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Physical and physiological dormancy in black henbane (Hyoscyamus niger L.) seeds

한국식물학회지 2004년 47권 4호 p.391 ~ 395
Crak Cuneyt, KevseroGlu Kudret, Saglam Birsen,
소속 상세정보
 ( Crak Cuneyt ) - University of Ondokuz Mayis Faculty of Agriculture Department of Field Crops
 ( KevseroGlu Kudret ) - University of Ondokuz Mayis Faculty of Agriculture Department of Field Crops
 ( Saglam Birsen ) - University of Ondokuz Mayis Faculty of Agriculture Department of Field Crops

Abstract


Aim of this study was to investigate the nature of dormancy in black henbane (Hyoscyamus niger) seeds which have low germination rate under normal laboratory conditions. To do this, before placing the seeds in Petri dishes, they were soaked in 5,10 and 15 mg/L GA; 1,2 and 3% H2SO4, 15 mg/L GA + 1% H2SO4, 0.01 M KNO3 solutions, tap water, 40, 50 and 60°C hot water for 30 min. The study was performed under both continuous illumination and darkness in growth chambers to evaluate the effect of light on germination rate. The results showed that H2SO4 and GA treatments were the most important factors affecting seed germination and their germination enhancing effects were more evident in darkness. The results also suggested that black henbane seeds exhibit double dormancy involving a hard seed coat and a partially dormant embryo and have a partial dark requirement to germinate.

키워드

black henbane; dark requirement; double dormancy; GA; H2SO4

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