Screening and Identification Method of Pollen Viability of Different Types of Succulents
The pollen viability of 13 species of succulent plants from 6 genera and 3 families was com-pared with that of Alexander staining and I2-KI staining,and suitable methods for determining pollen viability of different types of succulent plants were selected.The results showed that there were sig-nificant differences between the two staining methods on the pollen of succulents of different families.The mean value of pollen activity detected by I2-KI staining was significantly lower than that by Alex-ander staining.The pollen viability of germplasm resources was generally higher than that of hybrid combinations.The pollen viability of 26 target germplasm resources and hybrid combinations was divided into 5 levels by cluster analysis and difference significance analysis.The shape of pollen showed round,square,oval and irregular shape,and there were one to many kinds of pollen treme morphology in the same variety.
succulentspollen viabilitycomparison of staining methodsactivity classification