Flowering and fruiting characteristics on sprouting of <i>Quercus phillyraeoides</i> and <i>Q. glauca</i>

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  • 萌芽更新したウバメガシとアラカシの開花結実特性
  • ホウガ コウシン シタ ウバメガシ ト アラカシ ノ カイカ ケツジツ トクセイ

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Abstract

<p>In this study, we examined the flowering and fruiting characteristics of Quercus phillyraeoides and Q. glauca at 3, 5, and 11 years after logging in binchō charcoal wood forests in Japan. We surveyed flowering in four stands in spring 2014, and fruiting in three stands in autumn 2015. The mean height and mean stem base diameter were greater in Q. glauca than in Q. phillyraeoides at all but one site. For Q. phillyraeoides, we observed flower set and fruiting in 3 and 4 years, respectively, and for Q. glauca, we observed fruiting in 4 years. The minimum heights of individual flowering trees was 0.55 m in Q. phillyraeoides. The minimum heights of individual fruiting trees were 0.96 and 2.17 m in Q. phillyraeoides and Q. glauca, respectively. The ratio of flowering and fruiting individuals was higher in Q. phillyraeoides than in Q. glauca at all sites where flowering and fruiting were observed. These results imply that Q. phillyraeoides and Q. glauca may exhibit reproductive precocity in starting seed production during the early growth stage, and flowering and fruiting start earlier in Q. phillyraeoides than in Q. glauca.</p>

Journal

  • Applied Forest Science

    Applied Forest Science 30 (1), 11-16, 2021-02-28

    The Society of Applied Forest Science

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