Method for breeding and planting begonia evansiania 'Kaiyun'

Abstract

The invention discloses a method for breeding and planting begonia evansiania 'Kaiyun' (a variety of begonia evansiania), which adopts the artificial pollination. The method comprises the following steps: adopting the B. 'Silvery Pearl' as female parent and adopting the B.augustinei Hemsl. as male parent to execute artificial pollination and hybridize; then selecting and breeding from F1 generation group; and testing the number of chromosome of the parents and filial generation, wherein the leaf of the new bred variety of the begonia evansiania B. 'Kaiyun' is in amaranth from which silvery white transmits in young stage; when the leaf grows gradually, the complete color of the leaf is in silvery white with a little amaranth, and excepting the parts of the leaf along the main vein and the lateral veins are in linear green, the rest parts are in silvery white spots. The begonia evansiania 'Kaiyun' is planted in humus soil with rich organic substance, good air permeability and drainage when the temperature is 15-25 DEG C and relative air humidity is 65-75%.

Description

Technical field: [0001] The invention belongs to the field of biotechnology, and in particular relates to a method for cultivating Begonia plants, and a new variety 'Kaiyun' begonia (B.'Kaiyun') cultivated by the method; Kering' cultivation method. Background technique: [0002] There are more than 1,600 species of Begonia L. plants in the world, which are widely distributed in tropical and subtropical regions, and are also distributed in temperate regions. China is one of the countries with rich natural distribution of Begonia plant species. There are 224 known and published species, of which 197 species are unique to China, accounting for about 87.9% of the species distributed in China. Yunnan is located in the southwestern border of China, and is extremely rich in plant species, especially Begonias. There are 110 known and published species, accounting for about 49.1% of the natural distribution species in China, of which 74 species are unique to Yunnan. [0003] Begoni...

AI Technical Summary

Problems solved by technology

Breeding of begonias in my country started relatively late, and mainly carried out the breeding of new varieties of begonias mainly based on sexual hybridization, combining natural variation selection and sexual hybridization, focusing on leaf viewing, and combining leaf viewing and flower viewing. Combining fragrant flower varieties, few new varieties have been bred so far. The ornamental features such as leaf shape, markings, color, bristles, etc., and the adaptability to low temperature, low humidity, and slightly strong light are the breeding goals. From sexual hybridization F2 and F1 generation populations, and the report of breeding new varieties in aerospace breeding M1 generation populations

Images