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Ornamental cotton hybrid seed production method

A technology for hybrid seed production and ornamental cotton, which is applied in the fields of botany equipment and methods, application, plant gene improvement, etc. It can solve the problems of long breeding cycle, increased nutrient demand, and large parental selection limitations, so as to reduce the cost of planting , The effect of shortening the breeding cycle and long breeding cycle

Inactive Publication Date: 2016-02-03
SHANDONG COTTON RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing ornamental cotton breeding methods have a long breeding cycle, large parental selection limitations, and unstable fertility of distant hybrid offspring, which increases the difficulty of ornamental cotton breeding
At the same time, the ornamental cotton bred can form bolls and open bolls, which increases the nutrient requirements. After the reserved seeds are replanted, the purity of the ornamental cotton cannot be guaranteed due to natural hybridization.

Method used

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  • Ornamental cotton hybrid seed production method
  • Ornamental cotton hybrid seed production method
  • Ornamental cotton hybrid seed production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. Plant short-season cotton HB safflower marker materials S068 and T586.

[0022] 1.1 S068 was used as the female parent, and after emasculation, T586 was used as the male parent to pollinate S068 and cross to obtain F1.

[0023] 1.2 Plant F1 and perform self-crossing to obtain F2 population.

[0024] 1.3 Plant F2, and select a single plant with safflower, red stem, red leaves and less hair according to the phenotype of each cotton plant.

[0025] 1.4 Plant the selected individual plants, and select individual plants with safflower, red stems, red leaves and less hair for selfing.

[0026] 1.5 Same as step 1.4, until a stable line 13N9 with safflower, red stem, red leaves and less hair is bred.

[0027] 2. Planting 13N9 and cotton cytoplasmic sterile line material 118A

[0028] Using 118A as the donor parent and 13N9 as the recurrent parent, the line 13N9A with safflower, red stem, red leaves and less hair was obtained through backcrossing.

[0029] 3. Planting 13N...

Embodiment 2

[0032] 1. Plant short-season cotton materials S067 and T586.

[0033] 1.1 S067 was used as the female parent, and after emasculation, T586 was used as the male parent to pollinate S067 and cross to obtain F1.

[0034] 1.2 Plant F1 and perform self-crossing to obtain F2 population.

[0035] 1.3 Plant F2. According to the phenotype of each cotton plant, select a single plant with white flowers, red stems, red leaves, and less hair.

[0036] 1.4 Plant selected individual plants, select individual plants with white flowers, red stems, red leaves, and less hair for selfing.

[0037] 1.5 Same as step 1.4, until a stable line 13N8 with white flowers, red stems, red leaves and less hair is bred.

[0038] 2. Planting 13N8 and cotton cytoplasmic sterile line material 118A

[0039] With 118A as the donor parent and 13N8 as the recurrent parent, the line 13N8A with white flowers, red stems, red leaves and less hair was obtained through backcrossing.

[0040] 3. Planting 13N8A and 13N8...

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Abstract

The present invention provides an ornamental cotton hybrid seed production method, a short season cotton conventional material or a short season cotton HB safflower marked material is used for hybridization with upland cotton material T586, by hybridization breeding, stable lines carrying different traits are bred; the lines are transformed into sterile lines by use of an upland cotton cytoplasmic sterile line material as female parent and the bred stable lines carrying different traits respectively as male parent; the obtained sterile line carrying target trait is selected as female parent, sea island cotton sea 7124 or upland cotton HB is selected as male parent, hybridized combination is configured, and the generation F1 is ornamental cotton. The method can shorten the breeding cycle of the ornamental cotton, and broaden the ornamental cotton parental origin. The performances of the ornamental cotton in planting are: sterility, and only flowering without balling and opening of bolls, nutrient demand is relatively less, the cost of cultivation is reduced, and the purity of the ornamental cotton can be ensured because no seed is left for re cultivation.

Description

technical field [0001] The invention relates to the field of biological breeding, in particular to a hybrid seed production method for ornamental cotton. Background technique [0002] Cotton is one of the main economic crops in my country, and the cotton fiber produced is an important raw material for the textile industry. Cotton leaves are usually green and the flowers are creamy white, turning crimson shortly after flowering and then wilting. Because it requires a lot of nutrients to form bolls and open bolls, it is not suitable for viewing. Ornamental cotton is a new type of cultivated cotton with colorful flowers, specific shapes of stems, leaves and plant types, rich types, and ornamental value. Ornamental cotton not only has the characteristics of long flowering period, drought resistance and strong adaptability, but also has rich flower colors, specific leaf color and shape, and many plant types. Ornamental cotton can be cultivated in the open field or made into bo...

Claims

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Application Information

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IPC IPC(8): A01H1/02
Inventor 高明伟王秀丽赵军胜姜辉陈莹王家宝张超王爱玉
Owner SHANDONG COTTON RES CENT
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