Artemisia monosperma achene germination in sand: effects of sand depth, sand/water content, cyanobacterial sand crust and temperature
Artemisia monosperma achene germination in sand: effects of sand depth, sand/water content, cyanobacterial sand crust and temperature
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DOI：
10.1006/jare.1997.0329
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发表时间：
1998-01-01
影响因子：
2.7
通讯作者：
Gutterman, Y
中科院分区：
文献类型：
--
作者：
Huang, ZY;Gutterman, Y
单籽蒿是桑迪荒漠中的优势多年生灌木，其粘性瘦果在光照下萌发，但在黑暗中萌发不良。沙生瘦果埋得越深，发芽越低，发芽越慢。超过4厘米深的地方没有幼苗出现，但在去除上面3厘米或暴露在下面的光线下后，幼苗出现了。在自然条件下，幼苗从0.1至1.8厘米的深度出现。砂/水含量越高，发芽越早。瘦果成熟的日期也影响萌发。在蓝藻沙壳和该壳下0.5 cm至1 cm处，即使通气，也会抑制发芽。(C)出版社：Academic Press Limited。
The mucilaginous achenes of Artemisia monosperma, a dominant perennial shrub in sandy deserts, germinate in light but poorly in dark. The deeper the achenes in sand, the lower and slower their germination. No seedlings emerged from deeper than 4 cm, but seedlings emerged after removal of the upper 3 cm or when exposed to light from below. In natural conditions seedlings emerge from a depth of 0.1 to 1.8 cm.The higher the sand/water content, the earlier the germination. The date of achene maturation also affects germination. Germination is inhibited on cyanobacterial sand crust and at 0.5 cm to 1 cm below this crust, even if aerated. (C) 1998 Academic Press Limited.