1.(2)MS + 2,4-D 4mg/L medium was very perfect for the callus abduction,on which the callus abduction rates of stem,leaf and leafstalk was separately 100%,40%,20%.
( 2 )MS + 2 ,4 D 4mg/L为较理想的愈伤组织诱导培养基 ,在此培养基上 ,茎、叶片、叶柄的诱导率分别是 :1 0 0 %、40 %、2 0 %.
2.the upper angle between an axis and an offshoot such as a branch or leafstalk.
象树枝或叶柄的分支与轴之间的上角。
3.The upper angle between a lateral organ, such as a leafstalk, and the stem that bears it.
腋在侧部器官如叶柄和支撑着它的叶梗之间的上角
4.A flattened leafstalk that functions as a leaf, as in an acacia.
叶状柄起叶子作用的扁平叶柄，如洋槐的叶柄
