The environmental and climatic fluctuation of the late Quaternary in the South China Sea was explored by analysing the distribution of Sonneratia pollen.
The frequency distribution of characteristic value of the male cones and pollen is abnomal.
杉木雄球花及花粉特征值频率分布为偏态分布。
3
Pollen fertility was observed in two successive selfing generations on a two-line sterility line, Zao S, which proved that the pollen fertility in the population showed a normal distribution.