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A method of inducing pure female industrial hemp

A technology of industrial hemp and females, applied in botany equipment and methods, applications, plant genetic improvement, etc., can solve the problems of heavy workload, difficult to remove male plants, etc., achieve simple induction operation, and simplify hybrid seed production process Effect

Active Publication Date: 2017-01-25
云南省农业科学院经济作物研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the prior art industrial hemp hybrids have a heavy workload and it is difficult to completely remove the male plants, and aims to provide a method of inducing the sex conversion of industrial hemp female plants through chemical inducers, so as to obtain pure female plants. Industrial Hemp Methods

Method used

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  • A method of inducing pure female industrial hemp
  • A method of inducing pure female industrial hemp
  • A method of inducing pure female industrial hemp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] STS uses the configuration of the liquid. Take AgNO 3 Add 0.679g into 1L deionized water to make 4mmol / L AgNO 3 mother liquor. Anhydrous Na 2 S 2 o 3 2.528g or Na 2 S 2 o 3 ·5H 2 O3.968g was added to 1L deionized water to make 16mmol / L Na 2 S 2 o 3 mother liquor. Then AgNO 3 Slowly pour the mother liquor into an equal amount of Na 2 S 2 o 3 In the mother liquor, it is mixed according to the volume ratio of 1:1, and stirred at the same time to prepare a 2mmol / LSTS solution, add 0.01% Tween-80 as a surfactant, and store it in a brown glass bottle or a black plastic barrel for later use.

[0019] Population induction treatment of dioecious industrial hemp. Pond sowing of industrial hemp, such as figure 1 As shown, when most male plants differentiated into flower buds, use the STS solution to spray the top tips of the main stems and side branches of all industrial hemp plants. The standard is that the spraying is wet but there is no liquid dripping, and th...

Embodiment 2

[0023] STS uses the configuration of the liquid. Configure AgNO with a concentration of 3mmol / L 3 Mother liquor and 12.0mmol / L Na 2 S 2 o 3 mother liquor. After the two are mixed in equal volumes, 1.5 mmol / L of STS is obtained, and the configuration and storage methods are the same as in Example 1. The induction treatment process of industrial hemp is the same as in Example 1.

[0024] Implementation effect: Under the induction of 1.5mmol / L STS, about 81% of the female plants become monoecious, and the male flowers account for a little majority, and the number of male flowers accounts for 60% to 70%.

Embodiment 3

[0026] STS uses the configuration of the liquid. Configure AgNO with a concentration of 2mmol / L 3 Mother liquor and 8.0mmol / L Na 2 S 2 o 3 mother liquor. After the two are mixed in equal volumes, 1.0 mmol / L STS can be obtained, and the configuration and storage methods are the same as in Example 1. The induction treatment process of industrial hemp is the same as in Example 1.

[0027] Implementation effect: under the induction of 1.0mmol / L STS, about 75% of the female plants become monoecious, and the number of female flowers is slightly more, and the number of male flowers is 40% to 50%.

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Abstract

The invention relates to a method for inducing industrial pure female marihuana. Pins of a main stem and side branches of a female plant are sprayed twice with a silver thiosulfate (STS) solution by adopting a method so as to induce the female plant to generate male flower buds, the female plant is converted into monoecism, and set seeds after open pollination are industrial pure female marihuana seeds. The concentration of the STS solution is 0.2-2mmol / L and the solution is prepared by mixing AgNO3 and Na2S2O3 mother liquor according to the molar concentration of Ag<+> to S2O3<2-> of 1:4. Based on the situation that the industrial marihuana in China is dioecious, the chemical induction is carried out on the industrial marihuana in a special growing period to obtain an industrial pure female marihuana group. The method is easy to operate and low in cost, and has a relatively good application prospect in the aspects such as simplification of a hybrid seed production process of the industrial marihuana, development of selfing purification of the industrial marihuana, and the like.

Description

technical field [0001] The invention belongs to the technical field of agricultural planting, and in particular relates to a method for inducing pure female industrial hemp. Background technique [0002] Marijuana (Cannabissativa L.), aliased as hemp, hemp, hemp, etc., is called hemp, hemp, scorpion, and scorpion in ancient China. It is an annual herb of the genus Cannabis in the family Cannabinaceae (Cannabinaceae). It is dioecious and cultivated. It has a long history and is widely cultivated (species) or wild (species) all over the world, and is now mainly distributed in Asia and Europe. Hemp is a treasure all over the body, with huge economic value, involving many aspects such as textiles, papermaking, food, building materials and pharmaceuticals. However, because the marijuana plant contains a hallucinogenic and addictive active ingredient - tetrahydrocannabinol (tetrahydrocannabinol, THC), it is listed as a drug original plant in the United Nations Convention on Narco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/06
Inventor 陈璇杨明郭鸿彦郭孟璧许艳萍张庆滢郭蓉陈裕
Owner 云南省农业科学院经济作物研究所
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