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Pay attention to disease resistance varieties with good traits
Due to the occurrence of rice stripe disease in Jiangsu Province in recent years, readers from all over the country have a high call for resistance to rice stripe disease. According to the current situation, the author believes that in addition to high standards for the selection of existing varieties that have passed certification, it is necessary to pay more attention to some of the comprehensive traits when the agricultural technology departments and farmers in small areas introduce and test varieties that are resistant to rice stripe disease. There are signs of new products. Undoubtedly, the anti-rice stripe blight disease varieties will be widely used in production. However, some existing varieties that exhibit resistance and resistance to rice stripe disease in production have large defects in yield, rice quality, lodging resistance, and resistance to diseases such as rice blast, and some are still in production. The phasing out species were only used again in the case of rice stripe disease. There is a big gap between these varieties and the current requirements for high yield, high quality, and multi-resistance of rice varieties, and there is little potential for continued widespread use in production. The major rice breeding units in our province are stepping up their efforts to breed rice varieties resistant to stripe disease, and the relevant departments such as the Provincial Agriculture and Forestry Department have also attached great importance to the validation and promotion of rice stripe disease varieties, and have taken a series of effective measures. There is reason to believe that in a very short period of time, there will be a group of rice varieties that are both resistant to rice stripe disease and have outstanding performance in comprehensive traits such as yield, quality, disease resistance, and resistance. On the production of a large area to promote the application. The reporter recently learned from some rice breeding units in our province that there are now a large number of new rice lines with good resistance to rice stripe disease and good comprehensive characters. According to the researcher Wang Cailin, director of the Provincial Academy of Agricultural Sciences Food Crops Research Institute, the Institute has conducted high-quality, high-yield and disease-resistance hybrid crossbreeding research on the current situation that rice in our province is generally poorly resistant to rice stripe disease. Introducing the newly developed Japanese high-quality varieties with specific resistance to stripe blight, systematic breeding and crossbreeding, and has bred four new rice lines resistant to stripe blight, such as JD09. Another group of new strains that are resistant to stripe blight is being further identified. At present, these strains are participating in the identification of resistance to stripe blight disease organized by the Jiangsu Provincial Seed Station. According to Liu Chao, a rice room in the Xuzhou Institute of Agriculture and Science in Xuhui District, Jiangsu Province, after the successful breeding of Xudao No. 3, Xudao No. 4 was also bred. The variety has passed the certification of Shandong Province, and the field performance has high resistance to rice stripe disease. She successfully selected a Zhenjiang Agricultural Institute in the hilly area of ​​Jiangsu in the production of rice varieties such as Zhendao 88, Zhendao 99, and Zhendao 9424, which showed good resistance to stripe blight, and now they have developed the disease. Good resistance to the new series of rice 196 and Zhendao 413. The rice room of the Jiangsu Institute of Agricultural Sciences in Lixiahe District of Yangshuo 9538 has been successfully bred. This year, 6 new rice lines were recommended to participate in the identification of resistance to stripe blight in Jiangsu Province. Including the medium-mature Chinese japonica rice Yangyan 4022, Yangwei 4206; late ripening indica rice Yangliu 4065, Yang 粳 4277; early maturing late rice in Yangzhou 3118, Yang 粳 4038. According to He Zhentian of the Nuclear Technology Application Research Division of Lixiahe District, Jiangsu Province, after successfully growing No. 7 Yangfujing, they have now developed a rice quality standard above grade 2 that is resistant to rice stripe disease. Strong strains of three, and has recommended it to participate in the 2005 Jiangsu Province indica rice pre-test. One of them is named Yangfujing 4901. The quality of rice meets the national standard for high-quality rice. It will participate in the production test in 2005. Smoke is expected to pass the validation in 2006. According to Sun Mingfa, the rice room of the Institute of Agricultural Sciences in the Coastal Area of ​​Jiangsu Province, the new rice variety (lines) that was selected for the resistance to rice stripe blight was excluding salt rice No.8, and salt rice No.15 and salt rice. 2872, salt rice 172 and so on.