A method for cultivating high-yield foliage corms of bulbil-like konjac underground corms

Abstract

The invention discloses a cultivation method for high yield of leaf surface bulbs of bulbel knojak underground bulbs. The cultivation method comprises the following steps of processing underground bulbs and dwarfing plants after leave expansion. Concretely, bulbel knojak underground bulbs are immersed into 40 to 80ppm paclobutrazol solution for 8 to 12 hours; then the bulbel knojak underground bulbs are taken out and stored in environment with the temperature of 15 to 35 DEG C and the humidity no more than 45%; when the day and night temperature is between 15 to 35 DEG C, the bulbel knojak underground bulbels are planted; during the primary period of konjak leafbud sprouting, sunshade is avoided and sunlight is employed for natural dwarfing of the plants; and dwarfing delayer is sprayed after the leaves are fully expanded. Azole compounds are employed for high-efficient plant growth inhibitor to dwarf and strengthen konjak plants, so fast growth of the konjak terminal bug plants in sunshade environment can be delayed and controlled and synthesis of gibberellins in parent bulbels can be restrained; plant apical meristem growth can be delayed and cell elongation speed can be decelerated; plants can be dwarfed but leaf formation cannot be affected; and nutrients in the plants can be quickly accumulated in the leaf surface bulbs.

Description

technical field

[0001] The invention belongs to the technical field of plants, and further belongs to the technical field of konjac provenance cultivation and planting, and in particular relates to a cultivation method for bulbil-like konjac underground bulbs and high-yield foliage bulbs. Background technique

[0002] Although China and Japan rank first and second respectively in the global konjac market share, China uses Amorphophallus konjac as a large-scale cultivated species, while Japan uses Amorphophallus konjac as the only cultivated species. According to incomplete statistics, the existing planting area in the country exceeds 130,000 hm 2 , the total output of fresh taro is about 1.3 million tons, but the annual output of konjac powder is only 25,000 to 30,000 tons. Because the cultivated species are mainly local varieties, the quality of konjac cultivated in China is seriously degraded, and no breakthrough has been made in disease-resistant varieties so far, result...