Characteristics and cultivation points of a New glutinous Rice Variety Eyou 512 with High yield

Eyou 512 is an indica high-yielding glutinous rice bred in 1997 by using autotriploid SAR-3 with apomixis as female parent and mixed pollen as male parent. The F1 hybrids were separated, and some of the F2 lines were stable and consistent, and the superior lines were bred in F3 generation. It was examined and approved by Sichuan crop Variety approval Committee in 2002, and now it has been widely used in Sichuan Province, and the yield per mu has reached more than 500kg level.

1 main characteristics

The average yield of 469.8kg per mu was 4.50% higher than that of the control (Jingnuo 6) and reached a significant level. In 2001, production experiments were carried out in different ecological regions of Sichuan Province. The average yield per mu was 510.20kg, which was 7.80% higher than that of the control, and the annual highest yield per mu reached 639.5kg.

1.2Agronomic characters this variety has compact plant leaf type, erect flag leaf width, plant height about 110.0cm, ear length 24.7cm, spike grain number 178.5, seed setting rate 77.2%, grain yellow, 1000-grain weight 24.4g, whole growth period 147.8 days, neat field growth, hard stalk and lodging resistance, and good color conversion in the later stage.

1.3The rice quality test was determined by the Rice and Product quality Supervision, Inspection and Test Center of the Ministry of Agriculture: e you 512 brown rice rate 80.2%, milled rice rate 70.0%, head rice rate 60.5%, grain length 5.5mm, length-width ratio 2.3,3.2alkali elimination value, gel consistency 100mm, grain protein content 11.1%. It has reached Grade 2 of high-quality indica glutinous rice issued by the Ministry, which is a good raw material for making glutinous rice dumplings and making wine.

1.4 the resistance was identified by the Institute of Plant Protection of Sichuan Academy of Agricultural Sciences, E you 512 was resistant to rice blast, the average grade of panicle blast was 2.3, the highest grade was 6, and the average grade of susceptible bacterial blight was 2.7 and the highest grade 4 in adult stage.

2 cultivation and management

E you 512 is a middle and late mature waxy rice variety with compact plant type and strong lodging resistance. Reasonable cultivation techniques should be adopted in production to achieve the purpose of high yield.

2.1 early sowing at the right time and early sowing before and after the Qingming Festival or according to local planting habits. 1.2~1.5kg per mu, sparse sowing and uniform sowing should be paid attention to. Before sowing, the seeds were sunned for 4 hours, then soaked in water for 12 hours, then soaked in disinfection solution for 12 hours, and then germinated until white after washing. After sowing, the field management should be strengthened to cultivate more tillers and strong seedlings.

2.2 reasonable close planting, timely transplanting E you 512 plants with better leaf shape, plant height of about 110.0cm, weak tillering ability at seedling stage, and suitable close planting. The planting specification is 20cm × 24cm, no less than 12000 nests per mu, 3 plants per litter, and 10 ~ 120000 basic seedlings per mu to ensure that the effective panicle is more than 180000, in order to obtain high yield.

2.3 Scientific fertilization and water pipe fertilization should adopt the principle of "promoting, controlling and replenishing later" and increasing the application of phosphorus and potassium fertilizer, heavy application of base fertilizer, early topdressing of tiller fertilizer, and combined application of N, P, K and organic fertilizer. Farm manure, phosphate fertilizer, 70% potash fertilizer and 40% nitrogen fertilizer were used as base fertilizer, 30% nitrogen fertilizer and potassium fertilizer were used as topdressing, and the suitable proportion of N, P and K was 1 ∶ 0.5 ∶ 1. In drainage and irrigation, transplanting rice seedlings with thin water, turning green with an inch of water, tillering in shallow water, draining and drying the field in time after enough seedlings in the middle stage, controlling ineffective tillering, enhancing lodging resistance, and cutting off water 5 days before harvest, so as to achieve the goal of cultivating roots and protecting leaves, increasing 1000-grain weight and seed setting rate.

2.4 Integrated control of diseases and insect pests is based on the combination of prevention and control. Pay attention to the control of rice blast, bacterial blight and borer. The control of rice blast is focused on tillering stage and break stage. The stem borer can be controlled at the peak of tillering and the stage of break. Pay attention to the prevention and control of sheath blight in the middle and later stages of growth.

(3) utilization value

Glutinous rice is the main raw material of glutinous rice dumplings, dumplings and other food and wine-making, while dumplings and dumplings are the traditional food of the people. For a long time, due to the lack of high quality and high yield glutinous rice varieties, glutinous rice production has been at a low yield level. Popularizing new glutinous rice varieties with high quality and high yield is not only the need of improving the production level of glutinous rice, but also the need of the development of food industry and wine industry such as Tang Yuan, but also the need of optimizing rice production structure and improving agricultural production efficiency.

At present, there are few glutinous rice varieties that integrate high yield and waxy at the same time. E you 512 is suitable for growing middle season rice in the indica rice area of Sichuan Province, which not only has strong waxy quality, but also has a yield level of more than 500kg/ mu, which well coordinates the contradiction between high yield and high quality. It is a glutinous rice with high yield and high quality with great prospect of popularization and application.