GROWTH-RESPONSES OF BARLEY EXPOSED TO SO2

被引：4
作者：
MURRAY, F
WILSON, S
机构：
[1] Biological and Environmental Science, Murdoch University, Murdoch
来源：
NEW PHYTOLOGIST | 1990年 / 114卷 / 03期
关键词：
barley; pollution; Sulphur dioxide; sulphur nutrition;
D O I：
10.1111/j.1469-8137.1990.tb00422.x
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Barley (Hordeum vulgare ev. Schooner) plants were exposed to 4, 42, 121, 256 or 517 nl 1−l SO2 to investigate the relationship between the exposure concentration of SO2 and growth. The plants were exposed from 14 days old, in open‐top chambers for 4 h day−1 (10.00‐14.00 h) for 79 days. The concentration‐response curves established illustrated a small growth stimulation (approx. 10%) at 42 nl 1−1 and a growth inhibition at 121 nl 11− or greater. The growth reduction was generally proportional to the exposure concentration at concentrations above 42 nl 1−1 Sulphur concentration in the shoot increased linearly with ambient SO2 concentration. Copyright © 1990, Wiley Blackwell. All rights reserved
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页码：537 / 541
页数：5
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