Study on phenological stage and phenotypic traits of Polygonatum cyrtnema from different provenances
In order to master the phenological and phenotypic characters of Polygonatum cyrtnem from different provenances,it was provided a reference for P.cyrtnem artificial cultivation and fine variety breeding.The phenological period of P.cyrtnem from four different provenances in Jiangxi,Anhui and Hu'nan was observed by field observation,the phenotypic traits of various sources were determined and analyzed by correlation,principal component analysis and cluster analysis.The results showed that the growth cycle of P.cyrtnem was about 8 to 9 months,and the phenological periods of different provenances were obviously different.The growth cycle was Anfu"kuanye">Anfu"zhaiye">Qingyang>Tongdao from long to short.The P.cyrtnema of Anfu"kuanye"had the characteristics of early budding and late seedling inversion,and the phenotypic traits such as plant height,stem diameter,leaf length,number of flowers,number of berries,fruit transverse diameter and lateral diameter were significantly greater than those of the other three provenances.Euclidean clustering results showed that P.cyrtnema from four provenances could be clustered into two categories,which the"kuanye"and"zhaiye"provenances from Anfu,Jiangxi Province were clustered into the first category,and the two provenances from Qingyang and Tongdao were clustered into the second category.P.cyrtnema of Anfu"kuanye"had better performance in stems,flowers,fruits and other traits,and had good breeding and promotion value.
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