Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/35477
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Type: Journal article
Title: Factors affecting turnipweed (Rapistrum rugosum) seed germination in southern Australia
Author: Chauhan, B.
Gill, G.
Preston, C.
Citation: Weed Science, 2006; 54(6):1032-1036
Publisher: Weed Sci Soc Amer
Issue Date: 2006
ISSN: 0043-1745
1550-2759
Statement of
Responsibility: 
Bhagirath S. Chauhan, Gurjeet Gill, and Christopher Preston
Abstract: Experiments were conducted on the seed of turnipweed collected from southern Australia. Seed germinated over a range of temperatures (25/15, 20/12, and 15/9 C) under both light/dark and dark conditions. Regardless of the light condition, germination of naked seed (63 to 88%) was greater than the seed in intact silique (0 to 13%). Seed germination was relatively unaffected (greater than 60%) at a low level of salinity (80 mM NaCl), and some germination occurred even at 160 mM NaCl (11%). Seed germination decreased as osmotic potential decreased from 0 to −1.0 MPa; however, some germination occurred even at an osmotic potential of −1.0 MPa (22%). Seed germination was greater than 76% over a pH range of 4 to 10. Seedling emergence of turnipweed was greater (60%) for seed buried at 1 cm than on the soil surface (23%). No seedlings emerged from seed buried at 5 cm. Information gained in this study will be important in developing a better understanding of the requirements for turnipweed germination and emergence.
Keywords: Osmotic stress
salt stress
pH
seedling emergence
seed depth
seed type
DOI: 10.1614/WS-06-060R1.1
Published version: http://dx.doi.org/10.1614/ws-06-060r1.1
Appears in Collections:Agriculture, Food and Wine publications
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