The role of the seed coat in phytochrome-controlled seed germination in Lactuca sativa L. cv. Grand Rapids

被引：0
|
作者：
Takaki, M [1 ]
Gama, LHP [1 ]
机构：
[1] UNESP, Dept Bot, BR-13506900 Rio Claro, SP, Brazil
来源：
SEED SCIENCE AND TECHNOLOGY | 1998年 / 26卷 / 02期
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D O I：
暂无
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The effect of scarification with sodium hypochloride on light sensitivity in seeds of Lactuca sativa L. cv. Grand Rapids is presented in the paper. Light-requiring lettuce seeds germinated in both dark and continuous light after scarification and 36 degrees C pre-incubation restored light sensitivity at 25 degrees C. Curves of dose-response indicated that chemical scarification induced a change in the control of seed germination from Low Fluence Response to the Very Low Fluence Response. Pre-incubation at 36 degrees C return the control to the Low Fluence Response of phytochrome action.
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页码：355 / 362
页数：8
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