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Hybrid Indica Combination - Japonica Rice 52?
Indica rice 52 (Liuyou 121) was a hybrid mid-harvest mix composed of six thousand-ink A and light-body rice restorer HP121 in Anhui Academy of Agricultural Sciences. This group of cooperative medium rice cultivation, the whole growth period is 144 days, the plant height is about 102cm, the plant type is loose and moderate, the flag leaves are short and the lifting is strong, the tillering power is strong, the spike success rate is high, the effective ear is about 30000/hm, and the spikes are large The total number of grains per panicle was 160, the seed setting rate was more than 80%, and the grain weight was 26g. Grain oval, no awns. Resistant to fat. The color is good. The quality of rice is excellent. Tested by the Quality Supervision, Inspection and Testing Center of Rice and Products of the Ministry of Agriculture, the rice rate is 85%, the polished rice rate is 76.2%, the whole polished rice rate is 74.8%, the amylose content is 16.3%, the gelatinization temperature is low, and the gel consistency is soft and transparent. Good, Ye Yejia. In 1995, it was rated as high quality rice in Anhui Province. It was identified by artificial inoculation at the Plant Protection Institute of Anhui Academy of Agricultural Sciences, with intermediate resistance to bacterial blight (grade 3) and resistance to blast disease (grade 3). From 1995 to 1996, they took part in the regional test of Zhongmu, Anhui Province, with an average of 7.65-8.21t/hm, an increase of 7.14-1.162% compared with the control 83-D. In 1996, he participated in the production test of the hybrid midland in Anhui Province, with an average of 7.69 t/hm, an increase of 9.9% over the control 83-D. Datian produces 8.5t/hm in general, and high yield can reach 9 t/hm or more. This combination is suitable for planting mid season rice in Anhui, Jiangsu, Henan, and Hubei along the Huai River, Huaibei, and Jianghuai. Since 1994, more than 20,000 hm have been promoted. The main points of high-yielding cultivation techniques: 1 Early sowing and early planting at a proper time, cultivating a variety of plants. For mid-season sowing before the beginning of May, planting hoe in mid-June, the age of 30-35 days, the sowing rate of 225kg/hm. 2 reasonable dense planting. The row spacing is 16.723.2, 16.7cm, and the basic seedlings are 90-1050000/hm or more, so as to reach the high yield target of effective ear of 2.85 million/hm. 3 Applying basal fertilizer requires effective NPK 500-540kg/hm, and the ratio of nitrogen, phosphorus and potassium is 2:1:1. 4 Strengthen post-management. In the later period, it is necessary to keep the shallow water grouting, alternating wet and dry until it matures. 5 Pay attention to the prevention and control of rice smut disease, weeding, weed control and pest control with reference to conventional methods.