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Regulating and controlling method for sex ratio of jatopha curcas flower with chemical reagent

A chemical reagent and the technology of Jatropha curcas are applied in the direction of botany equipment and methods, horticultural methods, chemicals for biological control, etc. It can solve the problems that the application effect of exogenous hormones needs to be further understood, and achieve low cost and method Simple and easy to implement, promote the effect of flowering and fruit setting

Inactive Publication Date: 2008-10-29
RES INST OF TROPICAL ECO AGRI SCI YUNAN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the existing literature search, no plant growth regulators have been reported on the differentiation of male and female flowers in Jatropha curcas, and the application effect of different exogenous hormones needs further understanding

Method used

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Examples

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Effect test

Embodiment

[0028] This embodiment sets the dosage of 3 different concentrations of 40% ethephon water agent and 3 different concentrations of gibberellin GA 3 , and sprayed with clear water as a control.

[0029] 1. Selection of chemical reagents

[0030] The chemical reagents are 40% ethephon water agent and gibberellin GA 3 ; Ethephon (2-chloroethylphosphonic acid) molecular formula is C 2 h 6 ClO 3 P.

[0031] 2. The chemical reagents are prepared according to the following conventional methods:

[0032] ① Preparation of ethephon water agent

[0033] Weigh 500 mg, 1000 mg, and 2000 mg of 40% ethephon aqueous solution, and prepare 500 mg / L, 1000 mg / L, and 2000 mg / L ethephon solutions with water.

[0034] ② Preparation of gibberellin aqueous solution

[0035] Weigh gibberellin GA 3 75mg, 90mg, 100mg, mixed with water to make 75mg / L, 90mg / L, 100mg / L.

[0036] All the reagents mentioned above are original medicines from the factory, and they are ready-to-use and ready-to-use.

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PUM

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Abstract

The invention discloses a regulating method for controlling the sex ratio of the floral organs of jatropha curcas by chemical reagents, pertaining to the technical field of plant growth regulators. The method includes that (1) 40 percent ethephon water solution and gibberellin (GA3) are selected as the chemical agents; (2) the 40 percent ethephon water solution is prepared into the solution with a concentration of 500mg / L to 2000mg / L and the gibberellin is prepared into the solution with the concentration 75mg / L to 100mg / L; (3) the surviving plant which is over two years old and has the capacity of flowering and fruiting is sprayed with the reagent; (4) the whole plant of the jatropha curcas is sprayed with the ethephon water solution just before the flowering prior period; (5) management and caring are carried out after spraying; (6) the gibberellin is sprayed. The method solves the problem of the ratio of the male jatropha curcas flower and the female jatropha curcas flower and can increase the ratio of the male jatropha curcas flower and the female jatropha curcas flower by 10percent to 20percent and effectively promote the flowering and the fruiting of the jatropha curcas and the yield of an individual plant.

Description

technical field [0001] The invention relates to the technical field of plant growth regulators, in particular to a method for regulating the sex ratio of flowers of Jatropha curcas by chemical reagents. Background technique [0002] Jatropha curcas is an excellent tree species that is resistant to drought, barrenness, wind and sand, retains water and soil, and improves the ecological environment. The oil extracted from the seeds of Jatropha curcas can be further processed into biodiesel. The leaves, stems, and fruits can also be used as raw materials for antibacterial and antiviral biopharmaceuticals and biopesticides. The detoxified oil residue can also be used to make protein powder for feed and compound fertilizers, etc. . Jatropha curcas is mainly distributed in my country's Yunnan, Sichuan, Guangxi, Guangdong, Hainan and other areas with complex geological structures, serious soil erosion, serious mountain disasters, and fragile ecological environments. Therefore, mak...

Claims

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Application Information

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IPC IPC(8): A01G7/06A01N57/20A01N43/12A01P21/00
Inventor 瞿文林张明忠何璐杨顺林段曰汤史亮涛金杰袁理春范源洪沙毓沧李建增张德马开华龙会英冯光恒韩学琴邓红山
Owner RES INST OF TROPICAL ECO AGRI SCI YUNAN ACAD OF AGRI SCI
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