Rice Research Institute). Approval status: Approved by the National Approval Committee in 2001. Characteristics and traits: When grown as double-season late rice, the growth period is similar to that of Jinyou Gui 99; when grown as single-season middle rice, the growth period is about 6 days shorter than that of Shanyou 63. This combination has taller plants, medium tillering ability, and longer flag leaves, with large panicles and many grains, generally 180 total grains per panicle, and a seed-setting rate of 8
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Introduction to the Guofeng No. 2 Rice Variety and Its Cultivation Key Points
Guofeng No. 2 was bred by the Guofeng Breeding Center. Its female parent is the high-quality, high-outcrossing-rate male-sterile line Zhong 9A, and its male parent is the self-bred gene X21 (bacterial blight-resistant), high-quality, high-combining-ability Zhonghui 218. From 2001 to 2002, it participated in the Jiangxi Province regional trial of new medium indica high-quality rice varieties, and when sown at the same time it matured 3--4 days earlier than "Shanyou 63". Its tillering ability is above average, with large panicles and many grains, and a high seed-setting rate, with 180--200 grains per panicle, a seed-setting rate of 86.5%, and a 1000-grain weight of 29 grams, with an average yield of 591.2 kg per mu, higher than
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Rice variety Huhan 15 passes national certification
Bred by the Shanghai Agrobiological Gene Center (), it recently passed certification by the National Crop Variety Approval Committee. It is an indica-type conventional upland rice. Grown as a single-season mid-season rice under upland conditions in the lower reaches of the Yangtze River, its average whole growth period is 121.1 days, 10.6 days later maturing than the control Zhonghan 3. It grows uniformly, with vigorous seedling growth, strong tillering ability, a compact plant type, erect leaves, and green culms at yellow ripeness. The effective panicle number is 200,000 panicles per mu, plant height is 103.0 cm, panicle length is 20.7 cm, total grains per panicle are 144.3, seed setting rate is 80.6%, and 1000-grain weight is
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Several foreign methods of dry rice cultivation can be used for reference.
Hole planting method for dry rice cultivation. This new method was invented by the Tice Farm in New Orleans, USA. Specific operation: on moist no-till land, use a small hole-punching seeder (machine) to punch a hole about 3cm in diameter and 13-15cm deep in the soil. While punching the hole, immediately sow 1-2 rice seeds, then cover the hole with soil and fertilizer, and fill the hole with water while keeping the soil around the hole only moist. Under normal circumstances, no water needs to be given within 40 days after sowing, so that the rice roots grow deep and have a strong root system, which can effectively
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Detailed Explanation of the Principles and Key Technologies of the Three-Super Cultivation of Rice in Cold Regions
The Three-Super cultivation technology for rice in cold regions addresses the growth-limiting factors currently present in high-yield rice cultivation in cold regions, such as a short growth period, excessive basic seedlings, excessive consumption of growth, poor light-receiving posture of the plant type, and decline of late-stage growth. Taking the "ridge-edge rice cultivation effect" as a model, it takes creating the largest super-high-yield population with the fewest basic seedlings as its basic approach, and takes "extending and expanding the nutritional time and space, releasing production potential, and strengthening the dual canopy (plant canopy and root canopy) performance" as its basic principle. It adopts standard high-quality super rice, uses single (double) seed positioning with ultra-early, ultra-low-rate sowing
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Demonstration and promotion of high-quality, high-yield rice for cold regions carried out in Heilongjiang
The National Agricultural Science and Technology Leap Program project "Integration and Demonstration of New High-Quality, High-Yield Rice Varieties for Cold Regions and Vegetative Matter Cultivation Technology" was officially launched on March 2 in Heilongjiang Province. The project is undertaken by the Heilongjiang Academy of Agricultural Sciences and Heilongjiang Bayi Agricultural University, and it is the first time that Heilongjiang Province's rice planting industry has been included in the National Leap Program. The project adopts three new high-quality, high-yield rice varieties of different maturity periods - Songjing No. 9, Longdao No. 5, and Longjing No. 14 - which were approved and promoted by the Heilongjiang Academy of Agricultural Sciences in the past two years and have passed national super rice acceptance, as well as vegetative matter pot seedling
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What are the common problems in dryland rice cultivation?
1. How to grow enough rice seedlings under drought and water shortage conditions. The whole year's success lies in spring. This vividly and profoundly illustrates the importance of seedling raising in the whole year's production. Under this year's special conditions, growing enough seedlings is the key measure to win the battle against drought and secure a bumper harvest. To grow enough rice seedlings under drought and water shortage conditions, the first thing is to determine the seedling raising method according to local conditions, and the second is to implement the seedling raising technical measures. When determining the seedling raising method, there are three approaches to choose from for reference: first, in places where water can be obtained locally, promote
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Detailed introduction to the rice variety Hang 931
Hang 931 is a new high-quality early indica variety bred by the Hangzhou Institute of Agricultural Sciences in Zhejiang Province in 1986 through crossing Hongtu 31 with fragrant rice. Characteristics and traits: in the 1994 Zhejiang Province early rice breeding joint variety comparison, the yield was 421.2 kg per mu, 2.7% higher than the control Zhe 852; in the 1994-1995 Hangzhou regional trial, the average yields per mu were 413 kg and 351 kg, 7.97% higher than the control Zhe 852 and equal to it, and 2.49% higher than the high-quality control Zhou 903; in the 1996 Hangzhou production trial, it was higher than the high-quality control Zhou 903
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