[1]徐军,陈海玲*,李清河,等. 土壤水分含量对白刺幼苗表型可塑性生长的影响[J].西北林学院学报,2017,32(2):101-105.[doi:10.3969/j.issn.1001-7461.2017.02.17]
 XU Jun,CHEN Hai-ling*,LI Qing-he,et al. Phenotypic Plasticity of Nitraria tangutorum Response to Water Change[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2017,32(2):101-105.[doi:10.3969/j.issn.1001-7461.2017.02.17]
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 土壤水分含量对白刺幼苗表型可塑性生长的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第32卷
期数:
2017年第2期
页码:
101-105
栏目:
出版日期:
2017-03-31

文章信息/Info

Title:
 Phenotypic Plasticity of Nitraria tangutorum Response to Water Change
文章编号:
1001-7461(2017)02-0101-05
作者:
 徐军1陈海玲1*李清河2董礼隆1吕永军1段娜1马迎宾1李帅1段瑞兵1
 (1.中国林业科学研究院 沙漠林业实验中心,内蒙古 磴口 015200;2.中国林业科学研究院 林业研究所,国家林业局林木培育重点实验室,北京 100091)
Author(s):
 XU Jun1CHEN Hai-ling1*LI Qing-he2DONG Li-long1LYU Yong-jun1DUAN Na1MA Ying-bin1LI Shuai1DUAN Rui-bing1
 (1.The Desert Forest Experimental Centre of the Chinese Academy of Forestry,Dengkou,Inner Mongolia 015200,China;2.Research Institute of Forestry,Chinese Academy of Forestry,Key Laboratory of Tree Breeding and Cultivation,Beijing 100091,China)
关键词:
 白刺形态特征土壤水分变化根冠比叶绿素
Keywords:
Nitraria tangutorum morphological characteristicsoil water change R/S chlorophyll
分类号:
S793.9
DOI:
10.3969/j.issn.1001-7461.2017.02.17
文献标志码:
A
摘要:
 为探讨不同的土壤水分含量对白刺幼苗表型可塑性生长的影响,通过盆栽试验,在不同的土壤水分条件下,对白刺的生长特性、生物量积累及分配和叶绿素含量等方面进行研究。结果表明:在土壤含水量为70%条件下,白刺的株高、基茎等生长指标和叶绿素含量均达到最大值;随土壤水分含量的降低,白刺的根干重、茎干重、叶干重及总生物量均呈先增加后降低的趋势,白刺生物量茎的分配指数呈先上升后下降的趋势,叶则相反,根冠比呈增加趋势;随土壤水分含量的降低,叶绿素a、叶绿素b及叶绿素总量均呈先增加后降低的趋势。综上分析,土壤含水量达到70%时,是最适宜白刺生长的土壤水分含量;在不同的土壤水分条件下,白刺通过调整形态特征和各器官生物量的分配产生可塑性影响。
Abstract:
 In order to study the phenotypic plasticity of Nitraria tangutorum,a pot cultivation experiment was conducted.The growth characteristics,biomass accumulation and allocation,chlorophyll content in the seedlings were investigated under different soil water conditions.The results showed that the seedling height,stem growth and chlorophyll content reached maximum at the 70% soil water content.With the decrease of soil water,the root dry weight,stem dry weight,leaf dry weight,and total biomass increased first and then decreased.The biomass distribution index of the stem increased and then decreased,and opposite in the leaves.R/S showed an increasing trend,chlorophyll a,and b and total chlorophyll content showed a trend of increase first and then decreased.Based on the analysis,70% soil water content was the most suitable for the growth of N.tangutorum.To response different soil water conditions,the plant adjusted the morphological characteristics and the distribution of organ biomass.

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备注/Memo

备注/Memo:
 收稿日期:2016-07-27修回日期:2016-09-30
基金项目:中央级公益性科研院所基本科研业务费专项资金“白刺可塑性对水分异质条件的响应机制”(CAFYBB2014QA034)。
作者简介:徐军,男,工程师,研究方向:荒漠化防治及植物遗传育种。E-mail:xujunslzx@163.com
*通信作者:陈海玲,女,工程师,研究方向:植物逆境生理生态及遗传育种。E-mail:chenhling@163.com
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