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| Sensitivity of different vegetables to imazapic residue in soil |
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| DOI：10.16768/j.issn.1004-874X.2016.11.016 |
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| Abstract: |
| In order to study the effects of imazapic residue on growth of vegetables，experiments were conducted
by growing 13 kinds of vegetables succeeding to the field with initial imazapic dosage of 108 g/hm2. The results
showed that imazapic residue obviously affected cucurbitaceous vegetables（ cucumber，Zucchini，white melon） and
leaf vegetables（flowering Chinese cabbage，cabbage mustard，senvy，red spinach）. The inhibition rate of their
plant height，root length and upside fresh weight varied from 31% to 95%，which was significant. As for Solanaceous
vegetables（ eggplant，tomato，pepper and potato） and long bean，the inhibition effect varied for different vegetables
and different parts of the vegetables；the root length and plant height for sweet corn did not have significant difference
compared to control group. Moreover，4 kinds of vegetables were grown in lab with modeling imazapic residue dosage
from 0 to 96μg/kg. By comparing their ID50 and ID10 value for plant height and root length，we can conclude the order
of sensitivity to imazapic: cucumber > flowering Chinese cabbage > pepper > bean；ID50 and ID10 value also showed
that roots were more sensitive than stem. Therefore，it is not recommended to use imazapic if succeeding corps are
leaf vegetables and cucurbitaceous vegetables. |
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