西南林业大学学报2025，Vol.45Issue(3)：20-25,6.DOI:10.11929/j.swfu.202406038
平茬对不同苗龄云南松苗木萌蘖能力的影响
Effect of Stumping on the Sprouting Ability of Pinus yunnanensis with Different Seedling Ages
摘要
Abstract
To discuss the response of different seedling ages of Pinus yunnanensis to the sprouting ability after stumping,P.yunnanensis seedlings aged 6 months,10 months,14 months,18 months,and 30 months were flattened to obtain 5 treatments in this study.The cumulative number of sprouts,net number of sprouts,and sprout length were measured,and the response of their sprouting ability was analyzed every month from 30 days after stumping.The results showed that the cumulative number of sprouts of P.yunnanensis seedlings with different seedling ages after stumping followed a logistic growth process,increasing with the increase of seedling age.The fast-growing point of M6,M10,M14 and M18 were close and appeared in 60 days after stumping,while the fast-growing point of M30 appeared in 116 days after stumping.The number of net sprouts showed a trend of first in-creasing and then decreasing with growth time,tending to be gentle.Aside from M30 having the largest number of net sprouts at 180 days after stumping,the highest number of net sprouts from other seedling ages occurred at 30 days after stumping.After 240 days of stubble treatment,M6 and M30 showed the highest percentage of ef-fective sprouts out of the total number of sprouts,which were 17.54％and 26.46％,respectively.M6 had a surviv-al rate of 80％,while the survival rate of M30 was only 20.75％,despite the longer cultivation time.The number of effective sprouts in M10,M14 and M18 increased but in much lower numbers than in M6 and M30 at 480 days after stumping.The experimental results indicate that different seedling ages of P.yunnanensis have different re-sponses to the sprouting ability after stumping,stumping at 6 months of seedling cultivation has the better effect and can obtain high-quality sprouts.关键词
云南松/苗龄/平茬/萌蘖能力Key words
Pinus yunnanensis/seedling age/stumping/sprouting ability分类
农业科技引用本文复制引用
潘子幸,郑超凡,王丹,贺斌,陈林,蔡年辉,陈诗,许玉兰..平茬对不同苗龄云南松苗木萌蘖能力的影响[J].西南林业大学学报,2025,45(3):20-25,6.基金项目
国家自然科学基金项目(32360381)资助 （32360381）
云南省农业联合专项重点项目(202301BD070001-152)资助 （202301BD070001-152）
云南省农业联合专项面上项目(202301BD070001-035)资助 （202301BD070001-035）
云南省万人计划青年拔尖人才项目(YNWR-QNBJ-2019-075)资助 （YNWR-QNBJ-2019-075）
云南省研究生导师团队建设项目(2022-97)资助. （2022-97）
