湖南生态科学学报2026，Vol.13Issue(1)：64-69,6.DOI:10.3969/j.issn.2095-7300.2026.01.007
不同预处理方式对极危树种巧家五针松种子萌发的影响
Effects of Different Pretreatments on Seed Germination in the Critically Endangered Tree Species Pinus squamata
徐颂明 1陈一锋 2杨峰 3谢镇 1潘洪峰 1李梦佳1
作者信息
- 1. 桐庐县森林病虫害防治和野生动物保护站,浙江 杭州 311500
- 2. 杭州啄木鸟古树救护有限公司,浙江 杭州 311300
- 3. 桐庐县林场,浙江 杭州 311500
- 折叠
摘要
Abstract
[Objective]This study aims to evaluate the effects of diverse pretreatments on seed germi-nation in the critically endangered species Pinus squamata,and to provide a scientific and technical foun-dation for facilitating its natural population regeneration and recovery.[Method]Following the assessment of basic seed characteristics,the efficacy of multiple pretreatments,including dry heat shock,moist heat shock,gibberellin application,and plant ash extract,on seed germination was compared.[Result]Mod-erate-intensity dry heat shock(80℃for 1 min)significantly enhanced seed germination,resulting in a germination rate(31.7%)and germination rate index(1.023)that were both markedly superior to those of the control group(20.0%and 0.767)(P<0.01).Other treatments,such as moist heat shock at dif-ferent intensities,gibberellin,and plant ash extract,exhibited no significant promotive effects;some treatments even entirely inhibited germination.[Conclusion]An appropriate-intensity dry heat shock serves as an effective physical method for stimulating seed germination in Pinus squamata.However,poor seed quality,characterized by a high proportion of empty seeds and a low harvest index,constitutes a critical limiting factor for germination.The dormancy mechanism in this species may not predominantly rely on the gibberellin-regulated pathway.关键词
巧家五针松/种子萌发/干热激/赤霉素/种子品质Key words
Pinus squamata/seed germination/dry heat shock/gibberellin/seed quality分类
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徐颂明,陈一锋,杨峰,谢镇,潘洪峰,李梦佳..不同预处理方式对极危树种巧家五针松种子萌发的影响[J].湖南生态科学学报,2026,13(1):64-69,6.
