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Efficient cross breeding method for E. pungens var. variegata

A technology of hybrid breeding and squid, which is applied in the field of artificial hybrid breeding of woody plants, can solve the problems of weak chemical composition research and lack of chemical research, and achieve the effect of simple operation, improved purity and fruit setting rate

Pending Publication Date: 2017-11-21
INST OF BOTANY JIANGSU PROVINCE & CHINESE ACADEMY OF SCI
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Problems solved by technology

Our country is very weak in the study of the chemical constituents of the plants of the genus Hippophae rhamnoides and the genus Saplings, especially the lack of systematic and in-depth chemical research on the plants of the genus Saplings

Method used

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Embodiment Construction

[0015] Further introduce the method of the present invention below by implementing case

[0016] Crossbreeding of S. phnom Penh at the Institute of Botany, Chinese Academy of Sciences, Jiangsu Province (32º07´N, 118 º48´E), using S. chrysalis planted by the Institute of Botany, Chinese Academy of Sciences, Jiangsu Province as breeding material: S. phnom Penh (♀) ╳ Big-leaf Hudaozi ( E. macrophylla Thunb.) (♂). First record and number the hybrid combination, single plant, system number and plant morphology observation and record of S. sativa.

[0017] (1) Step 1: In early September, prevent and control plant diseases and insect pests on the plants of the genus Scutellaria genus planted in the nursery to ensure the normal growth of the plants. The specific method is: spraying with 100 times of 75% carbendazim wettable powder can effectively prevent The common leaf spot and rust of Phnom Penh Elderberry; spraying with 40% Dimethoate EC 1000 times can effectively prevent the da...

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Abstract

The invention provides a method for increasing the cross pollination efficiency of E. pungens var. variegata and belongs to the technical field of artificial cross breeding of woody plants. The method comprises the steps: (1) disease and insect pest control; (2) pollen collection; (3) flower thinning; (4) castration, bagging and artificial pollination; (5) crossbreed collection and stratifcation; and (6) sowing, wherein castration is carried out in the full-bloom stage of the E. pungens var. variegata, flower buds which are consistent in growth on each flowering branch of the E. pungens var. variegata are retained, and the rest flower buds are trimmed and removed. The method provided by the invention is not only simple in operation, but also capable of effectively keeping the complete natural structures of flowers and effectively increasing the fruit setting rate of natural crossing from 8% to 65% and high in success rate of cross pollination. By using the method, the castration efficiency of the E. pungens var. variegata is effectively increased, false crossbreeds are avoided, and the purity and fruit setting rate of the crossbreeds are effectively increased.

Description

technical field [0001] The invention relates to a method for cultivating hybrids of evergreen colorful-leaf ornamental plants, in particular to a method for hybrid breeding of S. philodendron, belonging to the technical field of artificial hybrid breeding of woody plants. Background technique [0002] There are more than 80 species of 3 genera in the whole world, namely Elaeagnus, Hippophae and Shepherdra, which are mainly distributed in southeastern Asia and other parts of Asia. North America is also distributed. The genus Elaeagnus is a shrub of the family Elaeagnus. The fruit is sweet and sour, and is very popular among people. It is a very promising resource of wild ornamental fruit trees. At the same time, many plants in this genus are precious medicinal and edible plants. , which is widely distributed and mainly produced in China. There are more than 80 species of this genus in the world, and China accounts for 55 species. Commonly used ones include E.pungensThunb., ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 陈红陆小清李云龙王传永李乃伟张凡蔡小龙
Owner INST OF BOTANY JIANGSU PROVINCE & CHINESE ACADEMY OF SCI
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