Ii you 1313 (Rice)

(1) Variety source: II you 1313 was selected by Yibin Agricultural Science Research Institute from the combination of YRl313 restorer line and II-132A male sterile line.

(2) characteristics: the variety belongs to Zhongjiao late-maturing hybrid rice, and the whole growth period is 153 days, which is 3 days later than that of Shancheng 63. The plant height is 115 cm, the plant leaf shape is good, the seedling stage is prosperous, the tillering ability is strong, the leaf color is light, the glume tip is purple, and the color conversion is good in the later stage. The effective panicle per mu is 11-200000, the panicle length is 24 cm, the number of grains per spike is 140180, the 1000-grain weight is 28g, the ratooning ability is strong, the node position is slightly higher, and the harvest time of ratooning rice is similar to that of Shanyou 63. Identification of resistance to rice blast: leaf blast grade 3-6, neck blast grade 5-7. Rice quality testing. Brown rice rate is 81. 6%, milled rice rate 54%, chalkiness rate 24%, chalkiness 4.8%, gel consistency 50.4 mm, amylose 19.5%.

(3) suitable planting area: suitable for planting middle rice in Pingba and hilly areas of our province.