FREE-ENERGY TRANSFER IN PLANTS

被引：51

作者：

BOYER, JS

机构：

[1] Department of Botany, University of Illinois, Urbana

来源：

SCIENCE | 1969年 / 163卷 / 3872期

关键词：

D O I：

10.1126/science.163.3872.1219

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Free-energy transfer was used to study water transport through the soil-plant system. Resistances to free-energy transfer are proportional to resistances to water transfer. Under certain conditions, the proportionality factor is 1. For a sunflower plant in moist soil, plant resistance to free-energy transfer was 30 times the soil resistance, and root-stem-leaf resistances were in a ratio of about 2:1:1, respectively. However, root and leaf resistances were equal when considered for a unit pathlength.

引用

页码：1219 / &

共 13 条

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Kramer, PJ
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