Pollen precedence and stigma closure: a mechanism of competition for pollination between Delphinium nelsonii and Ipomopsis aggregata

Abstract

Foreign pollen precedence decreased mean seed set by almost 50%, which is consistent with effects observed in previous experiments and can be explained by the fact that foreign pollen often caused stigma lobes to close together within 1.5–6 h, reducing subsequent receptivity.

Knowledge graph centered on Pollen precedence and stigma closure: a mechanism with 17 nodes and 67 connections. Top connected: Competition for hummingbird pollination and sequen, Ipomopsis, Delphinium, I. aggregata, Ipomopsis aggregata.

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