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Application of lily leaf leaching liquor in control of parasitic weeds

A kind of extraction liquid and parasitic technology, applied in the field of lily leaf water extraction liquid, achieves the effect of broad application prospect, significant social benefit and economic benefit

Active Publication Date: 2015-11-18
INST OF BOTANY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has not been reported whether the lily plant with such rich active ingredients has the ability to control Lidang weeds, and there is no product that uses lily extract as a plant source to induce "suicidal germination" of Lidang seeds.

Method used

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  • Application of lily leaf leaching liquor in control of parasitic weeds
  • Application of lily leaf leaching liquor in control of parasitic weeds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Test method: First, in a petri dish, add 30 μl of water extracts of four different concentrations of the leaves of the above three lily varieties to a circular glass fiber filter with a diameter of 5 mm and the seeds of the melon seeds, respectively, and seal the petri dish. The membrane was sealed, and then placed in a constant temperature dark incubator at 25°C for cultivation. At the same time, 1 μg / ml of GR24 and distilled water were used as positive and negative controls. After one week, observe and count the germination rate of the Liedang seeds under a microscope, and the seed germination is based on the breakthrough of the seed coat by the suction root.

[0028] Test results: if figure 1 As shown, the germination rate of 1 μg / ml GR24 treatment of gualiedang seeds is above 80%, while the germination rate of gualiedang seeds treated with distilled water is 0, indicating that gualiedang seeds must be germinated under the effect of germination stimulating substance...

Embodiment 2

[0031] Test method: if figure 2 As shown, weigh the lily leaf powder to be tested and store it sealed for more than one year, and re-determine the germination experiment of Gualedang seeds. The specific detection method is the same as above.

[0032] Test results: Compared with the fresh leaf material of lily leaf material sealed and stored for more than one year, at the same dilution concentration, the former can stimulate the germination rate of gualiedang seeds by about 20%-30% lower than the latter, that is, sealed for one year The above ability to stimulate the germination of melons will be lost by 20%-30%. Therefore, using lily leaf powder as a unilateral preparation can maintain the ability to control the parasitic weed Gua Liedang relatively stably within a certain period of time.

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Abstract

The invention discloses a new use of lily leaf powder or a lily leaf leaching liquor in control of parasitic weeds. Lily leaves are used in control of melon Orobanche coerulescens parasitic weeds as a novel efficient plant source. Experiments prove that four concentrations (10mg / ml, 1mg / ml, 0.1mg / ml and 0.01mg / ml) of water leaching liquors of the lily leaves have strong germination stimulation effects on parasitic weed melon Orobanche coerulescens seeds, wherein when the diluted concentration is 0.1mg / ml, the melon Orobanche coerulescens seed germination stimulation rate of the water leaching liquor is very close to the germination stimulation rate of an artificially synthesized analog GR24. A result of determination of a lily leaf material stored in a sealed manner for above 0.5 year shows that the germination stimulation ability only decreases by 20-30%, so the lily leaves can be singly used to prepare parasitic melon Orobanche coerulescens weed control preparations, or can be combined with other medicines to form high efficiency compound preparations.

Description

technical field [0001] The invention relates to a botanical herbicide, in particular to a new application of lily leaf water extract in preventing and treating parasitic weeds. Background technique [0002] Melon is a parasitic weed, which is widely distributed all over the world and mainly parasitizes on the roots of economic crops such as melons, tomatoes, tobacco, sunflowers, gourds, carrots, etc., resulting in a large reduction in local crop yields, and affecting agricultural production and economic growth. Serious repercussions came. In addition, due to the large stock of Liedang seeds in the soil and the long survival time, it is difficult to control them only by means of machinery, labor, pesticide spraying, and breeding of herb-resistant varieties, which not only consumes a lot of manpower and material resources, but also damages the environment. eradication effect. [0003] Current studies have found that many parasitic or non-parasitic plants can secrete secondar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/42A01P13/00
Inventor 石雷柴敏朱小佩崔洪霞李杨李慧
Owner INST OF BOTANY CHINESE ACAD OF SCI
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