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Introduction to the Rice Variety Danhandao No. 2 (formerly named k150)
Variety source: Systematically selected and bred from Danjing No. 5. Characteristics: This variety is a conventional japonica-type upland rice variety. When grown as a single-season upland rice in the north, the average whole growth period is 153.7 days, 10 days longer than the control Han 72. Plant height is 78.51 cm, panicle length is 13.72 cm, the maximum number of seedlings per mu is 346,600 plants, the panicle-forming rate is 71.94%, the number of grains per panicle is 99.59, the seed-setting rate is 84.96%, and the 1000-grain weight is 21.9 g. Resistance: The average field performance across test sites showed drought resistance grade 2.4, leaf
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Large-scale leaf-rolling of the central leaves of rice may be related to excessive application of quinclorac
For some time recently, hundreds of readers across our province have called to report large-scale leaf-rolling of the central leaves of rice seedlings, which is even more common in direct-seeded rice production. Many readers brought in diseased plants. The root systems of the diseased plants are generally fairly normal, and there are no obvious disease spots or other symptoms on the leaves. After examining the submitted diseased plants, relevant experts from the Institute of Plant Protection of the Provincial Academy of Agricultural Sciences and other units preliminarily diagnosed that the leaf-rolling of the central leaves of rice is not caused by viruses or other pathogenic microorganisms, but may be phytotoxicity caused by herbicides such as 2,4-D and quinclorac, or may be caused by physiological
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What measures promote rice root development?
1. Sow early at the right time. When the temperature stabilizes at 5°C, begin sowing and raising seedlings; do not raise seedlings for the May crop. When the temperature stabilizes at 13°C, begin transplanting; do not transplant for the June crop. Transplant during the high-yield period to gain accumulated temperature, which is beneficial to root development. 2. Prepare the land carefully and create the conditions. Do a good job of plowing and rotary tilling; generally the plowing depth is 20 cm and the rotary tilling depth is 14 cm. Keep the plowing or rotary tilling depth uniform, so that the mud is not exposed even in water an inch deep, creating the conditions for root development. 3. Strengthen management and promote development. First, seedling-field management: control the temperature well, water reasonably, spray fertilizer on the leaves, and prevent
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Introduction to the Chunyou No. 2 Rice Variety and Key Cultivation Techniques
Chunyou No. 2 is a new high-yielding, early-maturing hybrid japonica rice combination developed by crossing the dense-panicle-type japonica rice male sterile line Chunjiang 10A with the large-panicle-type japonica rice restorer line CH89. 1. Panicle and grain structure and yield: plant height 103.3 cm, effective panicles per mu 152,000, panicle length 18.3 cm, total grains per panicle 175.4, seed-setting rate 90.2%, 1000-grain weight 26.9 g, theoretical yield 646.9 kg/mu (2002 data). 2. Main characteristics: as a continuous late rice, the whole growth period is about 130 days
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What are the characteristics and traits of the Chunjiangnuo rice variety?
Breeding institution: China National Rice Research Institute. Approval status: approved by the Zhejiang Provincial Crop Variety Approval Committee in 1993, and by the National Crop Variety Approval Committee in 1995. Variety registration number: GS01002-1994. Variety origin: Xiushui 11/T82-25. Characteristics and traits: a japonica-type late glutinous variety. At the seedling stage the plant is relatively short, with a compact plant type, sturdy seedlings, and relatively light leaf color; at maturity the color is good, with green stems and yellow ripening, and it threshes easily. Plant height is about 85 cm, effective
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Detailed Introduction to the Chunjiang 03 Geng Rice Variety
Chunjiang 03 Geng is a new japonica rice variety bred by the China National Rice Research Institute through hybridization with Xiushui 11 as the female parent and T82-25 as the male parent. Yield performance: in the 1994 and 1995 Hubei provincial regional trials, Chunjiang 03 Geng had an average yield of 435.64 kg per mu, ranking first, an increase of 9.74% over the control Eyi 105, a highly significant increase; in the 1994-1996 late rice variety comparison trials in Xiaogan City and district, the 5-point average yield was 468.51 kg per mu, ranking first, an increase of 16.66% over Eyi 105 (CK1),
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Key Points for Rice Cultivation Management During Spring Cold Waves
I. Characteristics of Cold Wave Disasters Due to the invasion of cold air, when the temperature drops sharply by more than 10°C within 24 hours, and the minimum temperature within that day is below 5°C, it is called a cold wave. In the middle and lower reaches of the Yangtze River, when strong cold air moves southward and causes the temperature to drop by more than 10°C within 48 hours, it is also called a cold wave. Cold waves generally occur in spring and autumn, with spring being the most common, and spring cold waves mostly occur from March to May. Cold waves mainly cause seed rot, seedling rot and dead seedlings during the rice seedling stage. II. Rice Cultivation Manage
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Chuanfeng 2 (formerly Gangyou 364) (rice)
Breeding units: Sichuan Provincial Seed Station, Sichuan Chuanfeng Seed Industry Breeding Center, Sichuan Jiangyou City Seed Company. Approval status: approved by the Sichuan Provincial Crop Variety Approval Committee in 1999, and by the National Crop Variety Approval Committee in 2000. Variety approval number: Guoshendao 20000001. Variety source: Gang 46A X Jianghui 364. Characteristics: a medium-indica late-maturing hybrid rice variety. Moderate plant type, plant height 117.7 cm, stiff and thick culms, tolerant of fertilizer, strong lodging resistance, relatively weak tillering ability,
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Introduction to the Characteristics and Traits of the Chugeng 17 Rice Variety
Chugeng 17 is a new medium-maturing conventional medium japonica rice variety bred by the Chuxiong Prefecture Institute of Agricultural Sciences in Yunnan through crossing Chujing 8 / 25-3-1. Characteristics and traits: the whole growth period of this variety is 170-175 days, plant height 95-100 cm, compact plant type, erect flag leaves, thick and strong stems, medium tillering ability, effective panicles per mu 280,000-300,000, relatively high panicle-forming rate, medium-to-large panicle type, grains per panicle 120-150, seed-setting rate 80%-85%, 1000-grain weight 26-28 g, yellow husk, colorless and awnless glume tip, white rice, moderate shattering
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Detailed Introduction to the Rice Variety Chaoyou No. 1
[Basic Information]Chaoyou No. 1 (also called Jindao 1229) was bred by the Tianjin Rice Research Institute using three-line hybridisation and conventional breeding, with the parent combination (FH-541A/Jinzhu No. 1) F1 x 84-11. [Characteristics]All indicators of this variety reach the national first-class standard for quality rice, among which crude protein (brown rice) is 10.32%, amylose (milled rice) 17.34%, brown rice rate 84%, milled rice rate 75.64%, head rice rate 74.34%, chalk
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