| Autor: |
STOLZY, L. H., LABANAUSKAS, C. K., KLOTZ, L. J., DEWOLFE, T. A. |
| Zdroj: |
Soil Science; February 1975, Vol. 119 Issue: 2 p136-142, 7p |
| Abstrakt: |
Scions of lemon and orange were grafted on sweet orange rootstocks, Citrus sinensis Osbeck “Bessie” grown in fumigated sandy loam. After the plants were well established, half of their number were inoculated with Phytophthora parasitica Dastur and P. citrophthora (Sm. and Sm.) Leonian. Oxygen supply to the root soil environment was controlled by having sealed containers in which oxygen concentrations over the soil surface could be reduced from atmospheric oxygen (20.93 percent) by mixing nitrogen with air. Total dry weights of leaves, stems, and roots were significantly reduced by the presence of Phytophthora spp. while only dry weight of roots was significantly reduced due to low oxygen supply. Even though the dry weight of the lemon tops was greater than that of orange the vigor of the top had no effect on root growth or root rot due to Phytophthora spp. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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