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浸水对植物种子的发芽有不同的影响,有人将橡实浸在水中越冬,发现发芽率增高。作者利用(1)西班牙栎(Quercus falcata Michx.),(2)柳栎(Q.ph-cllos L.),(3)桂叶栎(Q.laurifolia Michx.),(4)琴叶栎(Q.lyrata Walt.)等四种南方橡实作水浸试验。第(1)种栎多分布在皮德芒特阶地和宾海平原地区中等干燥的高地处;第(2)和(3)种栎分布在不易受洪水淹没而排水不良的河滩地上;第(4)种栎则分布于经常在生长季节开始后就受河水淹没几周之久的河滩地和沼泽地上。前三种橡实在试验前皆经过浮
Watering on the germination of plant seeds have different effects, some people will oak immersed in the water overwintering, found that germination rate increased. The authors used (1) Quercus falcata Michx., (2) Q.ph-cllos L., (3) Q. laurifolia Michx., (4) Q.lyrata Walt.) And other four southern oak water immersion test. (1) Quercus variabilis distributes mostly in moderately dry highlands in the Piedmont terraces and Binhai plains; Quercus (2) and (3) are distributed on floodplains which are not easily flooded and are poorly drained; 4) Quercus species are found on floodplains and swamps, often flooded for several weeks after the beginning of the growing season. The first three kinds of acorns have been floated before the test