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| DOI: | 10.11275/turfgrass1972.31.115 |
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| Web URL(s): | https://www.jstage.jst.go.jp/article/turfgrass1972/31/2/31_2_115/_pdf
Last checked: 08/13/2013
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Hamuro, Shuuichi;
Yamakawa, Shigeya;
Ito, Misako |
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| Title: | Emergence characteristics of Conyza canadensis (L.) Cronquist var. canadensis and C. sumatrensis (Retz.) Walker in turf with reference to seed dispersal time |
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| Source: | Journal of Japanese Society of Turfgrass Science. Vol. 31, No. 2, 2003, p. 115-120. |
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| Publishing Information: | Tokyo, Japan: Japanese Society of Turfgrass Science |
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| # of Pages: | 6 |
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| Related Web URL: | https://www.jstage.jst.go.jp/article/turfgrass1972/31/2/31_2_115/_article
Last checked: 08/13/2013
Notes: English summary only |
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| Abstract/Contents: | "Conyza spp. are troublesome turf weeds particularly in cool seasons because of their rosettes. Characteristics of emergence and seedling establishment of C. canadensis and C. sumatrensis in turf were determined in 1999 and 2000 at the Uji Country Club in Kyoto, with reference to seed dispersal time and turf conditions. Fully mature seeds of the two species were collected twice from populations in a waste area at the site, in mid-August and in mid-September, and sown within 22 days thereafter to the Zoysia turf (cut at 12mm) on a research green and adjacent bare ground. Germination rate of the seeds were as high as 74 to 98%. Little difference was found between C. canadensis and C. sumatrensis for all the characteristics measured. Emergence of summer-sown seeds in turf started later and final emergence rates were lower than on bare ground in both two years. These tendency were more prominent in 1999 because of the better turfgrass growth and drier thatch conditions due to summer rainfall pattern. Emergence rates of autumn-sown seeds in the turf, which were higher than those of summer-sown seeds as a whole, did not significantly differ from those sown on bare ground. Thatch removal in turf completely eliminated seedling death in both species that occurred in untreated turf, suggesting that the time of thatch removal in important for turfgrass weed management. Overwinter plants in turf mostly died in following summer before reaching to the reproductive stage." |
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| Language: | Japanese |
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| References: | 19 |
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| Note: | English summary as abstract
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hamuro, S., S. Yamakawa, and M. Ito. 2003. Emergence characteristics of Conyza canadensis (L.) Cronquist var. canadensis and C. sumatrensis (Retz.) Walker in turf with reference to seed dispersal time. (In Japanese) Journal of Japanese Society of Turfgrass Science. 31(2):p. 115-120. |
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| DOI: 10.11275/turfgrass1972.31.115 |
| Web URL(s):
https://www.jstage.jst.go.jp/article/turfgrass1972/31/2/31_2_115/_pdf
Last checked: 08/13/2013
Requires: PDF Reader |
| 
MSU catalog number: b4004869 |
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