Method for promoting germination of rosa multiflora seeds

Abstract

The invention discloses a method for promoting rosa multiflora seed germination, which comprises the following steps: 1) pretreating rosa multiflora seeds to obtain pure seeds; 2) low-temperature stratification: sowing the pure seeds in the step 1) on an agar culture medium, and performing low-temperature stratification treatment under the condition of alternation of illumination and darkness; and (3) culturing and germinating, namely culturing under the condition of alternation of illumination and darkness until the seeds germinate. According to the method, seed dormancy can be effectively broken through by adopting low-temperature lamination and illumination and darkness alternate culture conditions, germination of rose seeds is promoted, different germination methods, different lamination temperatures, different time, different germination temperatures and the like are designed according to characteristics of wild rose seeds and cultivated rose seeds, and the method is simple and convenient to operate, high in applicability and suitable for large-scale popularization and application. Meanwhile, germination rate is high, germination time is uniform, large-scale popularization and application are facilitated, and development of rosa multiflora seed industry is facilitated.

Description

technical field [0001] The invention belongs to the technical field of plant seed germination. Background technique [0002] Plants of the genus Rosa (Rosa L.) belong to the Rosaceae (Rosaceae), which are perennial, deciduous or evergreen, shrubs, vines or climbing vines. There are more than 200 species of Rosa in the genus, which are native to the northern hemisphere and widely distributed in cold temperate to subtropical regions of Asia, Europe, North Africa, North America and other continents. Many species of Rosa are famous ornamental, edible and medicinal plants. Rose, rose and Rosa are its representative plant groups. There are many varieties of roses. According to the data registered by the American Rose Association, there are about 30,000 to 35,000 cultivated rose varieties. They are one of the most economically valuable crops in the world. Roses have extremely high ornamental and application values ​​for landscaping. Edible, medicinal and cosmetic. [0003] Rose...

AI Technical Summary

Problems solved by technology

The achene is surrounded by pericarp, which is divided into exocarp and endocarp. The exocarp is a hard bony layer, and the endocarp is a very tough fiber layer. There is a testa inside, which is thick and firm, making rose seeds poor in water permeability. It is difficult for the seed embryo to absorb water, and rose seeds have deep dormancy characteristics, resulting in difficulties in germination of rose seeds, low germination rate and uneven germination time

The few existing rose seed germination methods often use concentrated sulfuric acid to burn the shell, artificially peel off the seed coat, etc. to relieve the restriction of the seed coat on seed germination, or use plant hormones such as gibberellin and naphthalene acetic acid to break the physiological dormancy of seed germination. Numerous, complex operations, requiring sterile conditions, poor universality, resulting in low promotion of rose seed industry, limited introduction and propagation of roses

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