论文部分内容阅读
[Objective]To select the optimal pollination period of Paris polyphylla var.yunnanensis.[Method] The pollen viability of P.polyphylla was evaluated by TTC test(2,3,5-triphenyl tetrazolium chloride) and its stigma receptivity was estimated by benzidine-H 2 O 2 method.[Result] Pollen viability was the highest at 68.2% when pollen sac cracked.It did not decrease significantly in the first 2 days.Since the fourth day,the pollen viability declined obviously,but still remained some activity.The stigma receptivity was in high activity within five days after pollen sac cracking and the pollination of P.polyphylla should be done in this period.[Conclusion]The optimal pollination period of P.polyphylla is selected in this experiment,which can provide basis for further development and utilization of P.polyphylla.
[Objective] To select the optimal pollination period of Paris polyphylla var. Yunnanensis. [Method] The pollen viability of P. polyphylla was evaluated by TTC test (2,3,5-triphenyl tetrazolium chloride) and its stigma receptivity was estimated by benzidine -H 2 O 2 method. [Result] Pollen viability was the highest at 68.2% when pollen sac cracked. It did not decrease significantly in the first 2 days. Since the fourth day, the pollen viability declined obviously, but still remained some activity The stigma receptivity was in high activity within five days after pollen sac cracking and the pollination of P. polyphylla should be done in this period. [Conclusion] The optimal pollination period of P. polyphylla is selected in this experiment, which can provide basis for further development and utilization of P. polyphylla.