Method capable of increasing both ornamental value and seed production quantity of cosmos sulphureus

Abstract

The invention belongs to the technical field of plant breeding, and relates to a plant cultivation method, in particular to a method capable of increasing both the ornamental value and the seed production quantity of cosmos sulphureus. By means of the method, the cosmos sulphureus has the ornamental value for landscaping, seeds of the cosmos sulphureus can be harvested, lodging can be effectively prevented, the seed yield is increased, the seed quality is improved, the production cost is reduced, and the benefit is increased. The method has the advantages that the seedling emergence speed and the seedling growth speed can be increased, the flower season can come in advance, and the flower appreciation period is prolonged; lodging will not occur easily in the growing period; branching of plants can be promoted, and therefore the number of flowers can be increased after germination and branching; regrowth of the cosmos sulphureus is effectively promoted, the number of the flowers can be further effectively increased after germination and branching by cutting away main branches and the upper portions of branches, and therefore the seed yield is increased.

Description

Technical field [0001] The invention relates to a plant breeding method, in particular to a method for simultaneously improving the ornamental properties and seed production of sulfur chrysanthemum, belonging to the technical field of plant breeding. Background technique [0002] Sulphur chrysanthemum scientific name: Cosmos sulphureus), also known as Huang Qiuying, yellow cosmos, and sulphur chrysanthemum, is an annual herb of the genus Chrysanthemum in the Compositae family, native to Mexico. The plant is multi-branched, with a height of 30-150 cm, opposite leaves, bipinnately compound leaves, deeply divided, lobes are lanceolate, short pointed, and the leaf margins are rough. The head-shaped flower is born on the top of the branch, the tongue-shaped flower, the color of the flower changes continuously from pure yellow, golden, orange to orange red, the discus tube flower is yellow to brown red, and the flower type has two kinds of single petals and double petals. The flowerin...

AI Technical Summary

Problems solved by technology

[0004] Ornamental cultivation of sulfur chrysanthemum can be carried out in spring, summer and autumn. However, in seed production and cultivation, spring sowing blooms earlier due to the hot summer, and many flowers do not bear fruit. Autumn sowing is too late due to frost, and the plant type is short. When flowering, there are few branches. , affect the number of flowering, and the maturity of the seeds is not good, affecting the yield and quality

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