Application of beta-eudesmol in preparation of herbicides
A technology of eucalyptol and herbicides, which is applied in the field of the control effect of compounds on weeds, and can solve the problem that the inhibitory effect is in a blank stage
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Embodiment 1
[0044] Inhibitory effect of β-cineole on Amaranth and Poa annua in Petri dishes:
[0045] Prepare β-eucalyptol with distilled water to form β-eucalyptol aqueous solutions with concentrations of 0.25 mg / mL, 0.5 mg / mL, 1 mg / mL, 2 mg / mL and 5 mg / mL;
[0046] According to the preparation of aqueous solutions of β-eucalyptol at various concentrations, select petri dishes with a diameter of 9 cm, place filter paper in each petri dish, and add 60 amaranth or bluegrass seeds, and then add 5 ml of them at a concentration of 5 mg / mL , 2mg / mL, 1mg / mL, 0.5mg / mL and 0.25mg / mL β-eucalyptol solutions, each repeated treatment twice, and used as a blank control of distilled water; after sealing each culture dish with a parafilm , placed in a 25°C incubator for 7 days in the dark to measure the seedling height and root length of the seedlings; the commercial herbicide glyphosate was used as a positive control;
[0047] Data statistics method: first calculate the inhibition rate of the root len...
Embodiment 2
[0052] In the field, the poisonous effect of β-cineole on healthy Amaranth and bluegrass growing in the field:
[0053] Prepare β-eucalyptol with distilled water into an aqueous solution of β-eucalyptol with a concentration of 10 mg / mL, put the solution in a watering can and mark it;
[0054] When the wild Amaranth and Poa annua seedlings grow to 10cm, spray the prepared aqueous solution of β-cineole with a concentration of 10mg / mL. The plant condition of Amaranth and Poa annua in the field;
[0055] Results: Amaranth and bluegrass sprayed with a concentration of 10mg / mL β-cineole aqueous solution showed a withered state after 1 day, and died after 2 days. For the effect, see the attached Figure 7 and Figure 8 ;
[0056] in conclusion:
[0057] The use of the β-eucalyptol described in the present invention in the preparation of herbicides has obvious inhibitory and poisonous effects on weeds Amaranthus retroflexus and Poa annua, and the dosage is extremely low, which can...
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