Maturation of Shumard and White Oak Acorns
Maturation of Shumard and White Oak Acorns
复制标题
舒马德和白橡子的成熟
DOI：
10.1093/forestscience/22.2.149
复制
发表时间：
1976
期刊：
影响因子：
1.4
通讯作者：
F. Bonner
中科院分区：
文献类型：
--
作者：
F. Bonner
在为期3年的观察生长和成熟的橡子从四个Shumard和四个白色橡树，干重都稳步上升，从7月到11月初。从每种树的橡子的化学分析表明，碳水化合物，主要的存储食物，积累迅速在8月下旬水分含量下降。10月下旬或11月上旬达到正常发芽所指示的生理成熟，此时碳水化合物平均在舒马德橡子中为25%，在白色橡树中为40%。橡子成熟度最实用的指标是颜色从绿色到棕色的变化。森林科学22：149-154。
During a 3-year observation of growth and maturation of acorns from four Shumard and four white oaks, dry weights of both increased steadily from July until early November. Chemical analyses of acorns from one tree of each species showed that carbohydrates, the principal storage food, accumulated rapidly during late August as moisture content decreased. Physiological maturity as indicated by normal germination was reached in late October or early November, when carbohydrates averaged 25 percent in Shumard acorns and 40 percent in white oak. The most practical indicator of acorn maturity is the change in color from green to brown. Forest Sci. 22:149-154.