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|Title:||Influence of environmental factors on seed germination and seedling emergence of Oriental mustard (Sisymbrium orientale)|
|Citation:||Weed Science, 2006; 54(6):1025-1031|
|Publisher:||Weed Sci Soc Amer|
|Bhagirath S. Chauhan, Gurjeet Gill, and Christopher Preston|
|Abstract:||The effects of environmental factors on seed germination and seedling emergence of Oriental mustard were studied in laboratory and field experiments. Seed germination was stimulated by light; however, some germination occurred in the dark. In light/dark, potassium nitrate at 0.02 M stimulated germination of 1-mo-old seed to a maximum level of 45% as compared with the control (18%). Oriental mustard germination was inhibited by high levels of salt and osmotic stress. Seed germination was greater than 50% over a pH range of 4 to 10. Seedling emergence of 4- to 5-mo-old seeds was highest when present on the soil surface (70%) but declined with depth, and no seedlings emerged from a soil depth of 10 mm. In the field, seedling emergence was greater under no-till than minimum tillage systems.|
|Keywords:||Germination; light; tillage; weed seed|
|Appears in Collections:||Agriculture, Food and Wine publications|
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