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Cotton hybrid seed preparing method

A technology for hybrid seed production and cotton varieties, applied in the agricultural field, can solve the problems of cumbersome emasculation process, high production cost, high labor intensity, etc., and achieve the effects of increasing the natural outcrossing rate, reducing the cost of seed production, and reducing labor intensity.

Pending Publication Date: 2019-02-19
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, propose a cotton hybrid seed production method, and solve the technical problems of cumbersome detasseling procedures, time-consuming, labor-intensive and high production costs in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Selection of cotton seeds: When harvesting the previous crop of cotton, Ekang 13 and Ejing 1 without fatal defects such as damage and rot were selected as the female parent group, DP410B and KC160 as the male parent group, and the female parent group and the male parent group were selected respectively. The group is mixed according to the ratio of 1.2:1, and Ekang 13 and Ejing 1 are mixed in equal amounts, and DP410B and KC160 are also mixed in equal amounts; at the same time, choose sesame seeds with plump seeds and no damage;

[0030] (2) Soil preparation: select a plot with deep soil layer, flat terrain, good drainage and irrigation conditions, and no cotton planted before, and deep plow the plot with base fertilizer 6 days before sowing in mid-to-late April. The plowing depth is 25cm, turn the soil of the plot evenly, pour appropriate amount of water to keep the soil moist, and cover with plastic film;

[0031] (3) Sowing method: After soaking the cotton seeds s...

Embodiment 2

[0034] (1) Selection of cotton seeds: When harvesting the previous crop of cotton, Ekang 13 and Ejing 1 without fatal defects such as damage and rot were selected as the female parent group, DP410B and KC160 as the male parent group, and the female parent group and the male parent group were selected respectively. The group is mixed according to the ratio of 1:1, and Ekang 13 and Ejing 1 are mixed in equal amounts, and DP410B and KC160 are also mixed in equal amounts; at the same time, choose buckwheat seeds with plump seeds and no damage;

[0035] (2) Soil preparation: Select a plot with deep soil, flat terrain, good drainage and irrigation conditions, and no cotton planted before, and deep plow the plot with base fertilizer 5 days before sowing in mid-to-late April. The plowing depth is 30cm, turn the soil evenly, pour some water to keep the soil moist, and cover with plastic film;

[0036] (3) Sowing method: After soaking the cotton seeds selected in step (1), sow in the mi...

Embodiment 3

[0039] (1) Selection of cotton seeds: When harvesting the previous crop of cotton, Ekang 13 and Ejing 1 without fatal defects such as damage and rot were selected as the female parent group, DP410B and KC160 as the male parent group, and the female parent group and the male parent group were selected respectively. This group is mixed according to the ratio of 1.05:1, and Ekang 13 and Ejing No. 1 are mixed in equal amounts, and DP410B and KC160 are also mixed in equal amounts; at the same time, choose sesame seeds with plump seeds and no damage;

[0040] (2) Soil preparation: Select a plot with deep soil, flat terrain, good drainage and irrigation conditions, and no cotton planted before, and deep plow the plot with base fertilizer 7 days before sowing in mid-to-late April. The plowing depth is 30cm, turn the soil evenly, pour some water to keep the soil moist, and cover with plastic film;

[0041] (3) Sowing method: After soaking the cotton seeds selected in step (1), sow in t...

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Abstract

The invention discloses a cotton hybrid seed preparing method. The method includes the steps of selecting cotton seeds, selecting and preparing a land, interplanting flowering plants and cotton seeds,and stocking bees for pollination. By means of the method, by closely combining the steps of selecting the cotton seeds, selecting and preparing the land, interplanting the flowering plants and cotton seeds and stocking the bees for pollination, a traditional artificial drone removing and hybrid seed preparing method can be replaced, hybridization can be sufficiently conducted between cotton plants, and the natural hybridization rate of cotton is increased; compared with a traditional artificial drone removing method, the method is easy to operate and saves time and labor, the seed preparingcost is reduced by about one time, and labor intensity is remarkably reduced.

Description

technical field [0001] The invention belongs to the field of agricultural technology, and in particular relates to a cotton hybrid seed production method. Background technique [0002] The production and application of cotton hybrids have played an important role in increasing cotton yield, quality, and resistance. However, the current production mode of cotton hybrids mainly adopts the seed production method of artificial detasseling pollination (accounting for more than 90%). With the increase of labor costs in my country's main cotton producing areas and surrounding areas, the production cost of hybrids has increased year by year, making it difficult for many seed companies engaged in hybrid cotton seed production to continue, which is not conducive to the further large-scale promotion and utilization of hybrid cotton. [0003] Artificial detasseling is the most cumbersome process in cotton hybrids and requires a lot of labor. According to the flowering habit of cotton,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
CPCA01H1/02A01H1/027
Inventor 李定国石治鹏毛小平江勇
Owner YANGTZE UNIVERSITY
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