| Autor: |
Kazinczi, Gabriella, Varga, Péter, Takács, András, Torma, Mária, Horváth, József |
| Zdroj: |
Cereal Research Communications; June 2007, Vol. 35 Issue: 2 p601-604, 4p |
| Abstrakt: |
Higher biomass and nutrient content of tomato suggest, that its development is faster at the beginning of the vegetation period than that of C. arvensisseedlings. Competitive ability of C. arvensisis due largely to its extensive root system. Vegetative underground parts have a large amount of food reserves, as compared to that of seeds, therefore shoots sprouted from adventitious buds have more considerable competitive ability, than plants developed from seeds (Holm et al. 1977). Nevertheless C. arvensisseedlings succesfully compete with tomato plants, as it can be seen from biomass production and nutrient content data. Competition for the nitrogen is especially strong similar to the results of the other authors (Berzsenyi — Lap 2005, Kovacevic et al. 2006, Németh 2006). Beside interspecific competiton between tomato and C. arvensis, intraspecific one between C. arvensisseedlings was also strong. Nevertheless more detailed and exact conclusions could be obtained from the results of field competiton studies, where the development both of the weeds and crops are observed during the whole vegetation period and yield data are also available (Varga et al. 2006). |
| Databáze: |
Supplemental Index |
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