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季节性干旱条件下不同杉木品系的早期生长分析
何剑强,肖利军,彭智华
0
(肇庆市国有清桂林场)
摘要:
以连续发生的季节性干旱天气为背景,对广东肇庆市国有清桂林场2年生杉木区域试验林中不同品系的适应性及生长表现进行测定分析,发现不同品系生长性状差异较为显著,地径变异系数较大,达到33.5%。综合保存率、树高、地径生长情况可知,广东杉木2.5代种子园子代表现最佳,其次为T-c04、TL5、洋061等品系,T-c07、洋020等两个品系在此次测定中表现不佳。
关键词:  季节性干旱  杉木  生长表现  多重比较
DOI:
投稿时间:2021-08-21修订日期:2021-08-25
基金项目:广东省重点领域研发计划(2020B020215001)资助; 中央财政林业改革发展资金(〔2018〕GDTK-15号)资助。
Early growth performance of different Cunninghamia lanceolata cultivars under seasonal drought conditions
,,peng zhihua
()
Abstract:
The adaptability and growth performance of 2-year-old trees of different cultivars of Chinese fir (Cunninghamia lanceolata) were measured and analyzed under the background of continuous seasonal drought. It was found that there were significant differences in growth traits and conserved rate among cultivars, and the coefficient of variation in ground diameter was up to 33.5%. The offspring of 2.5 generation seed orchards of Chinese fir of Guangdong showed the best performance. Clone T-c04, TL5 and Yang061 appeared to be the second set, while T-c07 and Yang 020 were not good in this test.。
Key words:  Seasonal drought conditions  Chinese fir  Growth performance  Multiple comparisons

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