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| Publication Type:
| Refereed |
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| Author(s): | Keeley, Paul E.;
Thullen, Robert J. |
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| Author Affiliation: | Res. Plant Physiol.and Plant Physiol., respectively, A.R.S., U.S.D.A., Shafter, CA |
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| Title: | Influence of Planting Date on Growth of Barnyardgrass (Echinochloa crus-galli) |
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| Source: | Weed Science. Vol. 37, No. 4, July 1989, p. 557-561. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| Keywords: | TIC Keywords: Flowers; Seeds; Seedling Emergence; Growth; Germination; Echinochloa crusgalli; Inflorescences
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| Abstract/Contents: | "Barnyardgrass seeded in field plots at monthly intervals from March through October at Shafter, CA, began to emerge in March when soil temperatures reached 17 C at a depth of 5 cm. For all plantings, most of the seeds germinated and produced seedlings within 2 weeks. Increasing day lengths favored vegetative growth, with April, May, and June plantings producing the tallest plants, the most dry matter, and the largest number of tillers. July and August plantings, the first to flower, began flowering and producing seeds within 5 to 6 weeks after planting, but the greatest number of seeds (15 000 to 25 000/plant) was produced by the larger plants of the April, May, and June plantings. September plantings produced few seeds/plant (37), when compared to March (5900), July (9800), and August (9700) plantings. The earliest that seed production would be expected from seedlings emerging in March and April would be early June, and seedlings emerging in September could produce seeds before killing frosts." |
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| Language: | English |
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| References: | 12 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Keeley, P. E., and R. J. Thullen. 1989. Influence of Planting Date on Growth of Barnyardgrass (Echinochloa crus-galli). Weed Sci. 37(4):p. 557-561. |
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MSU catalog number: SB 610 .W38 |
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