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| Web URL(s): | http://www.bioone.org/bioone/?request=get-document&issn=0043-1745&volume=051&issue=01&page=0078
Last checked: 11/2005
Access conditions: Item is within a limited access website |
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| Publication Type:
| Refereed |
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| Author(s): | Liu, Ming-Chung;
Owen, Michael D. K. |
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| Author Affiliation: | Agronomy Department, Iowa State University, Ames, Iowa |
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| Title: | Effect of seed reserve utilization on woolly cupgrass (Eriochloa villosa) development |
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| Section: | Weed biology and ecology
Other records with the "Weed biology and ecology" Section
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| Source: | Weed Science. Vol. 51, No. 1, January/February 2003, p. 78-82. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Weeds; Seeds; Germination; Dry weight; Shoot growth; Light; Nicosulfuron; Seeding depth; Nutrients; Tillering rate
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| Abstract/Contents: | "Two experiments were conducted to examine woolly cupgrass seed reserve utilization and the effect of germination depth on seed reserve utilization, tiller number, and timing of tiller emergence. The first experiment included germination in light with water, in light with Hoagland's solution, and in darkness with water; the second included five planting depths of 1, 3, 5, 7 and 9 cm. Endosperm utilization and shoot and root growth over time were recorded. Endosperms lost weight rapidly until 6 d after germination (DAG), when weight loss slowed down. Endosperm weight loss ceased 8 or 10 DAG. Endosperm weigh loss was fastest for germination in light with Hoagland's solution. Deep planting significantly decreased emergence rate and increased the time to emergence. Differences in residual endosperms may have affected the early development of woolly cupgrass seedlings. Germination from a depth of 9 cm depleted the endosperm by the time of emergence. Deep planting also decreased shoot dry weight and tiller number 15 d after planting (DAP). Because the first tiller of woolly cupgrass usually appeared 10 to 12 DAP, and the endosperm had been depleted before that, there was no endosperm to support the new tillers." |
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| Language: | English |
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| References: | 21, 2 Notes |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Liu, M.-C., and M. D. K. Owen. 2003. Effect of seed reserve utilization on woolly cupgrass (Eriochloa villosa) development. Weed Sci. 51(1):p. 78-82. |
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| Web URL(s):
http://www.bioone.org/bioone/?request=get-document&issn=0043-1745&volume=051&issue=01&page=0078
Last checked: 11/2005
Access conditions: Item is within a limited access website |
| 
MSU catalog number: SB 610 .W38 |
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