30 results about "Calla" patented technology

The invention relates to a biological preparation capable of preventing and treating rice streak disease and promoting growth and application thereof, belonging to the technical field of biological pesticide. The biological preparation is prepared by a conventional method, and a producing strain is YFY02 (Lysobacter ginsengisoli). The strain of the biological preparation is characterized in that (1) the colony is round and in a opaque dilute liquid shape, and is dark yellow at initial stage of culture and chocolate brown or dark brown at later stage of culture, and the thallus is in the shapeof a long rod; (2) the strain has strong bacteriostatic ability and wide antibacterial spectrum, can keep value on leaf surfaces of crops such as rice and the like and roots of crops such as konjak, calla and the like, can generate substances similar to antibiotics to promote the growth of crops of rice and the like, and has obvious and stable effect on preventing and treating rice streak disease. In the invention, the strain is cultured in liquid or solid and is prepared to liquid preparation or wettable powder. The invention has obvious and stable effect on preventing and treating bacterialdiseases of rice streak disease, and good comprehensive properties, and is easy for industrial production.

The invention discloses an alocasia macrorrhizos test-tube plantlet multiplication method which involves MS culture media, a hormone, a carbon source, a cultivation mode and cultivation time. According to the method, alocasia macrorrhizos test-tube plantlets are used as a material, the induction and multiplication effect is obvious, the growth coefficient reaches more than eight, and the alocasia macrorrhizos industrialized production speed can be greatly increased. By the adoption of the method, the problems that a traditional alocasia macrorrhizos division propagation mode is low in propagation coefficient and long in period and can be limited by the environmental factors such as seasons are solved, a liquid cultivation mode is adopted, agar or carrageenan does not need to be added, the tissue culture operation process is reduced, the tissue culture cost can be lowered, the cultivation environment is uniform, nutrient uptake can be promoted, and alocasia macrorrhizos seedlings generated in the liquid cultivation mode are more orderly than aseptic seedlings generated through callus tissue.

The invention discloses a konjac cultivating method. A.muelleri in the Sino-Burmese border area as a female parent and a konjac germplasm A.macrorhizus as a male parent are subjected to intrageneric artificial cross, and seed collecting, close planting and sowing, cultivation and seedball harvesting are performed; a plant is selected from F1 generation, wherein the plant has dark green leaf color, grows robustly, has stems being green stems and having greenish brown stripes, has tender white terminal buds, has white flower type and flower color having uniform light purple spots, has the spathe like calla and shorter than appendant organs, has light yellow-to-white tuber flesh color, and has an atmogenic corm growth pattern comprising that single plants are grown on stems, petiole crotches and main veins and then are subjected to pollination, seed collecting, sowing and screening; then an individual is selected from F2 generation and is used as a new variety, wherein the individual has stems being green stems and having greenish brown stripes, has tender white terminal bud, has white flower type and flower color having uniform light purple spots, has the spathe like calla and shorter than appendant organs, has no pollen produced after flowering, has light yellow-to-white tuber flesh color, has atmogenic corms which can be grown on stems, petiole crotches and main veins, has KGM content more than 70%, and has 39 pairs of chromosomes.