| 荔枝树体生物量的构成特点 |
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| 引用本文： | 陈菁,樊小林,孙光明.荔枝树体生物量的构成特点[J].果树学报,2008,25(6):860-863. |
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| 作者姓名： | 陈菁 樊小林 孙光明 |
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| 作者单位： | [1]华南农业大学肥料与平衡施肥研究室,广州天河区510642 [2]中国热带农业科学院南亚热带作物研究所,广东湛江524091 |
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| 基金项目： | 支撑计划，，农业部948项目(2003-Z91):中国热带农业科学院南亚热带作物研究所中央级公益性科研院所基本科研业务专项 |
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| 摘 要： | 采用整株枝解法,在采果后把9a生成年妃子笑和黑叶、3a生幼年妃子笑荔枝的根、木质部、韧皮部、叶、复叶柄5个器官分成14～16个部位,分别测定各个部位各个器官的生物量,以探讨不同品种、不同树龄荔枝生物量构成的特点,为荔枝修剪和计算树体养分累积量提供依据。结果表明,(1)9a生妃子笑荔枝整株干质量为41784g,其中侧枝占比重最大(48.5%),其次为叶(23.8%),根系(15.2%),最小为复叶柄(2.7%);在枝干中,木质部占整株比例(45.7%)远大于韧皮部(10.2%);(2)同树龄成年妃子笑与黑叶2个品种,妃子笑叶占干质量比例大于黑叶(12.9%),而黑叶枝干占干质量比例(62.4%)则大于妃子笑;(3)成年妃子笑荔枝树侧枝、枝干木质部占整株干质量比例大于幼龄树,而叶片的比例小于幼年树。叶片比例降低和侧枝占比例增加成为荔枝走向成熟和衰老的标志;(4)荔枝枝条木韧比与其直径存在显著正相关,根系木质部/韧皮部比例要远大于地上部同一直径枝条木/韧比例。
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| 关 键 词： | 荔枝 器官 生物量 构成 |
Compositional analysis of litchi biomass |
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| CHEN Jing,FAN Xiao-lin,SUN Guang-ming.Compositional analysis of litchi biomass[J].Journal of Fruit Science,2008,25(6):860-863. |
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| Authors: | CHEN Jing FAN Xiao-lin SUN Guang-ming |
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| Institution: | CHEN Jing1,2,FAN Xiao-lin1,SUN Guang-ming2(1South China Agricultural University,Tianhe,Guangzhou,Guangdong 510642 China,2South Subtropical Crops Research Institute,CATAS,Zhanjiang,Guangdong 524091 China) |
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| Abstract: | Total of 9 3-year-old litchi cv.Feizixiao(Litchi chinensis Sonn.) trees and 9-year-old litchi cv.Heiye(Litchi chi-nensis Sonn.) trees were uprooted and divided into 14 to 15 parts belonging to 5 organs(root,xylm,phloem,leaf,stalk) after harvest for compositional analysis of litchi biomass.The results showed as follows:(1) Total dry biomass of 9-year-old Feizix-iao tree was 41 784 g in which the lateral shoots accounted for 48.5%,leaves for 23.8% and roots for 15.2%,2.7% for stalk,respectively.In the stem an... |
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| Keywords: | Litchi Organs Biomass Component |
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