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Method for shortening chimonanthus praecox breeding period

A technology of wax plum and age, applied in the field of shortening the breeding period of wax plum, can solve problems such as unfavorable breeding of fine varieties and the response and adjustment of market demand, short time of about 10 years, and unstable flowering characteristics. The effect of increasing cold resistance and frost resistance, reducing breeding management costs, and improving resource utilization

Pending Publication Date: 2021-02-02
SICHUAN AAS HORTICULTURE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In traditional breeding work, it usually takes 3-4 years from sowing to flowering of wintersweet. Since it is the beginning of flowering, the amount of flowers is very small, and the flowering traits in the first two years are not stable enough, so it usually takes 5-6 years to basically reach the full flowering stage and flowering. Observations and records can only be made after the internal traits are stable, which truly reflect the characteristics of the variety. Afterwards, it takes another 1-2 years to find a good single plant, and at least 3 years for regional experiments. The breeding cycle is longer, and it often takes about 10 years to breed a new variety at the shortest time.
The breeding cycle is long, which is not conducive to the selection of excellent varieties and the response and adjustment of market demand

Method used

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  • Method for shortening chimonanthus praecox breeding period
  • Method for shortening chimonanthus praecox breeding period
  • Method for shortening chimonanthus praecox breeding period

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Comparison of Sowing Methods of 'Starlight' Variety

[0056] (1) Nursery site selection and preparation: Choose a plot that is leeward to the sun, with relatively flat land, convenient drainage and irrigation, deep soil, loose and fertile soil. Deep plowing and raking are carried out before sowing, and the plowing depth is ≥20cm, and stones and weeds are removed. Make a furrow with a width of 1-1.2m and a height of 30cm, and cover and disinfect it with 1% potassium permanganate or 800 times carbendazim film for 7 days. Dry for 2 weeks before use.

[0057] (2) Seed harvesting and processing: On June 15, 2011, harvested the fruit receptacle of 'Apical Quilt'. At this time, the receptacle had just changed from green to light yellowish brown and began to shrink, and the seeds were immediately peeled off and waited. broadcast.

[0058] (3) Sowing (set spring sowing ratio at the same time):

[0059] Picking and sowing: On June 16, 2011, the stripped seeds were directly dr...

Embodiment 2

[0084] Shortening the Seed Selection Years of Wintersweet

[0085] (1) Nursery site selection and preparation: On May 20, 2008, a plot with leeward and sunny sides, relatively flat land, convenient drainage and irrigation, deep soil layer, loose and fertile soil was selected. Deep plowing and raking are carried out before sowing, and the plowing depth is ≥20cm, and stones and weeds are removed. Make a furrow with a width of 1-1.2m and a height of 30cm, and cover and disinfect it with 1% potassium permanganate or 800 times carbendazim film for 7 days. Dry for 2 weeks before use.

[0086] (2) Harvesting and processing of seeds: On June 13, harvested the fruit holder of 'Sharpweed' Wintersweet. At this time, the fruit holder had just changed from green to light yellowish brown and began to shrink. Immediately peel off the seeds and wait for sowing.

[0087] (3) Sowing: adopt the method of harvesting and sowing. On June 13, the stripped seeds will be directly sowed on the seedbed ...

Embodiment 3

[0098] ‘Happy Flower Fragrance’ x ‘Starlight’ hybrid combination Wintersweet

[0099] (1) Nursery site selection and preparation: On May 18, 2015, at the Xindu base of the Sichuan Academy of Agricultural Sciences, a leeward and sunny plot with relatively flat land, convenient irrigation and drainage, deep soil, loose and fertile soil was selected for deep plowing. Plowing depth ≥ 20cm, remove stones and weeds. Rake flat, make furrows, 1-1.2m wide, 30cm high, and cover with film for disinfection after watering formalin for 7 days. Dry for 2 weeks before use.

[0100] (2) Harvesting and processing of seeds: On June 17, harvested the wintersweet fruit holders of the hybrid combination 'Happy Flower Fragrance' x 'Bright Star' that had just changed from green to light yellow-brown and began to shrink, and peeled off the seeds. broadcast.

[0101] (3) Sowing: On the same day, directly sow the stripped seeds on the prepared seedbed, the row spacing is 20-30cm, the plant spacing is...

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Abstract

The invention discloses a method for shortening the chimonanthus praecox breeding period. The method comprises the following steps of (1) sowing seeds in time after harvesting in early summer; (2) sowing and seedling management; (3) high branch grafting; and (4) dwarfing and promoting flowering. According to the method, by means of the comprehensive innovative integrated technology of sowing whilepicking, high branch grafting and dwarfing flower promoting, the chimonanthus praecox breeding period can be effectively shortened by two years or above, the time is saved by about one year when sowing while picking compared with traditional spring sowing in the next year, high branches of 1.5-year-old sowing seedling branches are grafted to mature and strong plants, early flowering is promoted,and the breeding period can be shortened by 1-2 years; and dwarfing and flower promoting further guarantee the flowering rate of annual grafted plants, the observation time of flower characteristics can be effectively guaranteed and advanced, the breeding management and protection cost and the land occupation time are reduced through the comprehensive innovative integration technology, the resource utilization rate is increased, the breeding cost is greatly reduced, and the breeding process is promoted.

Description

technical field [0001] The invention relates to the technical field of tree breeding, in particular to a method for shortening the breeding period of wintersweet. Background technique [0002] Wintersweet is a unique traditional precious ornamental flower native to my country. It has luxuriant branches and leaves, cold resistance, drought resistance, slight shade tolerance, strong growth potential and strong branching power. It has the functions of greening, beautifying, coloring, water and soil conservation, and environment and air purification. It is an indispensable tree species for environment creation, greening of industrial and mining enterprises, and returning farmland to forests. It is also an excellent material for fresh cut flowers and bonsai. Its roots , stems, leaves, flowers, fruits and buds can be used as medicine. Wintersweet flower has unique aroma components, which can be used to extract essence, scent tea, make wintersweet beverage, wintersweet food, cook di...

Claims

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Application Information

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IPC IPC(8): A01G2/30
CPCA01G2/30
Inventor 宋兴荣袁蒲英
Owner SICHUAN AAS HORTICULTURE RES INST
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