Rhizome section fast propagation method for polygonum hydropiper

Abstract

The invention discloses a rhizome section fast propagation method for polygonum hydropiper. The method comprises the following steps: (1) drawing materials from the wild, namely selecting a polygonum hydropiper community with good wetland growth vigour, and excavating rhizomes in a soil layer underground, wherein the rhizomes are kept complete while sampling and loading; (2) selecting rhizome sections, namely washing the rhizomes taken back from the wild with running water for removing soil; (3) soaking with rooting powder solution, namely putting the cut rhizome section into the rooting powder solution to be soaked; (4) preparing a substrate, namely blending equivoluminal river sand and peat soil to prepare a culture substrate for later use; (5) preparing a seedling bed, namely paving the substrate on the seedling bed; (6) sowing, namely horizontally placing the selected rhizome sections into a sowing furrow, and then covering with the culture substrate, wherein the rhizome sections are connected end to end; (7) cultivating, namely watering once everyday, so that the substrate keeps wet but water is not logged; and (8) transplanting, namely excavating plants from the substrate when new roots grow on the rhizomes, and transplanting the plants into soil. The method disclosed by the invention is convenient, operation is easy, propagation period is short, germination rate reaches 90%, and transplanting survival rate reaches 95%.

Description

technical field [0001] The invention belongs to the field of biotechnology, and more specifically relates to a rapid multiplication method for rhizome segments of Polygonum hydroponica, which is suitable for wetland restoration, artificial wetlands and construction of light industrial raw material bases for a large number of high-quality Polygonum hydroponica seedlings. Background technique [0002] Polygonum hydropiper L., also known as Polygonum hydropiper L., is distributed in most parts of China, living in wetland habitats such as river beaches, ditches, and lakesides. The stem of Polygonum hydroponica is erect, multi-branched, 40-70 cm high, the raceme is spike-shaped, the achene is ovate, wrapped in the persistent perianth, and the flowering period is July-August. In the descriptions of "Flora of China" and local chronicles, Polygonum hydrochloride is an annual herb, but in Dongting Lake wetland, due to long-term adaptation to the wetland habitat of seasonal floodi...

AI Technical Summary

Problems solved by technology

However, the seeds of Polygonum hydroponica are small, the germination rate is low and the seedling period is long, so it is difficult to provide a large number of engineering seedlings in a short period of time.