Preliminary observation report on introduction cultivation of Malus spectabilis for plateau city landscaping in Qilian Mountain Area
In order to increase effect of plateau city landscaping in Qilian Mountain area,screen out cold resistance species with function of leaf viewing,flower viewing and fruit viewing,the six species of Malus Mill.M.micromalus Makino,M.hupehensis Rehder,M.sieboldii Rehder,M.halliana Koehne,M.honanensis Rehder,M.spectabilis Borkh were introduced from Shanxi,Hubei,Gansu,and other provinces,the phenological period observation,shoot growth determination,cold resistance statistics,and ornamental assessment were did.The result showed that the survival rate and the preservation rate of M.micromalus Makino,M.halliana Koehne,and M.honanensis Rehder were higher than other species,the cold resistance were stronger,the branches were dense,the form was short,which was easy to manage,and the comprehensive score of ornamental value ranked the top three among all introduced species,which should be applied firstly to plateau city landscaping in Qilian Mountain area.
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