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Study on the Growth Rhythm of Aquilaria sinensis Seedlings at Seedling Stage

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【Author】 ZHONG Yu*,LIANG Guo-xiao,LIU Xiao-wei Guangxi Academy of Forestry,Nanning,Guangxi 530002,China

【摘要】 [Objective] To better understand the growth rhythm of Aquilaria sinensis seedlings and culture high-quality seedlings for market demands.[Method] The growth rhythm of the container seedlings of semiannual Aquilaria sinensis was studied,the effect of meteorological factors on seedlings growth was analyzed,and the daily growth rate of the container seedlings was detected by ordered sample cluster analysis method.[Result] The growth period of the container seedlings of semiannual Aquilaria sinensis could be divided into four stages:early growth stage,rapid growth stage,slow growth stage and late growth stage.And the growth of basal diameter was divided into three phases of early growth stage,fast growth stage and late growth stage.Different seeding culture measures should be adopted according to the characteristics of different growth stages,at the early growth stage,more attention should be paid to such daily care as shading,weeding,chemical spraying and disease preventing and so on,so as to promote the growth of roots;at the rapid growth stage,the focus should be on the fertilization of high N,low P and K,the retention of soil moisture and comprehensive weeding;the slow growth stage should focus on decreasing the N fertilization proportion,improving the application proportion of P and K fertilizers,appropriately reducing the sprayed water amount,and controlling the pests and diseases;the emphasis of the late growth stage should be laid on stopping fertilization,decreasing water spraying,shading and preventing frost disasters,so as to promote the lignification of seedlings and improve the drought and cold-resistant capacity.[Conclusion] The study could provide guidance for the scientific and rational culturing of Aquilaria sinensis seedlings.

【基金】 Supported by the Project of National Development and Reform Committee
  • 【分类号】S792.99
  • 【下载频次】12
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