Estimation for the timing of the internal developmental processes of acorns from fruit size in Quercus serrata Thunb. ex Murray
Estimation for the timing of the internal developmental processes of acorns from fruit size in Quercus serrata Thunb. ex Murray
复制标题
根据锯缘栎果实大小估计橡子内部发育过程的时间。
DOI：
10.1007/s10310-003-0035-1
复制
发表时间：
2003
影响因子：
1.5
通讯作者：
A. Kanazashi
中科院分区：
文献类型：
--
作者：
T. Kanazashi;A. Kanazashi
研究了影响齿皮栎橡子早期败育因素的相对重要性。在显微镜下观察了橡子的内部发育过程，并探讨了以果实直径作为橡子内部发育指标的可行性。根据显微观察，橡子的发育过程可分为五个阶段：一个合子前阶段和四个合子后阶段（阶段I至V）。授粉后14周左右，好果直径呈指数增长，但在此过程中单株直径变异较小（CV = 1.6%）。果实直径可作为橡子个体水平发育阶段的一个良好指标，也可用于评价影响橡子早败的生态因子。
To evaluate the relative importance of the factors affecting the premature abortion of acorns inQuercus serrataThunb. ex Murray during the course of their development, inner developmental processes of acorns were observed by microscope, and applicability of the diameter of fruits (acorns with cupules) as an indicator of the inner developmental processes was discussed. Based on the observations using microscope, the developmental processes of acorns were classified into five stages; one prezygotic and four postzygotic stages (stages I to V). The diameter of sound fruits increased exponentially until 14 weeks after pollination, and the variance of diameter in each tree was fairly small (CV = ˜6%) during the process. Diameter of fruits can be used as a good indicator of developmental stages of acorns at individual level, and effective for the evaluation of the ecological factors affecting the premature abortion of acorns.