M Fengliangyou No.2 (Rice)
The female parent M8064S has a recessive marker of the lethal gene sensitive to bentazon. The whole growth period of the hybrid combination is 141d, the tillering ability is strong, the plant height is 130.2cm, the total grains per panicle is 263.6, the seed setting rate is 76.6%, and the 1000-grain weight is 25.6g. Main advantages: moderate ripening period and safe purity. When the male sterile lines with lethal markers of bentazon sensitive gene were used, when abnormal self-mixing occurred, the rice field herbicides could be applied at the seedling stage of hybrid seeds to selectively kill the self-crossing seedlings of male sterile lines and ensure the purity of hybrid rice production in the field. Special cultivation techniques: spraying bentazon at 2-4 leaf stage after sowing to remove impurities and keep purity can selectively kill the self-crossing seedlings of male sterile lines and ensure the field purity of hybrid rice.
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Key points of Rice cultivation of Qyou 18
The variety was selected by Chongqing Zhongyi Industry Co., Ltd and Rice Research Institute of Chongqing Academy of Agricultural Sciences. The combination belongs to medium indica late-maturing three-line hybrid rice. The whole growth period of medium rice was 152 days, which was 3.2 days shorter than that of control Ⅱ You838. The plant height is 110.4 cm. Under the density of 12000 nests per mu of seedlings, the number of effective ears per mu was 143000 ears, the number of grains per ear was 159.6, the seed setting rate was 82.0%, and the 1000-grain weight was 30.5g. Moderate plant height, compact plant type, erect leaves and green leaves
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K you 619 (Rice)
Basic situation K you 619 is a new early hybrid rice combination developed by South Zhejiang Rice breeding Center of Wenzhou Academy of Agricultural Sciences using K17A bred by Rice Sorghum Research Institute of Sichuan Academy of Agricultural Sciences and restorer line Wenhui 619 (hybrid progeny of Shizao 2-2shock 02428). In 1997, he participated in the early hybrid joint comparative test of Zhejiang hybrid rice breeding cooperation group, passed the Zhejiang regional test from 1998 to 2000, and participated in the Zhejiang production test in 2000. In the middle and south of Zhejiang and Fujian
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