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Simple method for determining drift rate and drift distance of transgenic cotton

A drift distance and genetically modified technology, which is applied in the field of agricultural applications, can solve problems such as the method of drift rate of transgenic cotton that has not yet been found, and achieve good operability, improve the level of supervision, and intuitively judge the effect

Inactive Publication Date: 2012-10-24
INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A search of existing patents and other literature has not found information on a simple method for determining the drift rate of transgenic cotton

Method used

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  • Simple method for determining drift rate and drift distance of transgenic cotton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Such as figure 1 As shown, in a cotton field with an area of ​​100m×100m, the transgenic cotton to be tested was planted in a circle with a central diameter of 5m, and control cotton was planted around the circle. When cotton is harvested, 10 cotton plants are selected in concentric circles at the distances of 1m, 5m, 10m, 20m, 30m, 40m, and 50m from the cotton to be tested in the four directions of east, south, west, and north, respectively. Pick 3 bolls of cotton according to the top, middle and bottom respectively, and mark them.

[0016] The harvested samples are hung to dry and ginned separately to get the cotton seeds; in the second year when the temperature is suitable, sow the cotton seeds collected from different parts of each point as a small plot, and mark it well, so that intensive sowing can be carried out, and the cotton seeds can be planted according to the routine Methods The cotton fields were managed, and when the cotton bloomed, the number of cotton ...

Embodiment 2

[0019] Such as figure 1 As shown, in a cotton field with an area of ​​100m×100m, the transgenic cotton to be tested was planted in a circle with a central diameter of 5m, and control cotton was planted around the circle. When cotton is harvested, 10 cotton plants are selected in concentric circles at the distances of 1m, 5m, 10m, 20m, 30m, 40m, and 50m from the cotton to be tested in the four directions of east, south, west, and north, respectively. Pick 5 cotton bolls according to the top, middle and bottom of the cotton, and mark them.

[0020] The harvested samples are hung to dry and ginned separately to get the cotton seeds; in the second year when the temperature is suitable, sow the cotton seeds collected from different parts of each point as a small plot, and mark it well, so that intensive sowing can be carried out, and the cotton seeds can be planted according to the routine Methods The cotton fields were managed, and when the cotton bloomed, the number of cotton pl...

Embodiment 3

[0023] Such as figure 1 As shown, in a cotton field with an area of ​​100m×100m, the transgenic cotton to be tested was planted in a circle with a central diameter of 5m, and control cotton was planted around the circle. When cotton is harvested, 10 cotton plants are selected in concentric circles at the distances of 1m, 5m, 10m, 20m, 30m, 40m, and 50m from the cotton to be tested in the four directions of east, south, west, and north, respectively. For cotton, 10 cotton bolls are picked respectively according to the top, middle and bottom, and marked.

[0024] The harvested samples are hung to dry and ginned separately to get the cotton seeds; in the second year when the temperature is suitable, sow the cotton seeds collected from different parts of each point as a small plot, and mark it well, so that intensive sowing can be carried out, and the cotton seeds can be planted according to the routine Methods The cotton fields were managed, and when the cotton bloomed, the numb...

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Abstract

The invention relates to a simple method for determining drift rate and drift distance of transgenic cotton. The simple method for determining drift rate and drift distance of transgenic cotton includes selecting transgenic cotton and control cotton different from each other in flower color, planting the transgenic cotton in a round area, and planting the control cotton outside the round area; and during harvesting, picking cotton and independently pricking the cotton to obtain seeds in different directions by different distances, sowing the obtained seeds in different areas for the next time, observing flower color when the cotton flowers, counting the number of cotton plants in the flower color of flowers to be detected and the total number of the cotton plants so as to obtain the drift distance in different directions and the drift rate. The simple method is simple, reliable, economic and practical, results are visual, and false positive never occurs. Necessary techniques are provided for controlling environmental release of the transgenic cotton, the requirement for detecting and monitoring the transgenic cotton in China can be met, and transgenic organism supervision level of China is increased.

Description

technical field [0001] The invention relates to a simple method for determining the drift rate and drift distance of transgenic cotton, belonging to the technical field of agricultural applications. Background technique [0002] Since the world's first genetically modified crop came out in 1983, the planting area of ​​genetically modified plants in the world has continued to increase, reaching 148 million hectares in 2010, and the number of countries planting genetically modified crops has reached 29. The main genetically modified crops are soybeans, corn, cotton, rapeseed, etc. The exogenous genes involved are mainly herbicide tolerance genes and insect resistance genes. With the widespread planting of genetically modified plants, their potential ecological safety and food safety issues have increasingly attracted people's attention. People are generally worried whether the wide application of genetically modified crops will destroy the ecological balance of nature, and whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G7/00
Inventor 孙红炜路兴波李凡杨淑珂赵亚
Owner INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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