Hydroponic propagation expanding and seed yam preservation method for dioscorea alata

Abstract

An embodiment of the invention discloses a hydroponic propagation expanding and seed yam preservation method for dioscorea alata in the technical field of agricultural production. The hydroponic propagation expanding and seed yam preservation method for dioscorea alata comprises steps as follows: S1, one section of stem segment is reserved, and each section at least contains a leaf; S2, the stem segment in S1 is transferred into a cultivation environment for field planting culture, and the stem segment is cultivated into a hydroponic seedling with root length of 8-12 cm and root number of 3-5to serve as a seedling; and S3, the hydroponic seedling is transferred into a seedling bed medium for seedling bed management, and 30 g or more of micro tuber formed by screening is taken as seed yam.According to the method, the current seed yam propagation expanding technology for the dioscorea alata is simplified, dioscorea alata reproduction cost is reduced, and yield and quality of the seed yam propagation are guaranteed.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of agricultural production, in particular to a method for hydroponic multiplication of ginseng and potato yams and preservation of seed potatoes. Background technique [0002] Ginseng potato (Dioscorea alata) belongs to Dioscorea family Dioscorea genus, commonly known as yam, is a perennial twining herbaceous vine plant, mainly distributed in Yunnan, Jiangxi, Guangxi and other southwestern regions of China. There are many kinds of ginseng and potato yams, and there are rich variations within the species. However, most ginseng and yams do not bear or have few seeds, and can only be propagated through tubers. Long-term use of tubers for propagation not only has low reproduction coefficient, high economic cost, and is greatly affected by soil-borne diseases, but also easily causes species degradation, which severely limits the development and utilization of high-quality ginseng and pot...

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Problems solved by technology

[0004] The embodiment of the present invention provides a hydroponic multiplication of ginseng and potato yams and a method for preserving seed potatoes to solve the existing reproductive characteristics of ginseng and potato yams that do not produce or produce less than zero seeds. Long-term use of tubers for propagation results in low reproductive coefficient and economic The cost is high, and it is greatly affected by the damage of soil-borne diseases, which may easily cause the degradation of the variety and the difficulty of preservation.

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