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Observation on the Anther Opening and Closing Phenomena of Several Species of Paris Genus

WANG Ding-kang et al (Department of Biology,Kunming College,Kunming,Yunnan 650031)  
[Objective] The study aimed to supply basic data for the cultivation,breeding and research on plant pollination biology of Paris.[Method] The anther opening and closing phenomena of 6 species of Paris genus were observed and the temperature,humidity and illumination near the anther were determined.[Result] The anther openings of Paris iuquanensis H.Li,Paris daliensis H.Li et V.G.Soukoup,Paris polyphylla var.yunnanensis(Franch) Hand.-Mazz and Paris polyphylla Smith in Rees were relatively earlier and that of Paris dunniana Levl and Paris caobangensis Y.H.Ji,H.Li Z.K.Zhou were relatively later.The anther closings of P.dunniana and P.caobangensis were about 1 h earlier than that of P.iuquanensis,P.daliensis,P.polyphylla var.yunnanensis and P.polyphylla.The durations of anther opening and closing of P.dunniana,P.caobangensis,P.daliensis and P.polyphylla var.yunnanensis were longer and that of P.iuquanensis and P.polyphylla were shorter.The anther opening and closing course of paris genus showed positive correlation with the variation of illumination and temperature in a day and negative correlation with relative air humidity.[Conclusion] The anthers of paris genus opened gradually along with the ascending of air temperature and the descending of relative air humidity.The durations of paris anther opening and closing related to the size of anther.
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