Control methods of seed-borne diseases of "Sanmai"
The main seed-borne diseases of "Sanmai" are stripe disease, smut disease, net spot disease and so on. In order to control these diseases, in addition to selecting disease-resistant varieties, changing stubble rotation and adjusting sowing date, it is important to do a good job of seed treatment.
The following methods can be used for seed treatment: (1) using 10% soaking seed Ling 12.5 ml, adding 4 kg water, mixing 50 kg seeds, or using 2% Likexiu 100g, adding 4 kg water, mixing 100 kg seeds, can control stripe disease and smut. (2) 150 grams of 2% Likexiu, 4 kg of water and 100 kg of seeds had a good effect on the control of net spot. When dealing with seeds, pay attention to accurate dosage, uniform mixing, stuffy for 5-8 hours after mixing, and prepare prepared seeds for emergency replanting.
After the occurrence of the above seed-borne diseases, remedial measures should be taken in spring, appropriate topdressing of nitrogen and phosphorus fertilizer, urea 5kg / mu and diammonium phosphate 4kg / mu to enhance plant resistance and reduce loss.
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Jimai 20 (original code 955159)
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Breeding and Utilization of a New medium Indica Rice Variety Yangdao 6 with good quality, High yield and Disease Resistance
Yangdao 6 is a new medium indica variety bred by Yangdao 4 used by Lixiahe Agricultural Research Institute of Jiangsu Province as the female parent and crossed with "Yan 3021". The F1 seeds were mutagenized by 60CO-γ ray irradiation and then bred continuously. This variety integrates high quality, high yield, disease resistance and wide adaptability. it is an ideal provenance for the development of high quality rice and has been demonstrated and applied in Jiangsu, Anhui, Hubei, Shanghai and other provinces and cities. Yangdao 6 is also a high quality restorer line of two-line hybrid rice and three-line red lotus hybrid rice. "Liangyou Peijiu" and "Yueyou 9"
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