7 results about "Canna indica" patented technology

The invention discloses a filler reinforced ecological floating bed for purifying aquaculture tail water and application thereof, and belongs to the technical field of water treatment. The filler reinforced ecological floating bed comprises canna cultivated in a floating plate and straw or straw biochar suspended below the floating plate; the straw biochar is obtained by taking straw as a raw material and pyrolyzing the straw at 500 DEG C or 700 DEG C. The ecological floating bed capable of purifying the aquaculture tail water is prepared by utilizing the emergent aquatic plant canna which has high purification efficiency on nitrogen and phosphorus and the straw or straw biochar which has a large surface area and is beneficial to the growth of denitrifying bacteria, and the ecological floating bed can effectively reduce the content of nitrogen and phosphorus in the aquaculture tail water, accelerate the denitrification and dephosphorization rate and improve the quality of the aquaculture tail water. The tail water purification method can be used for reducing nitrate accumulation, realizing tail water purification, providing scientific basis and technical support for tail water treatment work in aquaculture, and being beneficial to promoting green and sustainable development of aquaculture.

The invention belongs to the field of biological detection and ecological restoration, and discloses a canna polymorphic microsatellite molecular marker primer, application and a wetland ecological restoration method. Primers of the canna polymorphic microsatellite molecular marker comprise five groups of primer pairs, and ten pairs of primers MRJ1-MRJ10 are sequentially combined to form the five groups of primer pairs. According to the wetland ecological restoration method, the planting scale of canna is increased to 30-40% of the total area of the wetland. A primer of the canna polymorphic microsatellite molecular marker can be used for identifying the genetic relationship of the canna population, and is used for screening the canna population which is relatively close to the genetic relationship of the known canna population with high water purification efficiency; the wetland ecological restoration method provided by the invention can improve the wetland ecological restoration efficiency.

The present invention belongs to the field of plant biotechnology, and specifically relates to a method for establishing and applying a TRV virus-induced canna endogenous gene silencing expression system. The method comprises: CiPDS Specific fragment construction and recombination pTRV2‑PDS This invention utilizes an Agrobacterium-mediated viral infection system, uses Nicotiana benthamiana as a transitional host, and prepares viral sap. This method effectively infects canna with the TRV virus through friction inoculation. This invention establishes a VIGS technology system in canna for the first time, overcoming the limitations of traditional heterologous transformation techniques and addressing the lag in canna floral organ development research caused by the lack of efficient gene function verification tools. Furthermore, by optimizing temperature and inoculum material selection, silencing stability and phenotypic observability are significantly improved.

The application provides a method for preparing biochar potassium slow-release fertilizer by using potassium-rich straw, and the method comprises the following steps: preparing canna indica powder; mixing the canna indica powder with minerals in a proportion to obtain granular composite raw materials; pyrolyzing the granular composite raw materials, naturally cooling to room temperature after the pyrolysis is completed, taking out the solid product, and obtaining granular composite biochar, namely the biochar potassium slow-release fertilizer; and the method can greatly get rid of the dependence on traditional potassium fertilizer by mixing the canna indica plants with minerals to prepare the composite potassium-rich biochar, and effectively solves the problem of treatment and disposal of waste wetland biomass.

The invention belongs to the technical field of water purification devices, and particularly relates to a lake water purification floating island. The method comprises the following steps: firstly, improving a floating island from the aspect of a matrix material, wherein the matrix material is prepared from the following components in parts by weight: 20-25 parts of straw with the length of 1-2mm, 10-15 parts of a filter material, 20-25 parts of activated sludge, 10-15 parts of andrographis paniculata powder and 5-10 parts of canna indica leaf powder; the survival rate of aquatic plants is increased, the pollution rate of weeds and miscellaneous algae is reduced, and a good water purification effect is achieved. The structure is improved, a floating bed is included, a filling bin is arranged on the floating bed, the movable chain is used for planting aquatic plants, and filler filled in the filling bin and the movable chain is a matrix material. The floating island structure is matched with the matrix material, and nutrients required by initial growth are supplemented to the aquatic plants through the filling bin.

This invention relates to the field of seed germination devices, specifically to a seed germination device for canna lily cultivation. It includes a germination tank, a support frame positioned at the top of the tank's inner cavity, a heating mechanism positioned within the tank's inner cavity, and an aerator positioned at the bottom of the tank's inner cavity. An outer sleeve is mounted on the support frame, and an inner sleeve is located inside the outer sleeve. A first support plate with a first through hole is slidably mounted inside the inner sleeve. A high-position fixing component is positioned between the outer sleeve and the inner sleeve. This device uses the first support plate to push the seeds to a high position for temporary fixation, and after descent, the seeds fall naturally in a parabolic trajectory due to gravity. This achieves the effect of gently tumbling and repositioning the seeds without mechanical blade contact or water flow impact, effectively solving the problems of existing static soaking leading to oxygen deficiency and seed rot, and existing mechanical stirring blades causing seed tearing and embryo damage due to rigid impact.

‘HGV25’ is a new and distinctive variety of Calathea plant which is characterized by having a broader growth habit when compared to other varieties of the same species, a green adaxial laminar surface with a variegation pattern consisting of a broadly and irregularly outlined midrib colored very light green to greyed-green and greyed-green striations along the interveinal areas of the distal half of the lamina, a dark greyed-purple lower foliar surface with which transitions to dark green towards the margins and an irregular greyed-orange ring present. ‘HGV25’ has shown to have the stability of all characteristics from generation to generation.