JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2018, Vol. 42 ›› Issue (03): 199-203.doi: 10.3969/j.issn.1000-2006.201708030

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The germination and fertilization of Pinus kesiya grafting

TANG Yingzhou1,TANG Hongyan2*   

  1. 1.College of Forestry,Southwest Forestry University,Kunming 650224,China; 2.Pu’ er Institute of Forestry, Pu’ er 665099, China
  • Online:2018-06-06 Published:2018-06-06

Abstract: Abstract: 【Objective】The initiation and duration of the sprout period of Pinus kesiya grafting in Puer, Yunnan Province was investigated in order to improve the survival rate of grafting by fine management of the seedlings during its nursery. 【Method】The germination characteristics of the grafting seedlings were studied with the fully lignified panicle of P. kesiya from four different districts and the clonal seeds of P.kesiya as rootstock for cleft grafting from Jinggu County. P. kesiya from Manxieba Simao District were selected to investigate the effect of compound fertilizer and biofungicide on the growth of the grafting seedlings of P. kesiya. 【Results】The results showed that the germination period of the grafting seedling was 25 to 48 days after grafted and the effect of fertilizer treatment on the growth of P. kesiya was significant. The growth rate of the ground diameter of seedling was significantly increased by applying 15 g of compound biofungicide, which was up to 65.66%. The effect of 15 g compound fertilizer for seedling on grafting was significant as well, with the growth rate at 577.40%.【Conclusion】We should pay attention to the fine management and cultivation of P. kesiya especially from day 25 to day 48 after grafting. The proper use of compound fertilizer and biofungicide could facilitate the growth rate of ground diameter and scion and improve the survival rate of grafting.

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