Arid
DOI10.1016/j.indcrop.2004.02.004
Temperature effects on leaf properties, resin content, and composition in Grindelia chiloensis (Asteraceae)
Wassner, DE; Ravetta, DA
通讯作者Wassner, DE
来源期刊INDUSTRIAL CROPS AND PRODUCTS
ISSN0926-6690
出版年2005
卷号21期号:2页码:155-163
英文摘要

Grindelia chiloensis (Asteraceae) is a shrub native to the Patagonia and Monte regions of Argentina, presently under investigation as a resin crop. The rate of production of diterpene resin-acids is, in part, determined by environmental conditions and can be manipulated changing water, nitrogen, and radiation availability. Although the theory predicts that resin content should increase with low temperature, this response has not been tested, yet. The objective of this work was to test whether the response of resin production to temperature predicted by the Growth-Differentiation-Balance Hypothesis (GDBH) is found in G. chiloensis. Cloned plants of G. chiloensis were grown in greenhouses under different temperature regimes. Structural and functional characters were measured. Leaf resin and stem total non-structural carbohydrate content (TNC) were higher in plants grown at sub-optimal temperature (low temperature) for growth, whereas assimilation rate was not affected, in accordance with predictions. Under low temperature, specific leaf weight (SLW) and leaf-stem ratio were higher due to reductions in leaf expansion and stem growth, whereas individual leaf mass was not affected. Resin composition was slightly affected by temperature, suggesting that it is under strong genetic control. The stimulant effect of restrictive environmental conditions (low temperature in our study) required to compensate for the short growing season found in cooler environments such as Patagonia, appears insufficient to compensate for the reductions in aboveground biomass, thus resulting in lower resin production per plant. (c) 2004 Elsevier B.V. All rights reserved.


英文关键词new crops arid lands Patagonia terpenes growth-differentiation-balance
类型Article
语种英语
国家Argentina
收录类别SCI-E
WOS记录号WOS:000227603600001
WOS关键词BIOMASS PRODUCTION ; GROWTH ; EMISSION ; QUERCUS ; LEAVES ; LIGHT
WOS类目Agricultural Engineering ; Agronomy
WOS研究方向Agriculture
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/149268
作者单位(1)Univ Buenos Aires, Catedra Cultivos Ind, Buenos Aires, DF, Argentina;(2)Univ Buenos Aires, Fac Agron, IFEVA, Buenos Aires, DF, Argentina
推荐引用方式
GB/T 7714
Wassner, DE,Ravetta, DA. Temperature effects on leaf properties, resin content, and composition in Grindelia chiloensis (Asteraceae)[J],2005,21(2):155-163.
APA Wassner, DE,&Ravetta, DA.(2005).Temperature effects on leaf properties, resin content, and composition in Grindelia chiloensis (Asteraceae).INDUSTRIAL CROPS AND PRODUCTS,21(2),155-163.
MLA Wassner, DE,et al."Temperature effects on leaf properties, resin content, and composition in Grindelia chiloensis (Asteraceae)".INDUSTRIAL CROPS AND PRODUCTS 21.2(2005):155-163.
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