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Key rice diseases to focus on controlling in Guangdong currently
Bacterial leaf streak, rice blast, sheath blight and bacterial leaf blight are the four major diseases in late rice production in Guangdong, mainly damaging the leaves of plants in the early and middle stages of rice growth. The coastal typhoon-prone rice areas of our province are frequent-occurrence areas of bacterial leaf streak, while hilly and mountainous areas are mainly affected by rice blast and bacterial leaf streak. The occurrence periods, characteristics and control methods of bacterial leaf streak, rice blast and sheath blight are briefly described as follows: Bacterial leaf streak. Rice bacterial leaf streak has shown a spreading trend in Guangdong in recent years. The disease starts at the seedling stage and breaks out severely at the young panicle differentiation stage. Ty
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Detailed Introduction to the Dan Nuo No. 2 Rice Variety
Dan Nuo No. 2 rice is a new glutinous rice line developed by the Rice Experiment Station of the Dandong Academy of Agricultural Sciences, using Fan 4 as the female parent and Liaoyannuo No. 4 as the male parent through artificial sexual hybridization and years of systematic selection. It was approved and named by the Liaoning Provincial Crop Variety Approval Committee in 2001. Characteristics: seedlings have a well-developed root system and strong tillering ability; plant height is 100 cm; the main stem has 16 leaves; leaves are clean and upright. The plant is compact, with thick and sturdy stems and resistance to lodging, and matures with green stalks; panicle length is 15 cm-16 cm; panicles are erect; each panicle has 100-1
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Danjing 6 is a rice variety suitable for dryland cultivation.
Variety source: Bred by hybridization at the Dandong Academy of Agricultural Sciences. Characteristics: Growth period 130 days, plant height 90 cm, moderate tillering, well-developed root system, loose panicle type, panicle length 15.4 cm, average number of grains per panicle 104.4, sparse short awns, 1000-grain weight 25 g, mature with green stems, strong drought tolerance, resistant to rice blast and rice false smut, good eating quality. Suitable for planting in low-lying waterlogged land, rainfed rice fields, or dry fields with irrigation conditions. Cultivation points: Sow in the Dalian area from late April to early May, sowing rate 7-9 k
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Introduction to the Rice Variety K You 402
Breeding institution: Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences. Approval status: approved by the Sichuan Provincial Crop Variety Approval Committee in 1994 and by the National Crop Variety Approval Committee in 1998. Variety approval number: Guoshendao 980008. Variety source: KI7AX402. Characteristics: early indica variety. Plant height 95 cm, flag leaves erect, main stem 13-14 leaves. Panicle length 10 cm, effective panicles per mu 200,000-1M, grains per panicle 1
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Detailed introduction to the rice variety K You 195
(1) Variety source: This variety is a medium indica early-maturing combination developed by the Rice and Sorghum Research Institute of the Sichuan Academy of Agricultural Sciences using the self-bred male sterile line K17 and the restorer line HR195. (2) Characteristics: The whole growth period is about 140 days, comparable to Shanyou 64, and 2-3 days longer than Shanzhai 8. Plant height is 110 cm, panicle length is 22-23 cm, about 130 grains per panicle, seed setting rate is 80-85%, and 1000-grain weight is 29-30 g. Tillering ability is above average, the plant type is compact, the leaves are medium-long and erect, and the leaf
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Detailed introduction to the rice variety K You 17
Breeding institution: Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences. Approval status: approved by the Sichuan Provincial Crop Variety Approval Committee in l997, and by the National Crop Variety Approval Committee in 1999. Variety approval number: Guoshendao 990010. Variety source: K17AX Huhui 17. Characteristics: a three-line hybrid rice late indica combination. Plant height 110 cm, plants grow uniformly, plant type moderately loose. Leaves dark green, flag leaf moderate in size, tillering ability above average. Effective panicles per mu 180,000-2
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Detailed introduction to rice variety K404
(1) Variety origin: This is a new hybrid early rice combination developed by the Rice and Sorghum Research Institute of the Sichuan Academy of Agricultural Sciences by crossing K1A with the introduced early rice restorer line 404. (2) Characteristics: This combination is cold-tolerant at the seedling stage, with dark green leaves and a moderately compact plant type; the full growth period is 115 days; plant height is 91 cm, with strong tillering ability and a relatively high rate of productive tillers; the effective panicles per mu are 210,000-230,000, panicle length is 19-20 cm, about 100 grains per panicle, seed-setting rate above 75%, and 1000-grain weight 28 g; rice milling and appearance quality
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Introduction to the Characteristics and Traits of the I You 86 Rice Variety
[Basic Information] I You 86 was developed by this institute through test crossing and selection in 1995 between the self-bred new restorer line R8608 (a composite cross progeny of Gui 630/Fei-//Conggui 314/IR8608) and You IA, which was selected and bred by the Hunan Hybrid Rice Research Center. After 4 consecutive years of trials and test plantings from 1996 to 1999, this combination showed high and stable yield, relatively good grain quality, and multiple resistance, with comprehensive traits significantly superior to the control Shanyou 64, and high seed production yield. This institute used Zhenshan 97A,
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Introduction to the rice variety II You Xiang 13, originally named Nei Xiang You 13
Characteristics: This variety is an indica three-line hybrid rice. Grown as a single-season mid-season rice in the upper reaches of the Yangtze River, its average whole growth period is 156.8 days, 3.6 days later in maturity than the control Shanyou 63. The stems, leaf margins, and leaf-node glume tips are all purplish-red. The plant type is moderate, cold tolerance is medium, panicle-grain weight is relatively well balanced, and color turns well at maturity. The effective panicle number per mu is 160,000 panicles, plant height is 116.4 cm, panicle length is 25.6 cm, total grains per panicle is 161.6, seed-setting rate is 81.8%, and 1000-grain weight is 27.9 g. Resistance:
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Introduction to Rice Variety II You Duo 57
(1) Variety source: This is a medium indica late-maturing hybrid combination developed by the Rice and Sorghum Research Institute of the Sichuan Academy of Agricultural Sciences using II-32A as the female parent and Duohui 57 as the male parent. (2) Characteristics: The full growth period is 150 days, about 3 days longer than Shanyou 63. This combination has vigorous growth, a compact plant type, and good late-stage ripening color. The average number of grains per panicle is 150, the seed-setting rate is 87.2%, and the 1000-grain weight is 27.0 g. The eating quality is comparable to the control, and the processing and appearance quality are superior to the control. According to resistance identification, leaf blast is grade 5-7,
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