科研之友
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摘要
The aim of this study was to assess the efficiency of aqueous extracts of medicinal plants Verbena officinalis (L.), Erythrina mulungu (Mart. ex Benth.), Quassia amara (L.), Bidens pilosa (L.) and Plantago lanceolata (L.), for Meloidogyne incognita control in the greenhouse. Therefore tomato seedlings about 10 cm high, was transplanted in plastic pot with 1 liter capacity containing a mixture of soil: sand 2:1 (v / v) on each plant was inoculated with an aqueous suspension containing 3,000 of nematode eggs. After inoculation plants were applied to the soil separately 20ml of aqueous extracts of the respective plant species was study at a concentration of 100 g L-1. In the control treatment, was added to soil water only or chemical nematicide. The experiment was a completely randomized design with seven replicates per treatment, each represented by a pot containing tomato seedlings and repeated once. Variables evaluated were shoot height, fresh weight of shoot and root, number of galls and number of eggs. Of all botanical extracts evaluated, only the aqueous extracts V. officinalis and E. mulungu, controlled the nematode galls when compared to the control treatment (water only) and control exhibited the same to that obtained with the use of chemical nematicide. No aqueous extract affected the development of tomato plants. Further studies should be conducted under field conditions to test the efficiency of these extracts in field conditions.
- 出版日期2014-6
