Balance dormancy breaking and seedling cultivation method of cerasus campanulata seeds

Abstract

The invention discloses a balance dormancy breaking and seedling cultivation method of cerasus campanulata seeds. The method comprises the following steps: collecting and treating the seeds, namely, soaking the seeds in a 0.3% potassium permanganate solution for 60 minutes, and then washing the seeds with water until the seeds are colorless; evenly spreading out the seeds under the sun at the temperature of 20-30 DEG C from 10 A.M. to 3 P.M. in a sunny day, exposing to the sun for 40-60 minutes, putting away the seeds when the longitudinal seam apex acuminate of hard seed coat has tiny crack, and then treating by accelerating germination; breaking dormancy and accelerating germination, namely, fully mixing the seeds with washed river sand having the water content of 18-25% according to the ratio of 1: (3-4), then putting the mixture into a basket or a bag, and storing in an air-conditioning fruit and vegetable fresh-keeping refrigeration house having the temperature of 2-5 DEG C and the relative humidity of 90-95% for 70-80 days; carrying out seedling cultivation. The method for breaking dormancy as well as culturing and transplanting seedlings of the cerasus campanulata seeds is capable of remarkably improving the germination rate and the emergence rate, thus being suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of plant breeding, and relates to a seedling breeding technology of rare woody flower Fukienza cherry, in particular to a method for balanced dormancy breaking and bud cultivation of Fukienza cherry seeds. Background technique [0002] Fujian Mountain Cherry Blossom (Prunus campanulata Maxim), a deciduous tree belonging to Rosaceae, is widely distributed in Fujian, Zhejiang, Guangdong, Guangxi, Taiwan and other provinces and regions. , flowers first and then leaves, the trees are full of flowers, charming and colorful, and it is magnificent. Occasionally, flowers and leaves can be seen together, and the branches are covered with green leaves and flowers. yedoensi, also known as Japanese cherry blossoms), weeping early cherry blossoms (C. subhirtella var. pendula), etc., are deeply loved by people and are widely used in garden landscaping in southern my country. [0003] Fujian mountain cherry belongs to the s...

AI Technical Summary

Problems solved by technology

In addition, the germinated Fujian mountain cherry seeds are susceptible to uneven seedling emergence due to the influence of external factors, which in turn leads to serious growth and differentiation of seedlings during the seedling raising process.

At present, public reports break the dormancy of Fujian mountain cherry seeds and the main methods of sowing seedlings are: sowing with harvesting, refrigerated autumn sowing, refrigerated spring sowing, variable temperature sand storage for autumn sowing, variable temperature sand storage for spring sowing, air-dried autumn sowing, air-dried spring sowing, and sand storage There are multiple methods such as autumn sowing, sand storage and spring sowing, but the germination rate of the methods of air-drying autumn sowing, air-drying spring sowing, sand storage autumn sowing and sand storage spring planting are all below 50%, and the germination rate of adopting the method of harvesting and sowing is less than 80%. The emergence of seedlings is extremely irregular. Although the germination rate of refrigerated autumn sowing and variable temperature sand storage in autumn sowing methods can reach 80-90%, but the germination needs to last for more than 30 days. The uneven germination leads to serious growth and differentiation of seedlings. The germination rate is low; although the germination rate of cold storage spring sowing and variable temperature sand storage spring sowing method can reach more than 95%, it causes the seedling raising cycle to be extended by 1 year