Study of pollen germination characteristic of Paeonia lutea

Key words: 
• botany /
• Paeonia lutea /
• pollen /
• germination

Abstract: The findings of the conditions for the pollen germination of Paeonia lutea showed that pH values needed by four different Paeonia lutea populations took on two level differentiation .There was no much difference among four samples in the concentrations of boric acids , which were about 0.07 ～ 0.08 g L-1 .There was significant difference in the concentrations of cane sugars in different samples .There was a positive correlation between the values of sugar concentrations and the altitudinal distribution .The concentration of sugar needed by the pollen germination of population in high altitudinal zone was 140 gL-1 .The study also showed that in the dry and lowtemperature (about 2 ℃)conditions , the pollen of Paeonia lutea could survive for about 140 d , which was longer than its variation .However , its pollen germinability was lower than its variation .[ Ch , 4 fig .2 tab .16 ref .]