Crossbreeding method of novel Aucuba chinensis

A peach-leaf coral and hybrid breeding technology, applied in the field of plant artificial hybrid breeding, can solve problems such as no plant hybrid breeding.

Inactive Publication Date: 2013-06-12
INST OF BOTANY JIANGSU PROVINCE & CHINESE ACADEMY OF SCI
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Problems solved by technology

[0004] At present, the only plant species of the genus Peachleaf commonly used in gardens is Aoba mosaicus, and there is no report on the cross-breeding of this genus

Method used

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  • Crossbreeding method of novel Aucuba chinensis

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Embodiment Construction

[0009] The female parent Aokisia mosaicus used in the present invention is derived from the cutting plant of the Institute of Botany, Chinese Academy of Sciences, Jiangsu Province, with a seedling age of 11 years; the male parent Himalayan peach leaf coral was introduced from the west of Hubei in the early 1980s, and the age of the tree is about 15 years; the parent parent All grow normally and bear fruit.

[0010] On March 30, 2003, the cross-breeding work of Mosaic Aoki (♀)×Himalayan Peach Coral (♂) was carried out. Before the inflorescence begins to elongate obviously and the petals are not opened, the male and female inflorescences are bagged to prevent other pollen from adhering. When it was observed that most of the petals of the male inflorescence were open, after 3 pm, the male inflorescence of the male parent was collected, dried in the shade indoors, pollen was obtained, and stored in a refrigerator. At 8-10 in the morning, take refrigerated pollen and apply it to t...

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Abstract

The invention discloses a crossbreeding method of novel Aucuba chinensis and belongs to the technical field of Aucuba chinensis plant artificial crossbreeding. Aucuba japonica var. variegata (as a female parent) and Himalaya Aucuba chinensis (as a male parent) introduced for many years, having a high ornamental value and growing and developing normally are used as crossbreeding parents and through crossbreeding of the crossbreeding parents, the novel Aucuba chinensis is obtained. The crossbreeding method comprises the following steps of sleeving bags on pistillate and staminate inflorescences of the parents before blossoming, clipping the staminate inflorescences of Himalaya Aucuba chinensis in blossoming in mid-March, drying the staminate inflorescences in shade in a room to obtain pollen, putting the pollen into a refrigerator, carrying out refrigeration, carrying out pollination of the pistillate inflorescences of Aucuba japonica var. variegate before 10 a.m. on March 30, carrying out pollination of the same inflorescence 3-4 times so that a pollination success rate is improved, fast carrying out bag sleeving after the pollination, removing the bags after bag sleeving for two weeks, and after seed maturation in spring next year, immediately carrying out sowing. The novel Aucuba chinensis hybrid obtained by the crossbreeding method has obvious hybrid characteristics.

Description

technical field [0001] The invention belongs to the technical field of plant artificial hybrid breeding, in particular to a method for artificial hybrid breeding of Aucuba japonica Thunb.var.variegata (♀)×Aucub himalaica (♂). Background technique [0002] The plants of the genus Peach Coral are all evergreen shrubs or small trees. They are mainly used for viewing leaves, postures and fruits. They have strong resistance to shade and cold, and have high ornamental value. Especially the most widely used mosaic Aoki, the leaves are green with golden spots, and have high ornamental value. It is one of the very important shade-tolerant evergreen shrubs in East China. Peach Coral plant species have bright red infructome in early spring, such as bright red agate inlaid in green leaves, very beautiful, and it is one of the most outstanding fine ornamental tree species in the garden. [0003] Mosaic Aoki is an evergreen shrub, native to Japan, with opposite leaves, leathery, sparsely...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 刘兴剑孙起梦
Owner INST OF BOTANY JIANGSU PROVINCE & CHINESE ACADEMY OF SCI
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