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Breeding method of primula forbesii variety

A small primula and variety technology, applied in botany equipment and methods, plant products, plant gene improvement, etc., can solve the problem of unsatisfactory specificity, consistency, and stability of new varieties, cumbersomeness, and self-incompatibility Sex and other issues, to achieve the effect of improving the viewing value

Active Publication Date: 2010-08-04
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In traditional breeding methods, continuous multi-generation self-crossing methods can effectively obtain homozygotes with stable inheritance of traits. Due to the self-incompatibility of Primula miniature, pollination at the bud stage, excision of stigmas, pollination in the ovary, and isolation can be used. Somatic fertilization, phytohormone treatment of pistils and other methods overcome self-incompatibility, so that plants can obtain inbred lines, but the implementation of these methods requires high technical requirements and is cumbersome, and the specificity, consistency, and stability of the new varieties obtained are low. unsatisfactory

Method used

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  • Breeding method of primula forbesii variety

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] At the end of August 2004, more than 10,000 seeds of Primula miniature were sown in the greenhouse in Beijing, and covered with plastic wrap to maintain a certain humidity and temperature. After a week, the seeds began to germinate, and the plastic wrap was removed when two cotyledons grew. After one month, more than 8,000 seedlings were planted in flower pots of 10 cm × 15 cm when two true leaves grew out. Regularly spray Hoagland nutrient solution to promote plant vegetative growth. Watering pay attention to see dry see wet.

[0034] In December, Xiaobaochun enters the reproductive growth stage. At this time, visual observation was carried out in a large number of groups, and the Royal Horticultural Society ColourChart was used to divide Primula miniature into 5 strains in terms of flower color, namely: PURPLE-VIOLETGROUP N81A; RED-PURPLE GROUP 67A; PURPLE GROUP N78B; PURPLE GROUP N78C; PURPLE GROUP 76B; observe the flower type with the naked eye, look for variation...

Embodiment 2

[0044] At the end of August 2004, more than 10,000 seeds of Primula miniature were sown in the greenhouse in Beijing, and covered with plastic wrap to maintain a certain humidity and temperature. After a week, the seeds began to germinate, and the plastic wrap was removed when two cotyledons grew. After one month, more than 8,000 seedlings were planted in flower pots of 10 cm × 15 cm when two true leaves grew out. Regularly spray Hoagland nutrient solution to promote plant vegetative growth. Watering pay attention to see dry see wet.

[0045] In December, Xiaobaochun enters the reproductive growth stage. At this time, visual observation was carried out in a large number of groups, and the Royal Horticultural Society ColourChart was used to divide Primula miniature into 5 strains in terms of flower color, namely: PURPLE-VIOLETGROUP N81A; RED-PURPLE GROUP 67A; PURPLE GROUP N78B; PURPLE GROUP N78C; PURPLE GROUP 76B; observe the flower type with the naked eye, look for variation...

Embodiment 3

[0054] At the end of August 2004, more than 10,000 seeds of Primula miniature were sown in the greenhouse in Beijing, and covered with plastic wrap to maintain a certain humidity and temperature. After a week, the seeds began to germinate, and the plastic wrap was removed when two cotyledons grew. After one month, more than 8,000 seedlings were planted in flower pots of 10 cm × 15 cm when two true leaves grew out. Regularly spray Hoagland nutrient solution to promote plant vegetative growth. Watering pay attention to see dry see wet.

[0055] In December, Xiaobaochun enters the reproductive growth stage. At this time, visual observation was carried out in a large number of groups, and the Royal Horticultural Society ColourChart was used to divide Primula miniature into 5 strains in terms of flower color, namely: PURPLE-VIOLETGROUP N81A; RED-PURPLE GROUP 67A; PURPLE GROUP N78B; PURPLE GROUP N78C; PURPLE GROUP 76B; observe the flower type with the naked eye, look for variation...

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Abstract

The invention relates to a breeding method of a primula forbesii variety, which comprises the following steps: selecting two plants as parent from primula forbesii cultivation groups with the same flower color and flow model, wherein one plant is a long stigma flower and the other plant is a short stigma flower; then carrying out emasculation, bagging, pollen acquisition, artificial pollination, bag removal and harvesting and breeding of double-cross seeds; and finally repeatedly hybridizing and breeding for 3-4 years to obtain the primula forbesii variety which has consistent phenotypic expression, stable heredity and no segregation character phenomenon. The breeding method can effectively fix the character, enable various single plants in the breed to tend to be homozygous and solve the breeding difficult problem caused by self-incompatibility; and besides main target characters (flower colors and flower models) are obtained, other fancypoints such as flower diameter and the like can be greatly improved, the progeniture flow diameter is gradually increased and the ornamental value can be further improved.

Description

technical field [0001] The invention belongs to the field of plant breeding, in particular to a breeding method for Primula forbesii Franch. varieties. Background technique [0002] Primula is one of the world's three most famous alpine flowers, and is famous all over the world for its gorgeous flower colors. There are about 500 species of primroses in the world, and there are nearly 300 species in China, which is the modern distribution center of primroses. But so far there are few new varieties of primroses with my country's independent intellectual property rights coming out. One of the reasons is that primroses have self-incompatibility, and many excellent ornamental characters cannot be expressed uniformly, let alone stably inherited. [0003] Small Primula (Primula forbesii Franch.) is a unique plant of the Primula family Primulaceae in my country. It is native to the Yunnan region of my country at an altitude of 1500-2000m. Primula forbesii Franch. is a biennial he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/04A01H1/02A01H5/02A01G31/00
Inventor 张启翔贾茵潘会堂孙明程堂仁董玲玲
Owner BEIJING FORESTRY UNIVERSITY
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