Below-Plant Mirrors Improve Serianthes Seedling Survival and Growth in Shade-Reference-Cited by-同舟云学术

Below-Plant Mirrors Improve Serianthes Seedling Survival and Growth in Shade

Published:2024-08-21 Issue:8 Volume:14 Page:1854
ISSN:2073-4395
Container-title:Agronomy
language:en
Short-container-title:Agronomy

Author:

Marler Thomas E.¹^ORCID

Affiliation:

1. Philippine Native Plants Conservation Society Inc., Ninoy Aquino Parks and Wildlife Center, Quezon City 1101, Philippines

Abstract

Recruitment failures of Serianthes nelsonii are among the threats to this species’ recovery, yet adaptive management research to understand the causes of seedling mortality is lacking. Insufficient available light in the in situ forest floor is one factor that may be involved, and below-plant reflection of incident light may improve seedling survival. Mirrors were placed beneath S. nelsonii, Serianthes grandiflora, and Serianthes kanehirae seedlings in container nursery conditions and S. grandiflora seedlings in a closed-canopy forest to determine the influence of the additional reflected light on seedling survival and growth. Below-plant mirrors increased nursery seedling survival for S. nelsonii and S. kanehirae, with 75% combined survival without mirrors and 88% combined survival with mirrors. Below-plant mirrors increased stem height by 51% for the three species, with greater stem diameter and ending leaf number also occurring for plants with mirrors. Below-plant mirrors increased S. grandiflora seedling survival to 161% and longevity to 236% compared to plants without mirrors under forest cover. The plants receiving mirrors also increased by 175% in height, 60% in stem diameter, and 117% in leaf number compared to the plants without mirrors. These findings indicate that passive solar engineering by exploiting below-plant light reflection may be used as a Serianthes conservation protocol to improve seedling survival and growth under shaded conditions.

Publisher

MDPI AG

Link

https://www.mdpi.com/2073-4395/14/8/1854/pdf

Reference32 articles.

1. United States Fish and Wildlife Service (1987). Determination of endangered status for Serianthes nelsonii Merr. (Hayun lagu or Tronkon Guafi). Fed. Regist., 52, 4907–4910.

2. Wiles, G., and Williams, E. (2017). Serianthes nelsonii. IUCN Red List Threatened Species, International Union for Conservation of Nature (IUCN).

3. United States Fish and Wildlife Service (1994). Recovery Plan for Serianthes nelsonii, USFWS.

4. Number of emerged seedlings and seedling longevity of the non-recruiting, critically endangered Håyun lågu tree Serianthes nelsonii Merr. (Fabales: Leguminosae) are influenced by month of emergence;Marler;J. Threat. Taxa,2015

5. Extreme wind events influence seed rain and seedling dynamics of Guam’s Serianthes nelsonii Merr;Marler;Trop. Conserv. Sci.,2019