Relationships Among Injury, Growth, and Yield Responses of Soybean Cultivars Exposed to Ozone at Different Light Intensities
Relationships Among Injury, Growth, and Yield Responses of Soybean Cultivars Exposed to Ozone at Different Light Intensities
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不同光强臭氧暴露下大豆品种的损伤、生长和产量反应之间的关系
DOI：
10.2134/jeq1982.00472425001100040027x
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
M. B. Letchworth
中科院分区：
文献类型：
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作者：
A. Heagle;M. B. Letchworth
4个大豆品种（Glycine max (L.)）稳定。简历。Forrest, Davis， Ransom和Bragg)在植被生长过程中对O/sub - 3/的叶片敏感性和茎重响应不同，从苗期到成熟期暴露于O/sub - 3/，以确定产量响应是否与营养响应相关。品种叶片损伤和营养枝重对O/sub - 3/的响应均不能合理预测品种对O/sub - 3/的产量响应。这种不足可能与品种耐受性的差异有关。适度的O/sub - 3/诱导的损伤和病变生长的Bragg产生的结果与对照组一样好。Davis有中等程度的O/sub - 3/诱导损伤和生长下降，产量比对照组低34%。4个品种在不同遮光程度的露天室内生长，以确定光强是否会改变它们对O/sub 3/的响应。无遮荫露天室内的光强比露天室内低9%；在侧面或顶部覆盖遮光布的室分别降低了15%和19%的光强。遮荫处理没有改变总体产量对O/sub 3/的响应，也没有改变相对品种对O/sub 3/的响应。参考文献，6个表格。«少
Four soybean cultivars (Glycine max (L.) Merr. cv. Forrest, Davis, Ransom, and Bragg) differing in foliar sensitivity and shoot weight response to O/sub 3/ during vegetation growth were exposed to O/sub 3/ from the seedling stage to maturity to determine if the yield response correlated with the vegetative response. Neither the foliar injury nor the vegetative shoot weight response of cultivars to O/sub 3/ allowed reasonable prediction of the cultivar yield response to O/sub 3/. This inadequacy may relate to differences in cultivar tolerance. Bragg, with moderate amounts of O/sub 3/-induced injury and with diseased growth, yielded as well as the controls. Davis, with moderate amounts of O/sub 3/-induced injury and decreased growth, yielded 34% less than the controls. The four cultivars were grown in open-top field chambers with different degrees of shading to determine whether light intensity would alter their response to O/sub 3/. Light intensity in nonshaded open-top field chambers was 9% less than that in an open field; chambers with shade cloth covering the sides or tops decreased light intensity by 15 and 19%, respectively. The shade treatments did not change overall yield response to O/sub 3/ or the relative cultivar yield response to O/sub 3/. 16more » references, 6 tables.« less