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Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (16): 30-34.doi: 10.11924/j.issn.1000-6850.2013-3388

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Study on Grading Standard of Seedling Quality of One Year Old Container Seedlings of Phoebe zhennan

  

  • Received:2013-12-28 Revised:2014-02-24 Online:2014-06-05 Published:2014-06-05

Abstract: In order to improve the survival ratio of planting seedlings of Phoebe zhennan, the grading standard of 1 years old container seedlings of Phoebe zhennan was studied using cluster analysis. The results showed that the seedling quality might be estimated by seedling height and basal diameter. Three grades were determined: Grade One (seedling height≥ 38 cm, basal diameter≥ 0.65 cm), Grade Two (38 cm> seedling height≥ 31.7 cm, 0.65 cm> basal diameter≥ 0.56 cm), Grade Three (seedling height< 31.7 cm, basal diameter< 0.56 cm).