| 不同水分管理对楸树苗木速生期生长及生理的影响 |
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| 引用本文： | 胡语婕,韦小丽,李建勇. 不同水分管理对楸树苗木速生期生长及生理的影响[J]. 福建林业科技, 2009, 36(4). DOI: 10.3969/j.issn.1002-7351.2009.04.037 |
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| 作者姓名： | 胡语婕 韦小丽 李建勇 |
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| 作者单位： | 1. 贵州大学林学院,贵州,贵阳,550025;广西大学农学院,广西,南宁,530005
2. 贵州大学林学院,贵州,贵阳,550025 |
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| 基金项目： | 贵州大学引进人才基金"贵州主要速生阔叶树种苗木根系综合质量研究"，贵州大学SRT项目 |
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| 摘 要： | 以贵州主要阔叶造林树种楸树为研究对象,采用人工控制土壤含水量的盆栽试验方法,研究楸树苗木速生期不同水分管理对幼苗苗高、地径、根系生长、生物量分配以及生理质量指标的影响。结果表明:速生期楸树幼苗最适宜的土壤含水量为100%田间持水量,一般应保持在80%~100%田间持水量之间,低于80%田间持水量,会使楸树幼苗的苗高与地径生长、根系发育、生物量积累都受到严重的限制,苗木生理质量指标叶绿素含量、根系活跃吸收面积和叶片相对含水量明显降低,而叶片质膜透性增加,细胞膜受到严重伤害;在40%田间持水量时,幼苗因干旱而死亡。
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| 关 键 词： | 楸树幼苗 速生期 水分管理 生长性状 生理指标 |
The Influence of Different Water Management on Seedling Growth and Physiology of Catalpa bungei at Rapid Growth Stage |
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| HU Yu-jie,WEI Xiao-li,LI Jian-yong. The Influence of Different Water Management on Seedling Growth and Physiology of Catalpa bungei at Rapid Growth Stage[J]. Journal of Fujian Forestry Science and Technology, 2009, 36(4). DOI: 10.3969/j.issn.1002-7351.2009.04.037 |
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| Authors: | HU Yu-jie WEI Xiao-li LI Jian-yong |
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| Affiliation: | HU Yu-jie1,2,WEI Xiao-li1,LI Jian-yong1,2(1.College of Forestry,Guizhou University,Guizhou 550025,Guiyang,China,2.Agricultural College,Guangxi University,Nanning 530005,Guangxi,China) |
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| Abstract: | The research object was Catalpa bungei,a main broad-leaf afforestation tree species in Guizhou.By the pot tests of controlling artificially the soil water content.The result indicated that 100% of field capacity was most suitable for growth of Catalpa bungei seedling at rapidly growth stage,under normal condition,the soil water moisture should be controlled with 80%-100% of field capacity.When the soil water moisture was lower than 80% of field capacity,the growth of height,diameter,root growth and biomass ... |
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| Keywords: | Catalpa bungei seedling rapid growth stage water management growth index physiological index |
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