Seed seedling raising method for Paris polyphylla var. yunnanensis(Fr.)hand.-mazz.

Abstract

The invention discloses a seed seedling raising method for Paris polyphylla var. yunnanensis(Fr.)hand.-mazz.. By the method, the rate of emergence is increased, and the seedling rate is increased. Paris polyphylla var. yunnanensis(Fr.)hand.-mazz. seeds subjected to stratification treatment and post ripening are uniformly broadcast on a prepared artificial substrate according to 600 / 800 per square meter, and by the loose, air-permeable and water-retention substrate, the good development of root systems in an early Paris polyphylla var. yunnanensis(Fr.)hand.-mazz. seed germination process is ensured, so that the rate of emergence is increased, and can reach more than 80 percent; by leaf dressing, the nutrition of seedlings is added, the growth of tubers of the Paris polyphylla var. yunnanensis(Fr.)hand.-mazz. seed seedlings is promoted, the stress resistance of the seedlings is improved, the seedling rate is greatly increased, and reaches more than 60 percent, the utilization rate of Paris polyphylla var. yunnanensis(Fr.)hand.-mazz. seed resources is increased, the good development of Paris polyphylla var. yunnanensis(Fr.)hand.-mazz. plantation is promoted, and special rare medicinal material resources in China are effectively protected.

Description

technical field [0001] The invention relates to a method for breeding seedlings of Chinese medicinal materials, in particular to a method for efficiently raising seedlings of Paris polyphylla var. yunnanensis (Fr.) Hand. Mazz. seeds. Background technique [0002] The seeds of Chonglou dianthus were underdeveloped, and the freshly harvested seeds did not have complete embryos, which belonged to the recalcitrant type seeds. Under natural conditions, it takes two winters to germinate the seeds of Dianzhonglou, which takes about 18 to 22 months. The emergence rate is relatively low, and the seedling rate is even lower, less than 1%. In order to shorten the germination time of the seeds of Chonglou dianthus, many scientific research institutes have carried out the research on breaking the seed dormancy, hormone and variable temperature treatment are the more commonly used methods. These methods appropriately shorten the germination time of the seeds of Chonglou dianthus, but do ...

AI Technical Summary

Problems solved by technology

Under natural conditions, it takes two winters to germinate the seeds of Dianzhonglou, about 18 to 22 months, and the emergence rate is relatively low, and the seedling rate is even lower, less than 1%.

Due to the limitation of resources and environment, few people have studied the reasons for the low germination rate and poor seedling growth rate of P.