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What rice variety is Gangyou 131399?
(1) Variety source: This variety is a medium indica late-maturing hybrid rice combination developed by the Yibin Municipal Academy of Agricultural Sciences using Gang 46A as the female parent and the self-selected japonica-quality-source restorer line Yihui 1313 as the male parent. (2) Characteristics: The combination has a whole growth period of 148 days, 2 days earlier maturing than Canyou 63; plant height 110-115 cm; panicle length 24 cm; grains per panicle 160-180; seed setting rate above 85%; 1000-grain weight 28-30 g; brown rice rate 81.5%; milled rice rate 72.14%; head rice rate 55.8%. Rice blast identification: leaf blast
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Introduction to the Characteristics and Traits of the Rice Variety Gangyou 501
(1) Variety origin: This is a medium-maturing medium indica hybrid combination developed in 1991 by Mianyang College of Economics and Technology and the Rice Research Institute of Sichuan Agricultural University using Gang 46A x Mianhui 501. (2) Characteristics and traits: plant height 108 cm, plant type moderately compact, strong tillering ability, erect leaves, large panicles and many grains, 162.8 grains per panicle, seed-setting rate 80.3%, 1000-grain weight 26.3 g, brown rice rate 80%, head rice rate 53%, eating quality and palatability superior to Shanyou 63. Full growth period 14
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Introduction to the Characteristics of the Gangyou 906 Rice Variety
(1) Variety source: A medium-indica late-maturing hybrid rice developed by the Chengdu Second Agricultural Science Institute by crossing the self-bred restorer line Rongdao 906 (original code 48-6) with Gang 46A. (2) Characteristics: This combination has vigorous seedling growth, strong tillering ability, uniform growth, and a compact plant type. The whole growth period is about 145 days, 0.8 days longer than Shanyou 63. Plant height is 114 cm, panicle length is 23.4 cm, filled grains are 144, seed-setting rate is 86.2%, 1000-grain weight is 26.8 g, brown rice rate is 80.2%, milled rice rate is 70.6%, and the grain has very small chalkiness in the center and belly and is semi-transparent.
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How is the Gangyou 725 rice variety?
(1) Variety source: This variety is a medium indica late-maturing hybrid rice combination developed by Jinyang Agricultural Science Institute by crossing the male sterile line Gang 46A with the restorer line Mianhui 725. (2) Characteristics: The full growth period of this variety is 149 days, maturing at the same time as the control Shanyou 63. This combination has a moderate plant type, long and large leaves, neat panicle layer, good late-stage color, plant height 114.7 cm, panicle length 24.8 cm, effective panicles per mu 158,600, average grains per panicle 164.19, seed setting rate 85.6%, thousand-grain
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How is the Changnongjing No. 2 rice variety?
The new rice variety "Changnongjing No. 2" (formerly named 89-94) was developed by the Changshu City Institute of Agricultural Sciences in Jiangsu Province in 1989 through a double cross of 84G091/Xiushui 04//Wuyujing No. 2, followed by continuous non-greenhouse generation advancement of F1 and F2, and was bred in 1993 as a new medium-maturing late japonica variety. This line has the characteristics of excellent grain quality, high yield, early maturity and good adaptability. Characteristics: This variety has large panicles and large grains, a low sterility rate and a high 1000-grain weight. It is a large-panicle type variety, similar to hybrid japonica rice. The usual yield is more than 650 kg per mu, with
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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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Damage Caused by the Rice Stem Maggot to Hybrid Rice Seed Production and Its Control Methods
The rice stem maggot (Chlorops oryzae Matsumura) is mainly distributed in China in Heilongjiang, Zhejiang, Jiangxi, Hunan, Hubei, Guangdong, Guangxi, Yunnan, Guizhou, Sichuan, Chongqing and other provinces and areas. In recent years it has become one of the main insect pests in rice production in the hilly and mountainous areas of Chongqing, and the losses it causes have exceeded those of some important pests such as stem borers. In hybrid rice seed production, the occurrence of the rice stem maggot seriously affects the development process of rice, thus leading to poor flowering-date synchronization between the male and female parents and affecting seed production
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Rice fields treated with Penoxsulam herbicide show good safety
Penoxsulam is a sulfonylurea herbicide. The drug is absorbed through weed leaves, stems and roots, and is translocated via the xylem and phloem to the meristematic zones where it acts. When used in rice fields, Penoxsulam provides both foliar treatment and soil residual (pre-emergence) control effects. After Penoxsulam treatment, weeds quickly stop growing; 2-4 days after application the growing points fade, and sometimes the leaf veins turn red; 7-14 days after application the stem tips and leaf buds begin to wither and necrose; 2-4 weeks after application the weeds die. The speed of weed death is related to the accumulation of branched-chain amino acids in the plant. Young
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What key points should be noted for late-planted rice when transplanting into fields prepared with stored water?
The general requirement for transplanting late-planted rice into fields prepared with stored water is to seize the water, prepare the field, and transplant the seedlings, increasing the number of hills, seedlings, and panicles. For rice fields transplanted with stored water, as soon as rainfall occurs or another water source becomes available, measures such as blocking, diverting, and pumping water should be taken immediately to seize the water, prepare the field, and transplant the seedlings. For late-planted fields, planting density should be increased. For seedlings aged 60-70 days, transplant more than 13,000 hills per mu (8 x 6 cun), with two seedlings per hill (2 grains of rice); for seedlings aged over 70 days, transplant more than 15,000 hills per mu (8 x 5 cun), with about 10 seedlings per hill, so that the number of seedlings planted per mu reaches 150,000
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How is the rice variety Diyou 151?
(1) Variety source: It is a medium-maturing hybrid mid-season indica combination developed by Jiangyou City Seed Company using Digu A / Jianghui 151 (i.e. Gui 630 / IB9361-4-3-2). (2) Characteristics: The growth period is 142 days, plant height is 104 cm, tillering ability is relatively strong, seedling growth is vigorous, and color transition in the late stage is smooth. Ratooning ability is relatively strong. Leaf blast and neck blast are both grade 0-3, with strong resistance to rice blast. There are 176,000 panicles per mu, 144 grains per panicle on average, seed setting rate is 84.8%, and 1000-grain weight is 27.43 g. Brown
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