-
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
-
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),
-
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
-
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
-
Introduction to the Danhannuo No. 3 rice variety, formerly known as Hannuo No. 3
Characteristics: This variety is a japonica-type conventional dryland glutinous rice. In the Huang-Huai region under dry direct seeding after wheat harvest, the average whole growth period is 114 days, 4 days later maturing than the control Zhengzhou Zaojing. Plant height is 94.8 cm, the plant type is relatively compact, tillering ability is relatively strong, and yield stability is good. Panicle length is 19.4 cm, total grains per panicle is 101.2, seed setting rate is 82.2%, and 1000-grain weight is 24.5 g. Disease resistance: drought resistance grade 1, rice blast grade 3, narrow brown leaf spot grade 3. Main rice quality indicators: head rice rate 64.6%, length-to-width ratio 1.
-
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
-
Detailed Introduction to the Dianxi 4 Rice Variety
Dianxi 4 is a new high-yield, high-quality japonica rice line bred by the Japonica Rice Breeding Center of the Yunnan Academy of Agricultural Sciences, with the cross combination Koshihikari/Hexi 24//Hexi 34. Characteristics: plant height about 90 cm, moderate tillering ability, effective panicles per mu can reach about 280,000, excellent plant type, stiff culms, erect leaves; panicle length 20.3 cm, about 120 grains per panicle, golden husk, good mature color, awnless; 1000-grain weight 25.1 g, non-shattering; cold tolerant, fertilizer tolerant, lodging resistant; highly resistant to rice blast; whole growth period about 174 days. Grain quality
-
Detailed Introduction to the Ejingnuo No. 6 Rice Variety
Breeding unit: Jingzhou Prefecture Institute of Agricultural Sciences, Hubei Province. Approval status: Approved by the Crop Variety Approval Committees of Hubei Province, Henan Province, Sichuan Province, and Hunan Province; approved by the National Crop Variety Approval Committee in 1991. Variety registration number: GS01002-1990. Variety source: Guichao No. 2 treated by radiation. Characteristics: Plant height about 110 cm, plant type moderately loose, upper leaves narrow, long and erect, moderate tillering ability, uniform heading. Effective panicles per mu 250,000, filled grains per panicle 90, seed setting rate about 80%. Grain is long-shaped; glume and sterile lemma are golden yellow; the tip of the glume is colorless, occasionally with awn; 1000-grain weight 26 g, milling yield 78.7%, head rice rate 61%, amylose content 1.1%, protein content 8.2%. Yield per mu is slightly lower than that of Guichao No. 2, but the glutinous quality is excellent. Resistant to bacterial leaf blight and rice blast, tolerant to sheath blight. General yield 450 kg per mu.
-
Introduction to the Biological Characteristics of the Topmouth Culter (Culter alburnus) from the Yangtze River
The topmouth culter, commonly known in Guangdong as "Yangtze Heshun," in the middle reaches of the Yangtze as "qiaobai" or "white fish," and in the lower reaches of the Yangtze as "Taihu white fish." In recent years, many people in our province have passed off the bigeye culter, i.e. the "Pearl River Heshun," as "Yangtze Heshun" to sell to farmers, with the result that even after four years of intensive culture they could not reach the market size of 8 liang to 1 jin. Since last year, Hainan culter and qingshao culter have been passed off as "Yangtze Heshun"; although they grow somewhat faster than the bigeye culter, they are slower than the genuine topmouth culter, and it is very difficult to raise them to a market size of over 1 kg
-
Detailed Introduction to the Correct Mixing Method for Chicken Feed
When using feed, it is required that every portion of the feed consumed by the chickens contains balanced and identical nutrients; otherwise, the flock will suffer from malnutrition, deficiency diseases, or poisoning. Even if your diet formula is very scientific and the feeding conditions are very good, you still cannot achieve satisfactory feeding results. Therefore, the feed must be mixed evenly to meet the nutritional needs of the chickens. There are two methods of feed mixing: mechanical mixing and manual mixing. As long as they are used properly, both can achieve satisfactory results. Mechanical mixing: use a mixer. Commonly used mixers
条件筛选