National Review of Rice Variety-Huhan 15
It was selected by Shanghai Agricultural Biogene Center () and recently approved by the National Variety approval Committee. It belongs to indica conventional upland rice. The average growth period of one-cropping medium rice in the lower reaches of the Yangtze River is 121.1 days, which is 10.6 days later than that of the control Zhonghan 3. The growth is neat, the seedling stage is vigorous, the tillering ability is strong, the plant type is compact, the leaf is straight, the green stalk is yellow, the number of effective panicles per mu is 200000 ears, the plant height is 103.0 cm, the ear length is 20.7cm, the total grains per panicle is 144.3, the seed setting rate is 80.6%, and the 1000-grain weight is 21.3g. Resistance: drought resistance grade 1, rice blast grade 3. Main indicators of rice quality: head rice rate 62.2%, aspect ratio 3.0, chalky grain rate 15%, chalkiness 2.2%, gel consistency 30mm, amylose content 25.0%.
Yield performance: participated in the regional trial of upland rice varieties in the lower reaches of the Yangtze River from 2004 to 2005, the average yield per mu was 357.33 kg, 36.71% higher than that of the control Zhonghan 3 (extremely significant). In the production test in 2005, the average yield per mu was 369.84 kg, which was 26.04% higher than that of the control Zhonghan 3. It is suitable for planting upland rice in some hilly areas with mild drought in Hunan, Zhejiang, Anhui, Fujian and Guangxi.
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Several operating methods of Rice dry farming in Foreign countries
This new method has been invented by Tess Farm in New Orleans, USA. Specific operation method: on the wet no-tillage land, a small drill seeder (machine) is used to drill a hole in the soil with a diameter of about 3cm and a depth of 13-15cm. When drilling, two rice seeds are sown immediately. After sowing, the hole is covered with soil fertilizer, and the hole is filled with water, and the soil around the hole is only wet as straight. In general, no water can be given within 40 days after planting, so that the roots of rice mu grow deep and have strong roots, which can effectively
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Guofeng No. 2 (Rice)
Guofeng No. 2 was selected by Guofeng breeding Center. The female parent was Zhong9A, a male sterile line with high quality and high outcrossing rate, and the male parent was Zhonghui 218 with high quality and high combining ability of self-bred gene X21 (resistance to bacterial blight). From 2001 to 2002, he participated in the regional test of new medium indica rice varieties in Jiangxi Province, and sowed in the same period was 4 days earlier than that of "Shanyou 63". The tillering ability was medium to high, with large panicles and many grains, and high seed setting rate. The seed setting rate was 86.5%, and the 1000-grain weight was 29 grams. The average yield per mu was 591.2 kg.
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