Abstract:
【Objective】 To screen the best disinfection methods and mastere the best method of promoting seed germination of Dried Apricot seeds, and meanwhile, to clarify germination and seedling growth characteristics of the seeds in the hope of revealing the seed dormancy mechanism and improving the seedling growth quality.
【Methods】 In this experiment, four disinfection methods were set up to disinfect apricot seeds, and the Dried Apricot seeds were treated with hormone method, warm soup soaking method, low temperature layering method, and hormone + low temperature layering method, and after that, the germination and seedling growth indexes were measured.
【Results】 (1) The mold rate of apricot seeds treated with 1% carbendazim was 0.00%, the least toxic to seeds, and the highest germination rate of seeds was 88.67%.(2) The seed germination rate of Dried Apricot was lower after soaking in hormone and warm soup without peeling treatment, which indicated that Dried Apricot seeds had dormancy characteristics of seed coat.The germination time of the Dried Apricot seeds with shell was long at low temperature stratification, which indicated that the shell of the apricot had dormancy characteristics of seed shell.(3) Under different methods, the germination and seedling emergence time of Dried Apricot seeds treated with 500 mg/L gibberellin treatment was the shortest, and the seedling growth characteristics was the best, with a germination rate of 90.50% and a seedling emergence rate of 80.10%.In addition, after 120 days of low-temperature layering treatment of Dried Apricot, the germination rate and seedling emergence rate were higher, the germination rate was 84.67%, the seedling emergence rate was 79.10%, and the seedling growth characteristics were good, but the breeding time was longer.The seed germination rate and seedling emergence rate of warm soup soaking and low temperature layer after hormone treatment were generally not high, the seedling emergence rate was not uniform, and the seedling growth characteristics were poor.
【Conclusion】 The comprehensive analysis shows that 1% carbendazim has the best disinfection effect on apricot seeds, and compared with Dried Apricot seeds treated by different methods, the germination rate and seedling emergence rate of semi-peeled seeds treated with 500mg/L gibberellin are higher, the seedling growth characteristics is the best, the cultivation cycle can be greatly shortened, so the seedling cultivation method can be used in production.