One-step after-ripening method of magnolia sieboldii seed

Abstract

The invention relates to a one-step after-ripening method of a magnolia sieboldii seed. The method comprises the steps of soaking the seed with mixed solution of 1.10-1.30mg.L-1 of 6-benayl aminopurine and 2.10-2.30mg.L-1 of 2,4-dichlorphenoxyacetic acid, then fishing the seed out, evenly stirring the seed with river sand and then packaging into a wood tank with good air permeability; and covering a plastic film and arranging the wood tank inside a room to carry out 93-114d of poikilothermic treatment, wherein the temperature range and time are that the temperature during the day is 18+ / -2 DEG C, the treatment time is 16 hours, the temperature at night is 7+ / -2 DEG C, and the treatment time is 8 hours, and then the seed develops to become a mature embryo cotyledon seed. According to the method, not only are the difficulties that the seeds do not germinate or a few of seeds germinate in the same year of being sown and the rooting percentage of vegetative propagation such as cottage is very low solved, but also the difficulties of long time, poor maneuverability, low germination rate and the like caused by step-by-step physiological after-ripening in the past are overcome. Therefore, the one-step after-ripening method has important significance on providing excellent seedings in further artificial large-scale cultivation.

Description

[0001] technical field [0002] The invention relates to a plant cultivation technology, that is, a one-step after-ripening method for magnolia florida seeds. Background technique [0003] In the prior art, small flower Magnolia ( Magnolia sieboldii K. Koch) alias Tiannv Mulan, Tiannvhua, Shan peony, Magnoliaceae Magnolia is a small deciduous tree, flowers, leaves, roots can extract high-grade spices. Wood can be used for furniture, utensils and carvings. The flowers contain eugenol, citral, anethole, etc. The leaves contain aromatic oil with an oil content of 0.2%, which can extract spices. The seeds contain fatty oil with an oil content of 23.9%, which can be used to make soap from oil. For nectar and green ornamental plants. The number of small flower magnolias in Changbai Mountains is small, and they are only concentrated in Ji'an and Linjiang cities in the south of Laoling Mountains, an important branch on the southwest slope of Changbai Mountains, and only sporadic...

AI Technical Summary

Problems solved by technology

[0004] After the seeds of Mulan florist are harvested in autumn, most of the embryos are in the heart-shaped embryo and the late stage of the heart-shaped embryo. Such seeds do not germinate or very few germinate in the year of sowing, and the rooting rate of asexual reproduction such as cuttings is extremely low, and the wild resources are extinct. Sexual threat, large-scale artificial cultivation, development and utilization are greatly restricted

[0005] In previous studies, the post-ripening methods adopted have the disadvantages of complex steps, long time, low germination rate and poor operability. The present invention has carried out experimental explorations for the above deficiencies, in order to solve the above deficiencies and achieve fast post-ripening of Magnolia florida seeds. Target