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DOI: | 10.1111/j.1365-3180.1972.tb01209.x |
Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3180.1972.tb01209.x/pdf Last checked: 07/23/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Horowitz, Menashe |
Author Affiliation: | Division of Weed Research, Agricultural Research Organization, Newe Ya'ar Experiment Station, Haifa, Israel |
Title: | Development of Cynodon dactylon (L.) Pers |
Source: | Weed Research. Vol. 12, No. 3, September 1972, p. 207-220. |
Publishing Information: | Oxford, United Kingdom: Blackwell Scientific Publications |
# of Pages: | 14 |
Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3180.1972.tb01209.x/abstract Last checked: 07/23/2015 Notes: Abstract only |
Keywords: | TIC Keywords: Growth rate; Temperatures; Rhizomes; Chemical composition; Carbohydrates; Roots; Cynodon dactylon; Regeneration; Reproduction; Flowering; Climatic factors
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Geographic Terms: | Israel |
Abstract/Contents: | "Early development of Cynodon dactylon (L.) Pers, was studied on one-node rhizome fragments planted at successive dates over a year. Aerial growth followed the changes in external temperature; in the cool season tops grew very slowly but remained alive. New rhizomes were formed only at temperatures exceeding 15-20°C. Flowering occurred in the warm season from May onwards. No relationship was found between flowering and rhizome formation. The age of plants forming new rhizomes decreased from 5 months for the January planting to less than 2 months for the May-September plantings. Rhizome bud germination was maximal between 23 and 35°C, slow below 20°C and inhibited at 10°C. The weight ratio of tops to subterranean parts of established plants was near 1 in winter, declined in March-April and remained at 0·5-0·6 from May onwards. An established sward of C. dactylon was sampled from September to November of the following year. Dry weight was lowest from January to mid-April, rose in spring and decreased in late summer. Almost no rhizomes were found deeper than 45 cm. Underground parts from the 0-15, 15-30 and 30-45 cm horizons constituted 62, 26 and 12% of the total weight, respectively; rhizomes formed more than 90% of the total underground dry weight. In the warm season the dry weight of the subterranean organs amounted to 2, 0·7 and 0·4 kg/m3 of soil in the three horizons, respectively. Percent dry matter in tops and subterranean parts was about 35-45% in the winter and 50-65% in the warm season. Up to 2% reducing sugars was found in various parts of the plants. The water-soluble sugar content of rhizomes was high in November-December, decreased in late winter, rose again in spring, and decreased in late summer. Percent germination of rhizome buds fluctuated greatly during the year, but complete dormancy was never recorded. Newly-formed rhizomes showed a high germinative capacity. Similar germination percentages were found on fragments with one node and those with several nodes." |
Language: | English |
References: | 20 |
Note: | Summary also appears in French and German Summary appears as abstract Figures Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Horowitz, M. 1972. Development of Cynodon dactylon (L.) Pers. Weed Res. 12(3):p. 207-220. |
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| DOI: 10.1111/j.1365-3180.1972.tb01209.x |
| Web URL(s): http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3180.1972.tb01209.x/pdf Last checked: 07/23/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2221093 |
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