6-BA/(mg·L-1) | IBA/(mg·L-1) | ||||
0. 1 | 0.2 | 0.3 | 0.4 | 0.5 | |
1.0 | 31 | 63 | 58 | 49 | 41 |
2.0 | 40 | 95 | 76 | 69 | 50 |
3.0 | 37 | 75 | 64 | 54 | 41 |
4.0 | 25 | 35 | 31 | 30 | 25 |
5.0 | 8 | 21 | 12 | 8 | 4 |
A.6-BA浓度大于4.0mg·L-1时,芽分化率明显降低 |
B.6-BA与IBA的比例为10:1时芽分化率均高于其他比例 |
C.在培养基中同时添加适量的6-BA和IBA,可促进芽分化 |
D.2.0mg·L-16-BA和0.2mg·L-1IBA是实验处理中芽分化的最佳组合 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2