High-yielding and heavy-head hybrid rice Gangyou 3551
Gangyou 3551 is a female parent of the rice research laboratory of the Yibin Institute of Agriculture and Technology, and the interspecies heavy panicle type is formed by mating with the new interspecies heavy ear-type restorer line Yihui 3551 developed by the Institute. New Late Hybrid Rice Combination in Zhongyu. Approved by the Crop Variety Approval Committee of Sichuan Province in May 2001, it was listed by the National Agricultural Technology Extension Center as a national-level high-yield demonstration and promotion variety in 2001, and has been reported as a national new breeder's right protection. I. FEATURE FEATURES Gangyou 3551 is a late-maturing combination of Chinese wolfberry. It has a total growth period of 151.1 days and is 1.3 days longer than Shanyou 63. Plant height 111.6 centimeters, moderate loose plant type, long and straight flag leaves, slightly darker leaves, seedlings growing vigorously, strong tiller, good late color, ear length 24.4 centimeters, acres (1 acre = 1/15 hectares, the same below) Effective ear 169,500, single grain 157.8 grains, seed setting rate 83.1%, grain weight 26.5 g, rate of brown rice 82.1%, polished rice rate 73.7% , The rate of whole polished rice is 66.3%, the grain length is 5.6 mm, and the aspect ratio is 2.2. The processing quality is better than that of Shanyou 63, and the appearance and taste quality are comparable to those of Shanyou 63. Inoculation of rice blast disease in Sichuan Province was identified as mid-resistance to leafhoppers and midges and light blight. Second, the output performance in 1999 to participate in the Sichuan Provincial District trial Yuzha cooked group b test, the average yield of 583.6 kg per mu, compared with Shanyou 63 yield 8.70%, ranking first. In 2000, he participated in a group of trials in Sichuan Zhongyan late fever, with an average yield of 575.6 kg per mu, an increase of 8.46% over Shanyou 63, ranking first. In the two years of regional experimentation in Sichuan Province, the average yield per mu was 579.62 kg, which was 8.59% higher than that of Shanyou 63. It was the first breakthrough in Sichuan province that had been producing more than 8% more than Shanyou 63 for two consecutive years. In 2000, he participated in the group B regional trial in the late middle and late national rice farming period, with an average yield of 577.32 kilograms, an increase of 5.0% over Shanyou 63, ranking first. In 2001, it participated in the late-maturity and late-maturing high-yield group in the upper reaches of the Yangtze River in the southern rice region of China. The average yield per mu was 608.09 kg, 4.03% higher than that of the control Shanyou 63, ranking No. 4; The average yield per mu is 637.65 kg, which is 4.8% higher than that of the control Shanyou 63, ranking fourth. Third, cultivation points 1. Timely early sowing, nurturing strong seedlings in the Pingqiu area in south Sichuan until the end of March sowing, the age of 30-40 days. 2. Moderate planting of 1 to 15,000 litters per acre is planted, and medium fertility fields are planted at a size of 30 centimeters (13.3 centimeters) or (46.7+20) centimeters (16.7 centimeters). 3. Rational fertilization, suitable for organic fertilization, medium fertility, base fertilizer 500 kg of organic fertilizer per acre, 5 kg of urea, 40 kg of phosphate fertilizer, 5 kg of potash; 3 kg of urea per mu after returning green to the tiller; 35% of booting fertilizer before heading Mu with 3 kg of urea per day, 5 kg of potassium fertilizer; 7 kg of urea 2 kg per ear 7 days before earing. 4. Timely prevention and control of pests and diseases attention to control of aphids, rice thrips, rice borers, rice blast and so on. 5. Adaptation range Gangyou 3551 adapts to planting in Pingba and hilly regions of Sichuan Province, as well as in southern China.