干旱区生态环境知识资源中心(Arid): 绿洲与沙漠地带疏叶骆驼刺(Alhagi sparsifolia.)光合生理特征的适应差异

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	绿洲与沙漠地带疏叶骆驼刺(Alhagi sparsifolia.)光合生理特征的适应差异
其他题名	Differences of photosynthetic and physiological adaption between oasis and dersert on Alhagi sparsifolia
	骆郴 1; 谭勇 1; 刘彤 2; 龚海涛 1; 魏鹏 1; 张艳红 1
ISSN	1000-6060
出版年	2006
卷号	29 期号:4 页码:503-509
中文摘要	光系统Ⅱ的电子传递、生物量积累和形态变化三个方面对比研究了新疆石河子地区绿洲和沙漠生境下疏叶骆驼刺(Alhagi sparsifolia Shap.)光合生理特征的适应特点,发现两地Pn(净光合速率)特征值表现出清晨高,午后低的节律变化.沙漠生境下疏叶骆驼刺具有光饱合点高、蒸腾速率低和高水分利用率的特点,而绿洲生境下疏叶骆驼刺则通过较高的蒸腾速率来维持其高的光合速率,表现出高蒸腾、高光合的特点.二个样点Pn都与gs,WUE相关显著,而受Fv/Fm和水势变化的影响较小.认为疏叶骆驼刺对新疆沙漠和绿洲二种生境具有良好的环境适应性,并形成了不同的光合生理的适应特点;沙漠环境虽然不利于种群繁殖,但不影响疏叶骆驼刺的个体生长.
英文摘要	Gas exchange of Alhagi sparsifolia Shap. between oasis and desert were studied from three aspects, which are electron transferation, biomass accumulation and morphologic. The humidity is higher in desert than oasis because of the extent temperature changes,but the PPED is similar at the same time, we select the Unfolding leaf as object which come from 8 healthy plants, we using li - 6400 to measure Pn,Gs,WUE( water using effect) ,E(Transpiration Rate) at each 2 hours,3 times and draw the diurnal courses of photosynthesis. For finding out the difference of adaption contrastively, we also measure the diurnal fluorescence after 20 minitue dark - adapted, leaf water potential (WP) is measure by PSYPRO. After measure above we take all plants back then meaure the biomass. We discovered that the rhythm of Pn(net photosynthetic rate) between oasis and desert is same, up in morning and lower at noon. The population of desert has higher light saturation, lower net of transpiration and higher WUE compare with the oasis population. The oasis population has higher transpiration to maintain the upper photosynthesis. Both in oasis and desert population, Pn and gs Pn and WUE, has significant correlation, but Pn is not affected by Fv/Fm and WP( water potential). We concluded that A. sparsifolia is very adaptive and form a difference photosynthetic charactersy the desert habitation is not suit to propagation,but in not affect the growth.
中文关键词	疏叶骆驼刺 ; 气体交换 ; 绿洲
英文关键词	Fv/Fm Pn WUE Alhagi sparsifolia gas exchange Fv/Fm Pn WUE oasis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:2420997
来源机构	石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219691
作者单位	1.新疆石河子大学生命科学院, 石河子, 新疆 832003, 中国; 2.新疆兵团绿洲生态农业重点实验室, 石河子, 新疆 832003, 中国
推荐引用方式 GB/T 7714	骆郴,谭勇,刘彤,等. 绿洲与沙漠地带疏叶骆驼刺(Alhagi sparsifolia.)光合生理特征的适应差异[J]. 石河子大学,2006,29(4):503-509.
APA	骆郴,谭勇,刘彤,龚海涛,魏鹏,&张艳红.(2006).绿洲与沙漠地带疏叶骆驼刺(Alhagi sparsifolia.)光合生理特征的适应差异.,29(4),503-509.
MLA	骆郴,et al."绿洲与沙漠地带疏叶骆驼刺(Alhagi sparsifolia.)光合生理特征的适应差异".29.4(2006):503-509.