Study on the Growth of Different Geographical Provenances of Aspidopterys concava in Guangxi and Its Introduction in Nanning City
To investigate the distribution of germplasm resources and the native range of the shield-winged vine in Guangxi,as well as the growth performance of different seed sources after they were introduced to Nanning City,we visited and inves-tigated six geographic seed sources of the shield-winged vine in Guangxi(Jingxi,Longzhou,Chongzuo,Daxin,Dahua,and Pingguo),recorded and measured the accompanying plants and soil properties of the various sources,introduced the different sources to Nanning city for propagation and cultivation,and compared the growth and food production of the various source plants.The results showed that the prime companion plants of the shield-winged vine were 31 species in 23 families,with Moraceae as the prime family and shrubs and lianas as the majority;the soil carbon and nitrogen contents of the Pingguo seed source were the highest in its native place,amounting to 69.00 and 4.62 g·kg-1,respectively;the Dahua seed source had the highest content of total phosphorus,amounting to 3.18 g·kg-1;the Chongzuo seed source's soil fertility was relatively poor,and the more geographically distributed the north was,the greater the nutrient content of the soil was.The soil fertility of the Chongzuo seed source is poor.There were significant differences in the number of branches of plants from different seed sources but not in the total length of branches or edible yield,with the Longzhou seed source having the greatest growth,at 21.10,5.13 m,and 90.12 g,respectively,followed by the eastern and northern seed sources.The western seed sources had the worst growth.Correlation analysis revealed that the correlations between several indicators of soil nutrient content and plant growth indicators were significant or highly significant,and the native soil did not hurt the nature of the shield-winged vine itself.The analysis revealed that the Longzhou seed source had the best growth performance after planting in Nanning and was the most suitable for popularizing planting in Nanning;the Pingguo seed source was the second most suitable,and Jingxi and Chongzuo seed sources are not recommended for planting and cultivation in Nanning.
Aspidopterys concavaGuangxi provenanceassociated plant speciesnative soilgrowth indexevaluation after introduction
万方数据
维普
