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Method for interspecific hybridization culture of rose cultivar

A technology for roses and varieties, applied in the field of plant cultivation, can solve the problems affecting the process of hybrid breeding, unstable variety characteristics, and abortion of pollination stigma, etc., and achieves the effects of elegant and pure fragrance, improvement of drought resistance, cold resistance, salt and alkali resistance, and long flowering period.

Active Publication Date: 2016-07-13
北京水木中天植物科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From screening parental combinations to obtaining hybrid seedlings, one often has to experience pollination stigma abortion, underdeveloped seeds, difficulty in emergence of hybrids, unstable variety characteristics, easy degradation, and infertility of hybrid offspring, etc.
These factors have seriously affected the progress of hybrid breeding
There have been reports at home and abroad on the research on the compatibility of distant hybridization of roses, but the root cause of the incompatibility mechanism has not been clarified so far

Method used

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  • Method for interspecific hybridization culture of rose cultivar
  • Method for interspecific hybridization culture of rose cultivar
  • Method for interspecific hybridization culture of rose cultivar

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0039] a. Establish an experimental field in Zibo, Shandong, select healthy parents without disease and pests, and conduct male parent B line Baiyutang rose (Rosamultiflora Thunb.Var.Albo-plena Yüet Ku ) artificial pollination. Carry out artificial daily management after hybridization, and collect good seed F 1 . In the second year, the hybridized seeds F 1 Sow seeds separately, compare and identify them, select better plants among them for selfing, and carry out manual daily management after selfing, and most of the plants produced are red in color. 2(R) , a small number of plants with white flowers F2(w), collect the plants F with white flowers 2(w) Seed. Cultivate white roses in the coming year F 2(w) , and then F again 2( w) Selfing. The white rose plant F3 with ideal flower leaf shape, plant flower yield, fragrance type, and resistance was selected, which was Zhongtian Rose No. 5 (Toprose No: 5). Describe the situation of the above-mentioned experimental field in ...

Embodiment 2

[0067] No. 5 Zhongtian Rose (ToproseNo:5) of embodiment 1 is carried out stress resistance experiment, specifically as follows:

[0068] Cold tolerance: Inner Mongolia Baotou Fruit Tree Research Institute was entrusted to plant 500 Zhongtian Rose No. 5 (Toprose No: 5) in Huangmo, Guyang County, for overwintering experiments. It is manifested that there are 10-20 cm strips at the top shoots of the common overwintering in the first year of planting, and no strips appear in the second year and thereafter. Through practice, in the second year of planting, water control and fertilizer saving measures are taken to prevent excessive growth of branches, so that they can fully form woody quality, and better solve the problem of safe overwintering at minus 38 ℃. The test results show that the average cold resistance index of Zhongtian Rose No. 5 is 0.4, the frostbite length of branches is less than 15%, and there is basically no frostbite.

[0069]Salt-alkali resistance: In cooperation...

Embodiment 3

[0078] The flowers of different rose varieties are extracted with steam distillation. The extraction process parameters are: liquid-to-solid ratio 4:1, distillation time 4h, distillation speed 200mL / h (distillate of 10% distillate volume per hour) ), the charging capacity is 75% of the distiller. The experimental results are shown in Table 3.

[0079] table 3

[0080]

[0081] From the data in Table 3, it can be seen that the rose balm oil rate of the present invention reaches 0.053, which is higher than the Damask rose with high oil at present.

[0082] The chemical composition was determined by capillary gas chromatography-mass spectrometry.

[0083] Instrument: GC / 7AG chromatograph (Shimadzu, Japan), analytical column: quartz capillary column, 50m×0.3m, column temperature 80-180°C, 2°C / min temperature program, vaporization temperature 240°C, carrier gas is N 2 , the carrier gas flow rate is 60mL / min, and the injection port temperature is 240°C. Mass spectrometry cond...

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Abstract

The invention provides a method for interspecific hybridization culture of a rose cultivar.A new rose species with excellent characters of parents is generated through hybridization of wild rose and traditional rose.The female parent line A is Rosa gugosa cv.plena, the male parent line B is Rosa multiflora thunb.Var.Albo-plena Yuet Ku, the offspring F1 with the comprehensive characters of the traditional rose line A as well as the target characters of the wild rose line B are cultured and screened through hybridization, F1 is subjected to selfing and purification, the flower color of generated plants is red mostly and white as minority, selfing of plants with white flower color is conducted, and a new generation of white hybridization rose cultivar which can bloom continuously, has both comprehensive characters and target characters and is stable is selected.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and in particular relates to a method for cultivating rose varieties through interspecific hybridization. Background technique [0002] The genus Rosa (Rosa L.) belongs to the Rosaceae Rosaceae. There are more than 200 species in the world, and 91 species are produced in China. Chinese rose, rose and Rosa are its representative plants. Roses are native to the Orient, but are now probably found all over the world, mainly in temperate regions. There are more than 100 different varieties of roses, including wild roses, and there are about 30,000 officially registered varieties of hybrids and varieties. [0003] At present, most roses are planted using traditional roses. Traditional roses bloom in one season, have relatively poor resistance, low yield of essential oil, single fragrance type, low yield, and limited suitable growing areas. Moreover, white roses are rare and the diameter of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 毕琰玉
Owner 北京水木中天植物科学研究院
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