广西林业科学2018，Vol.47Issue(2)：121-125,5.
杉木不同育苗方式苗木生长差异分析
Difference Analysis of Seedling Growth of Cunninghamia Lanceolata in Different Nursery Methods
摘要
Abstract
On the basis of promoting container nursery with light substrate of Cunninghamia lanceolata, the growth differences between 1-year-old container and bare-rooted seedlings of Chinese fir were studied from the growth,biomass,interval distribution of growth,the evaluation of seedling quality and the growth status of root system. Results showed that the average height and ground diameter of light medium container seedlings were 40.87 cm and 0.50 cm,respectively,which all reached the standard of Grade I seedlings. The average seedling height of the bare-rooted seedlings (43.35 cm) reached the standard of the grade I seedlings,and the average ground diameter (0.54 cm) only reached the level II seedlings. 73.3%of light medium container seedlings and 74.2% of bare-rooted seedlings distributed in the interval of 30 cm～50 cm. The difference of height distribution was small. 78.0%of light medium container seedlings and only 62.4%of bare-rooted seed-lings distributed in the interval of 0.3 cm～0.6 cm,which indicated that the ground diameter of light medium container seedlings grew more evenly. The number of lateral roots and root-shoot ratio of light medium contain-er seedlings were significantly higher than those of bare-rooted seedlings, which was beneficial to increase the survival rate of afforestation. The use of sand bed cultivation could obtain high quality and nursery rate of Chinese fir light medium container seedlings.关键词
杉木/育苗方式/生长量/生物量Key words
Cunninghamia lanceolata/nursery method/growth/biomass分类
农业科技引用本文复制引用
陈代喜,程琳,陈琴,谭文婧,董利军,何世坚,罗彩春,戴俊..杉木不同育苗方式苗木生长差异分析[J].广西林业科学,2018,47(2):121-125,5.基金项目
广西林业科技项目(桂林科字[2014]01号) （桂林科字[2014]01号）
国家重点研发计划项目(2016YFD0600302-3) （2016YFD0600302-3）
