A kind of cultivation method of konjac

Abstract

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.

Description

technical field [0001] The invention relates to the technical field of plant hybridization, in particular to a konjac hybridization method. Background technique [0002] Konjac is a typical subtropical mountain and half-mountain indigenous crop. Konjac belongs to the Araceae family (Araceae). Amorphophallus ) Perennial herb, is the only one found so far that can synthesize glucomannan in large quantities ( konjac glucomannan, KGM ) of plant populations. It is mainly distributed in China, Japan and Southeast Asian countries. There is no history of planting in America and Europe. According to the forecast of the China Konjac Association, the development of China's konjac industry will become a large industry worth tens of billions in the next 5-10 years. In the past five years or so, China's konjac industry will have an opportunity to increase the demand for konjac powder by 20,000 tons in the food and pharmaceutical fields, that is, to occupy the Japanese market with a ...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for cultivating konjac to solve the problems of low reproductive coefficient, high planting cost, weak disease resistance and high planting climate requirements of existing konjac varieties