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The effects of nutrient limitation on the response of Plantago major to ozone by C. P. WHITFIELD; A. W. DAVISON; T. W. ASHENDEN is a Agricultural and Biological Sciences article available to read on EtoBox.

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Most natural and semi‐natural communities are limited by major nutrients such as nitrogen (N) or phosphorus (P), but most experiments on the effects of ozone on wild plants have used nutrient‐rich composts or soil. In order to investigate interactions between ozone and low nutrient supply, two artificially selected lines (ozone‐resistant and ozone‐sensitive) of two populations __Plantago major__ ssp. __major__ L. were grown on a sandy loam, with (HN) and without (LN) addition of fertilizer. The soil was from a semi‐natural grassland that has never been fertilized. Plants were exposed to either charcoal/Purafil®‐filtered air (CF=<5 nl O~3~ l^−1^) or 70 nl O~3~ l^−1^ 7 h d^−1^ from the seedling stage to seed production. Poor growth (__c__. 25% of that in HN) of the low‐nutrient plants, and leaf concentrations of N and P showed that the LN plants were severely nutrient‐limited. In addition to affecting the total dry mass of the plants, the nutrient supply altered seed production, reproductive effort (number of seeds per total mass) and root‐to‐shoot allocation. Exposure to ozone had significant effects on physiology, growth, and seed production that varied with population, selection l

Who reads The effects of nutrient limitation on the response of Plantago major to ozone?

Author

C. P. WHITFIELD; A. W. DAVISON; T. W. ASHENDEN

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Cambridge University Press (CUP); Wiley (ISSN 0028-646X)

Published

1998

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)