桃树叶片气孔密度的研究

Study on Stomatic Density of Peach Leaf

观察了桃亚属6个种139份材料的叶片气孔密度。结果表明,不同种间气孔密度有较大的差异,以扁桃的气孔密度最大,山桃最小。栽培种各类型之间气孔密度差异较小。气孔密度呈正态分布,依概率分级方法将气孔密度分为5个等级。

The stomatic densities of the leaves of 139 peach cultivars （Prunus persica Batsch）and its 6 related species were deter- mined. The result showed that there was significant difference in stomatic density among different species, the stomatic density of almond was the largest and that of david peach was the smallest. The difference in stomatie density among cultivars was less. The stomatic density showed normal distribution. Stomatic density could be divided, in a unified way, into 5 grades.