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Journal of Plant Biology

, Volume 62, Issue 2, pp 103–108 | Cite as

Changes in Reproductive Strategy of an Early Successional Species Penthorum chinense in Response to Nutrient and Moisture Levels

  • Yun Young Yang
  • Jae Geun KimEmail author
Original Article
  • 18 Downloads

Abstract

Variation in resource allocation to clonal growth versus sexual reproduction suggests that plants have different adaptive strategies in response to environmental conditions such as nutrient availability and soil moisture. Seeds of P. chinense might play an important role in expanding its established populations. We hypothesize that an early successional perennial plant Penthorum chinense Pursh with many seeds and small rhizomes does not increase its allocation to rhizome propagules and/or decrease its allocation to seeds under sufficient nutrient content or moisture conditions, unlike many other perennials. We performed mesocosm experiments to understand how P. chinense could alter resource allocation to rhizomes and seeds under experimental manipulation of water and nutrient availability. Like many perennials, P. chinense contained more rhizome dry mass and rhizome mass fraction under favorable nutrient content condition than with relatively low nutrient levels. However, P. chinense did not decrease its allocation to seeds under sufficient nutrient condition. It did not change its allocation to rhizome propagules or seeds under high moisture level either, unlike other perennials. These results suggest that both rhizomes and seeds of P. chinense might be important for expanding its established populations.

Keywords

Niche Phenotypic plasticity Plant development and life-history traits Reproductive allocation Tolerance 

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Copyright information

© Korean Society of Plant Biologists 2019

Authors and Affiliations

  1. 1.Graduate School of Interdisciplinary Program in Environmental EducationSeoul National UniversitySeoulKorea
  2. 2.Department of Biology EducationSeoul National UniversitySeoulKorea
  3. 3.Center for Education ResearchSeoul National UniversitySeoulKorea

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