Plant Responses to Climate Change: The Case Study of Betulaceae and Poaceae Pollen Seasons (Northern Italy, Vignola, Emilia-Romagna).

Plants (Basel) · 2016 · PMC5198102 · PMID 27929423

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a clear trendno p-value reported

By comparing the analyses from several towns located in Spain [ 29 ], some similarities are evident: oscillations of pollen concentration do not follow a clear trend, pollen season never exceeds 200 days, and the maximum value of concentration was reached in 2003.

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a decreasing trendno p-value reported

In all years, the pollen shows a decreasing trend in summer with some re-increase of concentration in June due to the blooming of Alnus viridis (especially visible in 1994 (see also [ 25 ])).

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