Method for breeding industrial hemp in greenhouse

A technology of industrial hemp and greenhouses, applied in botany equipment and methods, applications, plant genetic improvement, etc., can solve the problems of paper bags that are easy to break, time-consuming, troublesome, and weather-influenced, and achieve increased land space utilization and isolation effects Good, the effect of reducing work intensity

Inactive Publication Date: 2017-07-18
DAQING BRANCH OF HEILONGJIANG ACAD OF SCI
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Problems solved by technology

This method is time-consuming and troublesome to implement, and the cost is relatively high, and it is not easy to configure more hybrid combinations. Adopting this method will cause slow breeding progress; Plant adjacent to each other. When it is about to bloom, put the female and male inflorescences in a paper bag, and shake the plants to pollinate them when blooming
This method is simple and easy to implement, but the paper bag has poor air permeability and water permeability, and the temperature inside the bag is high, which may easily cause poor pollen ripening, resulting in fewer hybrid fruits, uneven seed quality,

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  • Method for breeding industrial hemp in greenhouse
  • Method for breeding industrial hemp in greenhouse

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specific Embodiment approach 1

[0025] A method for breeding industrial hemp in a greenhouse, comprising the steps of:

[0026] Step 1. Soil loosening, disinfection and fertilization before sowing: Use a soil subsoiler to loosen the soil in the greenhouse. The depth of loosening reaches 25cm. Disinfect while loosening the soil. Hymexazol with 99% wettability is used for soil disinfection. Sprinkle powder 2.5kg / mu, and fertilize the soil after disinfection;

[0027] Step 2, soil ridging: Ridging according to the breeding materials, each hybrid combination has 2 ridges, the ridge width is 0.65m, and the ridge length is 2m;

[0028] Step 3, sowing industrial hemp: before sowing, insert signs on the side of the road according to the names or codes of the male parent and the female parent, perform artificial drilling in accordance with the principle that the male parent and the female parent are adjacent, and suppress after sowing;

[0029] Step 4. Field management of seedlings: The temperature control in the gr...

specific Embodiment approach 2

[0054] A method for breeding industrial hemp in a greenhouse, comprising the steps of:

[0055] Step 1. Soil loosening, disinfection and fertilization before sowing: In the greenhouse, use a soil subsoiler to loosen the soil to a depth of 15cm. Disinfect while loosening the soil. Hymexazol with 99% wettability is used for soil disinfection. Sprinkle powder 2.5kg / mu, and fertilize the soil after disinfection;

[0056] Step 2, soil ridging: Ridging according to the breeding materials, each hybrid combination has 2 ridges, the ridge width is 0.65m, and the ridge length is 2m;

[0057] Step 3, sowing industrial hemp: before sowing, insert signs on the side of the road according to the names or codes of the male parent and the female parent, perform artificial drilling in accordance with the principle that the male parent and the female parent are adjacent, and suppress after sowing;

[0058] Step 4. Field management of seedlings: The temperature control in the greenhouse is to ro...

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Abstract

The invention discloses a method for breeding industrial hemp in a greenhouse and belongs to the field of crop planting. Due to the breeding operation needs of hemp, increasing-generation reproduction is performed in the greenhouse, and crossbreeding is performed. Preparation of greenhouse breeding is performed after hemp seed harvesting for seeding in autumn. The invention aims to provide a method for breeding the industrial hemp in the greenhouse. The method disclosed by the invention comprises the steps of soil loosening before seeding, disinfecting and fertilizing, soil ridging, seeding of industrial hemp, performing field management on seedlings, performing management in a growth period of the industrial hemp, pollinating the industrial hemp and harvesting the industrial hemp seeds. According to the method disclosed by the invention, the defects in an isolation method in the prior art are overcome, the land space utilization ratio of greenhouse breeding is increased, different hybridized combinations are completed in the same place, the isolation effect is excellent, the isolated heterogonous plant rate is controlled to be 1-5%, the heterogonous plant hybrid rate is reduced by 10-14% due to mixing of varieties, and the labor intensity of scientific research personnel is reduced.

Description

technical field [0001] The invention belongs to the field of crop planting; in particular, it relates to a method for breeding industrial hemp in a greenhouse. Background technique [0002] There are currently three methods of isolation and pollination for industrial hemp hybrid breeding. The first method is the spatial isolation pollination method. When configuring hybrid combinations, the two parents are planted next to each other, but the distance between different combinations is more than 2km. When the male plant in the female parent Pull out when budding; leave the target male plant in the male planting area, pull out the diseased and weak plants, and pollinate freely when flowering. This method is time-consuming and troublesome to implement, and the cost is relatively high, and it is not easy to configure more hybrid combinations. Adopting this method will cause slow breeding progress; Plant adjacent to each other, and when it is about to bloom, put the female and ma...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01G1/00
CPCA01H1/02
Inventor 韩喜财潘冬梅韩成伟魏国江姜颖赵越孙宇峰赫大新曹焜
Owner DAQING BRANCH OF HEILONGJIANG ACAD OF SCI
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