Resource level as a proximate factor influencing fluctuations in male flower production in Cryptomeria japonica D. Don

Yuko Miyazaki, Takeshi Osawa, Yoshiaki Waguchi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Airborne pollen of Cryptomeria japonica causes severe pollinosis, and the number of people suffering from pollinosis has increased rapidly during recent decades. Male flower production in C. japonica shows annual variability; thus, predicting male flower production for the following spring could be a countermeasure against pollinosis. We analyzed factors that explain fluctuations in male flower production of C. japonica according to parameters reflecting internal resource dynamics based on field observations. In addition, we carried out experiments to regulate available resource levels using artificial shading to test the effect of internal resource levels on the number of male flowers produced. We found that temperature and precipitation in the previous summer and a relative increase in male flower production in the previous year were negatively related, whereas sunshine duration in the previous summer and diameter at breast height were positively related to the current year increase in male flower production. The number of male flowers was significantly reduced by the shading treatment and was positively correlated with the amount of total non-structural carbohydrates in the root. These results suggest that understanding the parameters controlling internal resource levels could lead to more accurate predictions of male flower production.

Original languageEnglish
Pages (from-to)358-364
Number of pages7
JournalJournal of Forest Research
Volume14
Issue number6
DOIs
Publication statusPublished - Dec 2009
Externally publishedYes

Fingerprint

Cryptomeria japonica
male flowers
flower
resource
hay fever
shading
artificial shade
summer
tree and stand measurements
carbohydrate
shade
solar radiation
pollen
carbohydrates
duration
prediction

Keywords

  • Artificial shading
  • Male flower production
  • Mass flowering
  • Resource dynamics
  • TNC

ASJC Scopus subject areas

  • Forestry

Cite this

Resource level as a proximate factor influencing fluctuations in male flower production in Cryptomeria japonica D. Don. / Miyazaki, Yuko; Osawa, Takeshi; Waguchi, Yoshiaki.

In: Journal of Forest Research, Vol. 14, No. 6, 12.2009, p. 358-364.

Research output: Contribution to journalArticle

@article{e2b6e3c886c74ee987aded14904cc556,
title = "Resource level as a proximate factor influencing fluctuations in male flower production in Cryptomeria japonica D. Don",
abstract = "Airborne pollen of Cryptomeria japonica causes severe pollinosis, and the number of people suffering from pollinosis has increased rapidly during recent decades. Male flower production in C. japonica shows annual variability; thus, predicting male flower production for the following spring could be a countermeasure against pollinosis. We analyzed factors that explain fluctuations in male flower production of C. japonica according to parameters reflecting internal resource dynamics based on field observations. In addition, we carried out experiments to regulate available resource levels using artificial shading to test the effect of internal resource levels on the number of male flowers produced. We found that temperature and precipitation in the previous summer and a relative increase in male flower production in the previous year were negatively related, whereas sunshine duration in the previous summer and diameter at breast height were positively related to the current year increase in male flower production. The number of male flowers was significantly reduced by the shading treatment and was positively correlated with the amount of total non-structural carbohydrates in the root. These results suggest that understanding the parameters controlling internal resource levels could lead to more accurate predictions of male flower production.",
keywords = "Artificial shading, Male flower production, Mass flowering, Resource dynamics, TNC",
author = "Yuko Miyazaki and Takeshi Osawa and Yoshiaki Waguchi",
year = "2009",
month = "12",
doi = "10.1007/s10310-009-0148-2",
language = "English",
volume = "14",
pages = "358--364",
journal = "Journal of Forest Research",
issn = "1341-6979",
publisher = "Springer Japan",
number = "6",

}

TY - JOUR

T1 - Resource level as a proximate factor influencing fluctuations in male flower production in Cryptomeria japonica D. Don

AU - Miyazaki, Yuko

AU - Osawa, Takeshi

AU - Waguchi, Yoshiaki

PY - 2009/12

Y1 - 2009/12

N2 - Airborne pollen of Cryptomeria japonica causes severe pollinosis, and the number of people suffering from pollinosis has increased rapidly during recent decades. Male flower production in C. japonica shows annual variability; thus, predicting male flower production for the following spring could be a countermeasure against pollinosis. We analyzed factors that explain fluctuations in male flower production of C. japonica according to parameters reflecting internal resource dynamics based on field observations. In addition, we carried out experiments to regulate available resource levels using artificial shading to test the effect of internal resource levels on the number of male flowers produced. We found that temperature and precipitation in the previous summer and a relative increase in male flower production in the previous year were negatively related, whereas sunshine duration in the previous summer and diameter at breast height were positively related to the current year increase in male flower production. The number of male flowers was significantly reduced by the shading treatment and was positively correlated with the amount of total non-structural carbohydrates in the root. These results suggest that understanding the parameters controlling internal resource levels could lead to more accurate predictions of male flower production.

AB - Airborne pollen of Cryptomeria japonica causes severe pollinosis, and the number of people suffering from pollinosis has increased rapidly during recent decades. Male flower production in C. japonica shows annual variability; thus, predicting male flower production for the following spring could be a countermeasure against pollinosis. We analyzed factors that explain fluctuations in male flower production of C. japonica according to parameters reflecting internal resource dynamics based on field observations. In addition, we carried out experiments to regulate available resource levels using artificial shading to test the effect of internal resource levels on the number of male flowers produced. We found that temperature and precipitation in the previous summer and a relative increase in male flower production in the previous year were negatively related, whereas sunshine duration in the previous summer and diameter at breast height were positively related to the current year increase in male flower production. The number of male flowers was significantly reduced by the shading treatment and was positively correlated with the amount of total non-structural carbohydrates in the root. These results suggest that understanding the parameters controlling internal resource levels could lead to more accurate predictions of male flower production.

KW - Artificial shading

KW - Male flower production

KW - Mass flowering

KW - Resource dynamics

KW - TNC

UR - http://www.scopus.com/inward/record.url?scp=84861112391&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84861112391&partnerID=8YFLogxK

U2 - 10.1007/s10310-009-0148-2

DO - 10.1007/s10310-009-0148-2

M3 - Article

AN - SCOPUS:84861112391

VL - 14

SP - 358

EP - 364

JO - Journal of Forest Research

JF - Journal of Forest Research

SN - 1341-6979

IS - 6

ER -