| Abstrakt: |
The effects of soil invertebrates (earthworms) and AM fungus fertilizers were observed alone and together on the growth of Punica granatum and on the reproduction of herbivores (Aphis punicae). Pomegranate plants were grown individually in pots containing sandy, silty, and clay soil. Plants were grown in soil containing: a) no added fauna, b) earthworms, c) AM fungus fertilizers, and d) AM fungus fertilizers and earthworms. As a result of the study, the highest number of shoots were observed in worm + fertilizer applied treatments and the lowest in the only worm used treatments. There was a significant difference between control (Pk) and worm + fertilizer (Psg) groups in shoot number (P<0.05). The greatest height growth was observed in worm applied treatment while the lowest was observed in control. Control, worm and worm + fertilizer groups differed significantly in terms of salinity content. Plant height negatively, but shoot numbers positively correlated with soil phosphorous content (P<0.05). There was a positive correlation between shoot numbers and K2O contents of treatment group soils. Aphid performance was strongly influenced by the presence of worm + fertilizer (Psg). In the presence of only worms (Ps), the numbers of adult and juvenile aphids were significantly increased at the first and second generations. Aphid death rate is the highest in worm + fertilizer (Psg) and lowest in the control treatment (Pk) for the first generation. These results suggest that different soil types and treatments affect plant growth parameters positively but do not sufficiently affect aphid population changes. [ABSTRACT FROM AUTHOR] |
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