鲜食糯玉米新品种吉科糯20的选育

A New Fresh Waxy Corn F1 Hybrid—‘Jikenuo 20’

吉科糯20是以自交系JN111为母本,以JN203为父本配制而成的鲜食糯玉米一代杂种。中早熟,春播生育期约87 d(天);株型半紧凑,生长势强,平均株高238 cm,穗位高109 cm;果穗长筒型,平均穗长22.1 cm,穗行数14~16行,籽粒白色、糯质型,排列整齐,百粒重41.9 g,直链淀粉占粗淀粉含量的2.84%,皮渣率5.97%(FW);中抗大斑病、丝黑穗病、茎腐病,每667 m^(2)鲜穗产量900 kg左右,适宜吉林省鲜食糯玉米中熟至晚熟区种植。

‘Jikenuo 20’is a new fresh waxy corn F1 hybrid developed by crossing inbred line‘JN111’as female parent and inbred line‘JN203’as male parent.It is of medium-early maturity.Its growth period is about 87 days in spring.Its plant type is semi-compact,with strong growth vigor.The average plant height is 238 cm,and ear position height is 109 cm.Its ear is long tube type,with 22.1 cm in length and 14-16 rows per ear.The grain is white and waxy.The weight of 100 grains is 41.9 g.The amylose accounted takes up 2.84%of the crude starch content,and the skin residue rate is 5.97%(FW).It is medium resistant to leaf bligh,head smut,and stem rot.Its fresh ear yield is about 13.5 t·hm-2.It is suitable to be cultivated in the middle to late maturing areas of fresh waxy corn in Jilin Province.