seed-corn谷种;玉蜀黍的种子
seed of corn玉米种子
Seed-corn companies玉米种子公司
seed corn potatoes etc作种子用的谷物
seed production of corn玉米制种
seed corn maggot种蝇
Pine seed corn松仁玉米
seed corn grader玉米种子定级员
seed corn production谷种生产
N（名词） the good quality ears or kernels of corn that are used as seed 谷种