种芽的大小对生姜须根的影响较大，中、小芽植株的根系总量比大芽高２０％左右，而须根高５０％以上，肉质根则基本相近；由于须根是主要的吸收根，因此根的吸收表面也以中、小芽为大；在盛长初期，中、小芽植株根系的伤流量均比大芽植株高近２０％，伤流成分含量中、小芽也显著高于大芽，特别是ｋ＋含量高５０％左右。最后测产，中、小芽处理均比大芽处理增产４９．９％。 The size of the buds had a greater effect on the fibrous roots of the ginger. The total root volume of medium and small shoots was about 20% higher than that of the large buds, while the fibrous roots were almost 50% higher. The fibrous root was the main absorption root, Therefore, the root absorption surface is also medium and small buds large; early in the long, medium and small buds root injury trauma were 20% higher than the bud plant, wound content, buds were significantly higher than Big bud, especially k + content of about 50% high. The final test yield, medium and small buds were treated 49.7% more yield than large buds.