Method for promoting nemophila menziesi seed germination

Abstract

The invention discloses a method for promoting nemophila menziesi seed germination. The method comprises the following steps of 1, selecting nemophila menziesi seeds, 2, preparing a nemophila menziesi seed immersion solution, and immersing the nemophila menziesi seeds, 3, preparing river sand and paving the nemophila menziesi seeds, 4, refrigerating the nemophila menziesi seeds, and 5, carrying out seed temperature-changing treatment. The method is simple and feasible, has simple processes, improves breathability and water permeability of seed coats of nemophila menziesi seeds, and promotes cell division and differentiation thereby promoting nemophila menziesi seed embryo development and nemophila menziesi seed germination. The method utilize a temperature-changing treatment technology to promote the whole metabolism of the nemophila menziesi seed so that a germination inhabitation material is eliminated, cytokinin synthesis is promoted, and inhibition hormones such as abscisic acid are degraded and transformed and thus dormancy is stopped, nemophila menziesi seed germination is promoted, germination time is short, germination uniformity is obtained, effects are obvious, and nemophila menziesi large-area production seedling is promoted.

Description

technical field [0001] The invention relates to a method for germination and propagation of ornamental flower seeds, in particular to a seedling raising method for breaking dormancy of chrysanthemum seeds and promoting germination, and belongs to the technical field of plant breeding. Background technique [0002] chrysanthemum ( Nemophila menziesi ) is a genus of the genus Pollenaceae, native to the Pacific coast of North America. The height of the plant is 10-30cm. The whole plant is covered with rough hairs, multi-branched, and the flowers are solitary in the leaf axils. There are pure white, purple, white with blue edges, and bright blue with white hearts or spots. The flowering period is from April to June. The capsule is spherical, and the seed size of different varieties of chrysanthemum is different. The chrysanthemum is widely used in flower mirrors, flower bushes, and flower groups. It is often used for bordering flower beds or potted plants for viewing. It can b...

AI Technical Summary

Problems solved by technology

But existing chrysanthemum seed seed coat has sticky matter, and seed has dormancy phenomenon, and germination rate is low, and seed germination is slow, and germination is irregular, and the seed germination rate of general chrysanthemum newly harvested is less than 30%, and after dry storage The germination rate of the seeds is less than 50%, which is far from the requirements of seed quality inspection and the needs of a large number of seedlings. At present, there is no literature about promoting the germination of chrysanthemum seeds.