MySheen

Jinggang upland rice No. 1 (formerly known as 1587 rice)

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, Variety source: the characteristics of radiation mutagenesis of Brazilian upland rice (IAPAR9): this variety belongs to indica conventional upland rice. The average growth period of dry farming in the middle and lower reaches of the Yangtze River is 95.4 days, which is 14.1 days earlier than that of Brazilian upland rice. The plant height is 92.9 cm, the plant is compact, the plant leaf shape is good, the sword leaf is stiff, it is difficult to drop grain, and the color is general in the later stage. The number of effective panicles per mu is 178000 ears, ear length is 21.8cm, total grains per panicle is 128.4, seed setting rate is 77.8%, 1000-grain weight is 24.3%.

Source of variety: Brazilian upland rice (IAPAR9) induced by radiation

Characteristics: this variety belongs to indica conventional upland rice. the average growth period of dry farming in the middle and lower reaches of the Yangtze River is 95.4 days, which is 14.1 days earlier than that of Brazilian upland rice. The plant height is 92.9 cm, the plant is compact, the plant leaf shape is good, the sword leaf is stiff, it is difficult to drop grain, and the color is general in the later stage. The number of effective panicles per mu is 178000 ears, ear length is 21.8cm, total grains per panicle is 128.4, seed setting rate is 77.8%, and 1000-grain weight is 24.3g. Resistance: drought resistance grade 5, rice blast grade 9, bacterial blight grade 9. Main indicators of rice quality: head rice rate 58.0%, aspect ratio 3.3, chalkiness rate 20.0%, chalkiness 1.7%, gel consistency 76.5 mm, amylose content 15.2%.

Yield performance: in the regional trial of upland rice in the middle and lower reaches of the Yangtze River in 2002, the average yield per mu was 355.83 kg, which was 37.95% higher than that of Brazilian upland rice "IAPAR9" (extremely significant); in 2003, the average yield per mu was 305.39 kg, 30.55% higher than that of Brazilian upland rice "IAPAR9" (extremely significant); the average yield per mu in two-year regional trials was 326.62 kg, 33.84% higher than that of Brazilian upland rice "IAPAR9". In 2003, the average yield per mu was 235.16 kg, which was higher than that of Brazilian upland rice "IAPAR9".

The main points of cultivation techniques are as follows: 1. Soil preparation: apply sufficient basal fertilizer, cultivate carefully, do border leveling to ensure convenient irrigation and drainage; 2. Sowing: strip sowing or hole sowing, irrigating through water after sowing to ensure the integrity of seedlings; 3. Fertilization: when the seedlings reach two leaves, 10 kg of urea and 5 kg of potassium chloride are applied after rain to promote tillers and stalks; 4. Weeding: spraying weeds with herbicides before sowing and weeding 1-2 times after emergence 5. control of diseases and insect pests: special attention should be paid to the control of rice blast and bacterial blight.

Approval opinion: after examination, the variety conforms to the national rice variety approval standard and has been approved. The variety has medium drought resistance, early ripening stage, wide adaptability, high yield, high susceptibility to rice blast, high susceptibility to bacterial blight and excellent rice quality. It is suitable for dry cultivation of medium rice in the areas with light incidence of rice blast and bacterial blight in northern Fujian, Jiangxi, Zhejiang, Shanghai, Hubei, central and southern Jiangsu and Anhui provinces.

 
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