A kind of screening method of Morchella apex high-quality strain

Abstract

The invention provides a screening method of high-quality morchella conica strains, which comprises screening of strain individual size, pileus morphology and color, stipe morphology and color, spore color and quantity four-level step-by-step elimination and sclerotion generative capability. The strains which are not eliminated are inoculated into a PDA culture medium to be subjected to screening of mycelial growth speed, sclerotium generating time and sclerotium generating quantity, so as to obtain the high-quality morchella conica strains. After being planted, the high-quality strains obtained by using the method are rapid in growth speed and are harvested after fruiting for 7-10 days, the generated morchella conica strains are large in individual size, perfect in appearance, the yield of fresh strains can reach more than 80kg / mu and is stable. The difference of the yields of the high-quality strains screened by using the method is maximally less than 5% in continuous three years, so as to solve the technical problem that the yield of current morchella conica is unstable in industrialized development.

Description

technical field [0001] The invention relates to a method for screening high-quality strains of Morchella apex. Background technique [0002] Morel (M.conica) is a kind of Morchella spp., with medium-sized ascocarp, conical head and pointed apex, so it gets its name. Morchella apex is widely distributed in my country, mainly in Yunnan, Gansu, Sichuan and other places. Because of its perfect body and large size, morel apex is one of the main varieties exported as morel. At present, there are a lot of studies on morel apex, mainly focusing on the field of cultivation technology and biological characteristics. The applicant is one of the earlier departments in the study of morel apex. There is a problem of unstable output in the production. We have evaluated the yield of M001 morels planted in 2006-2008. In 2006, the yield per mu of morels was 62.57kg. The yield per mu of morel mushrooms was 49.51kg, and the yield per mu in 2007 and 2008 was 13.19% and 20.87% lower than that ...

AI Technical Summary

Problems solved by technology

At present, there are a lot of studies on morel apex, mainly focusing on the field of cultivation technology and biological characteristics. The applicant is one of the earlier departments in the study of morel apex. There is a problem of unstable output in the production. We have evaluated the yield of M001 morels planted in 2006-2008. In 2006, the yield per mu of morels was 62.57kg. The yield per mu of morel mushrooms was 49.51kg, and the yield per mu in 2007 and 2008 was 13.19% and 20.87% lower than that in 2006, respectively. We have done relevant experimental research and found that the pros and cons of strains are closely related to the stable yield of morels in the future. Therefore, based on many years of research experience, the present inventor has summed up a screening method for high-quality strains of Morchella apexus, which provides important technical support for the stable and high yield of Morchella apexus

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