Longliangyou 1137 is a new combination of two-line medium hybrid rice bred by Hubei Longdao Seed Industry Technology Co.,Ltd.with Long 6S as the maternal parent and R1137 as the paternal parent.The variety has the characteristics of high yield,suitable growth period,strong growth potential,good ripening phase and lodging resistance when it is used for one-season medium rice.It had whole growth period of 135.8 d,plant height of 120.2 cm,total number of grains per panicle of 235.9,1 000-grain weight of 25.7 g and seed setting rate of 84.2％.In 2023,it was approved by National Crop Variety Certification Committee(Approval number:Guoshendao 20233114).The breeding process,characteristics,cultivation and seed production techniques were briefly described in the paper.
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