Breeding method of cytoplasmic male sterile line of quality disease-resistant photo periodical insensitive hibiscus cannabinus

A male sterile line and light insensitivity technology, which is applied in the field of crop genetics and breeding, can solve the problems of fiber production loss, fiber production reduction, etc., and achieve the effects of improving comprehensive utilization, excellent fiber quality, and promoting industrialization extension

Inactive Publication Date: 2015-05-20
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of kenaf is to harvest the bast fiber of the vegetative body. The growth period is sensitive to the photoperiod response, and early flowering leads to a significant decrease in fiber production. Therefore, th

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Introduce kenaf germplasm resources, and sow into rows according to species under long-day conditions (planting 10 plants on average in each row). Each strain of the seven-lobed-leaf kenaf was treated with black cloth for short-day shading treatment (light duration = 12.5h, internal light intensity during shading = 45LUX) for 30 days, and the light-insensitive variety Fuhonghang 992B and the light-sensitive variety Fuhonghang 992B were set. Red 952 was used as a control. Eliminate early-flowering lines due to short-day shading treatment, identify the light-insensitive kenaf germplasm resource Zanyin No. Test and restore the relationship, and confirm that Zanyin No. 1 is the maintenance material;

[0021] (2) The light-insensitive variety Zanyin No. 1 was used as the female parent, and the high anthracnose-resistant variety Fuhong No. 3 (variety a) and the high-quality variety Fuhong No. 7 (variety b) were used as the male parents to obtain 2 hybrids. Hybrid F 1 S...

Embodiment 2

[0031] (1) Sow the self-fertilized kenaf progeny lines according to the variety under long-day conditions (15 plants are evenly planted in each row). Black cloth was used for short-day shading treatment (light duration = 12.5h, internal light intensity during shading = 45LUX) for 30 days, and the light-insensitive variety Zanyin No. 1 and the light-sensitive variety Fuhong 952 were used as controls. We eliminated the early-flowering strains due to short-day shading treatment, and identified the light-insensitive kenaf variety Fuhonghang 1 with growth characteristics comparable to the light-insensitive variety Zanyin 1, and used the cytoplasmic male sterile line Fuhong 952A for preliminary testing Restore the relationship and confirm that Fuhonghang No. 1 is the maintenance material;

[0032] (2) Using the light-insensitive variety Fuhonghang No. 1 as the female parent, crossed with the high anthracnose-resistant variety Fuhong No. 3 (variety a) and the high-quality variety Fuh...

Embodiment 3

[0042] (1) Sow the self-fertilized kenaf progeny lines according to the variety under long-day conditions (10 plants are evenly planted in each row). When the kenaf grows to seven-lobed leaves, each The strains were treated with black cloth for short-day shading treatment (light duration = 12.5h, light intensity during shading = 45LUX) for 30 days, and the light-insensitive variety Zanyin No. 1 and the light-sensitive variety Fuhong 952 were set as controls. The early flowering lines due to short-day shading treatment were eliminated, and the light-insensitive kenaf variety Fuhonghang 952, whose growth characteristics were comparable to the light-insensitive variety Zanyin No. 1, was identified, and the cytoplasmic male sterile line Fuhong 952A was used for initial testing and recovery. Guarantee relationship, confirm Fuhonghang 952 as maintenance material;

[0043] (2) The light-insensitive variety Fuhonghang 952 was used as the female parent, and the high-anthracnose-resista...

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Abstract

The invention relates to a method for breeding a cytoplasmic male sterile line of quality disease-resistant photo periodical insensitive hibiscus cannabinus. The method relates to integrating high quality, disease resistance and photo periodical insensitive performance and other outstanding properties to hibiscus cannabinus; the cytoplasmic male sterile line of hibiscus cannabinus is used as a female parent, the quality, disease-resistant and photo periodical insensitive hibiscus cannabinus is used as a male parent; the female parent and the male parent are subjected to saturation hybridization to obtain a hibiscus cannabinus cytoplasmic male sterile line which has the growth characteristics of photo periodical insensitive performance, high quality, disease resistance, growth stability, high economy and high combining ability. The hibiscus cannabinus sterile line bred by the method can effectively utilize the advantages of photo periodical insensitive performance and hybrid, the hibiscus cannabinus planting area can be widely expanded to international and national tropical zones with low latitude for annual planting, and therefore, the international core competitiveness and original innovation level of domestic cytoplasmic can be greatly increased.

Description

technical field [0001] The invention specifically relates to a breeding method for a high-quality, disease-resistant, light-insensitive kenaf cytoplasmic male sterile line, and belongs to the technical field of crop genetics and breeding. Background technique [0002] Germplasm innovation is a key factor for breakthroughs in crop breeding. High yield, disease resistance and quality are the three goals of crop breeding. Kenaf is an important fiber raw material for my country's hemp spinning and papermaking industries. It is a short-day and often outcrossed crop that loves temperature. It is mainly used for textiles and papermaking. Multipurpose and comprehensive utilization of fibers such as carpets and ropes. In addition, kenaf anthracnose is one of the most serious diseases in kenaf production in my country, and it is an important factor restricting yield stability. Therefore, high quality and disease resistance are necessary breeding target traits for new kenaf varieties....

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
Inventor 林荔辉祁建民吴建梅林培清方平平陶爱芬徐建堂池仁漫林日新张立武
Owner FUJIAN AGRI & FORESTRY UNIV
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