منابع مشابه
Effect of stem water content on sap flow from dormant maple and butternut stems: induction of sap flow in butternut.
Sap flow from excised maple stems collected over the winter (1986/87) was correlated with stem water content. Stem water content was high in the fall (>0.80) and decreased rapidly during 2 weeks of continuous freezing temperatures in late winter (<0.60). Exudation of sap from stem segments subjected to freeze/thaw cycles was small (<10 mL/kg) in the fall, but substantial exudation (45-50 mL/kg)...
متن کاملThe Theory and Practice of Measuring Transport Coefficients and Sap Flow in the Xylem of Red Maple Stems (Acer rubrum)
In this paper we report measurements concerning the conductivity of water and ions and the interaction between the two in excised pieces of xylem of red maple stems under various conditions. We have also demonstrated that it is possible to detect the flow of solutions through the stems of maple by measuring the degree of interaction between the flow of water and ions. In this technique we apply...
متن کاملTree Species with Photosynthetic Stems Have Greater Nighttime Sap Flux
An increasing body of evidence has shown that nighttime sap flux occurs in most plants, but the physiological implications and regulatory mechanism are poorly known. The significance of corticular photosynthesis has received much attention during the last decade, however, the knowledge of the relationship between corticular photosynthesis and nocturnal stem sap flow is limited at present. In th...
متن کاملPrometheusWiki | Sap flow
Sap flow measurements provide a powerful tool for quantifying plant water use and monitoring qualitative physiological responses of plants to environmental conditions. As such, sap flow methods are widely employed to investigate the agronomic, ecological, and hydrological outcomes of plant growth. The following summary provides an overview of thermodynamic sap flow measurement techniques used t...
متن کاملInteractive Ion-Mediated Sap Flow Regulation in Olive and Laurel Stems: Physicochemical Characteristics of Water Transport via the Pit Structure
Sap water is distributed and utilized through xylem conduits, which are vascular networks of inert pipes important for plant survival. Interestingly, plants can actively regulate water transport using ion-mediated responses and adapt to environmental changes. However, ionic effects on active water transport in vascular plants remain unclear. In this report, the interactive ionic effects on sap ...
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ژورنال
عنوان ژورنال: Journal of Experimental Botany
سال: 1996
ISSN: 0022-0957,1460-2431
DOI: 10.1093/jxb/47.12.1833