development
has
occured
Sucrose increased to 5%
Shoots have developed over the surface of the explant, along with roots from the lower surface. The result is comparable with the control medium
Poor shoot development and no roots. Extensive callus generation
二、相关知识
NAA increased to 5.0 mg. l-1
Profuse development of roots over the explant
upper and lower surface, and few shoots. Some callus
Shoots developed on upper surface of explant. No roots or
callus.
一般根据组培植株的再生途径不同可分两大类
课后练习1
F2代紫色甜玉米的基因型组成可能 为Aasusu或AAsusu。如果运用常规育种 方法,将F2代中的紫色甜玉米与白色甜 玉米(aasusu)进行测交,可以选择出 基因型为AAsusu纯种紫色甜玉米。但这 种方法比较繁琐,耗时也较长,需要至 少三年的选种和育种时间。
知识拓展:
激素 激素种类和浓度对花药培养的影响 花药壁分化程度高,重新分裂需要较高
3.2 月季的花药培养
一、被子植物的花粉发育
1、被子植物
子房 胚珠
一、被子植物的花粉发育
1、被子植物