A.konjac K.Koch is found throughout China’s production areas and is the most important cultivated species. Flower konjac has strong adaptability and a wide range of growth. It can adapt to all mountainous areas in China that are suitable for konjac. It can also grow well in the specialty areas of white konjac, especially in northern latitudes, with higher altitudes, lower temperatures, and weaker sunshine. Places with high humidity. The active accumulated temperature of Amorphophallus konjac from germination to seedling collapse is 4278°C above 10°C, and the effective accumulated temperature above 15°C is 1089.3°C. Various variations of the above-ground parts appeared in various places, as did the intrinsic qualities of the underground bulbs. To this end, Southwest University collected 12 konjac farm varieties from all over the country in 1986 and conducted three years of variety comparison tests, regional trials and production trials. It selected and approved the country's first excellent variety of Wanyuan flower konjac, with an output of 30.3 tons/hectare, glucomannan content accounts for 58.8% of dry matter. In 2003, Hubei Province Enshi Prefecture Academy of Agricultural Sciences bred Qingjiang Amorphophallus, and in 2008 Southwest University bred a new variety of Yumo No. 1 Amorphophallus konjac.

Characteristics of flower konjac: The bulb is nearly round, with reddish-brown skin and small dark brown spots. It is large in shape. Generally, commercial taro weighs more than 0.5 kilograms, often up to 2 kilograms, and the heaviest weighs more than 10 kilograms. , high yield, the bulb top buds are bright pink, the leaf buds are in an inverted "V" shape, the bud length is only about 1 cm, the flower buds are in an inverted "U" shape, the buds are more than 1.5 cm long, and can grow to 10 cm before planting in spring. Flowering plants are easy to identify and can be dealt with early. The inside of the bulb is gray-white, and glucomannan crystal particles can be seen. The dry matter content of the bulb is 21.1% and the glucomannan content is 58.8% (dry basis). The top advantage is obvious, each plant only grows one seedling, and there are rarely double seedlings. The rhizomes are concentrated in the middle and upper part of the bulb. The plant has strong growth potential and is 1 to 1.5 meters tall. The leaf lobes are relatively upright, with many leaflets, oblong or oval, and the petiole is thick. The background color of the petiole is related to age. If the child is younger, the color will be pinker; if the child is older, the color will be darker (dark) green. Generally, the petioles of two to three years old are green or light green, with irregular dark green-brown patches on them, which are connected and cover the petioles with small white spots on them. The inflorescence stalk is 40-70 cm long and has the same color as the petiole. The spathe is funnel-shaped, 25-43 cm long, with a sweeping base, a tube length of 6-13 cm, an eaves length of 15-30 cm, a width of 15-25 cm, and a pointed shape. The spathe is pale green on the outside, contains dark green patches, and is deep purple-red inside. The spadix is ??twice as long as the spathe. The female inflorescence is cylindrical, about 3.5 cm long, and the male inflorescence is 8 cm long. The appendage is sword-shaped, purple-red, 30-60 cm long, and hollow. The filaments are united, about 2.5 cm long and wide, the anthers are 4-chambered, and the pollen is spherical. The stigma is 3- or 2-lobed, with papillary protuberances. The style is about 3 cm long. The upper end of the ovary is purple-red, 3 cm long, with 3 more cells and 2 less cells, and 1 ovule in each cell. The fruit chamber is oval, green at first and orange-red when mature. The flowering period is from April to May, and the fruiting period is from June to August. It is more resistant to soft rot and white silkworm than other local types. It can adapt to the environmental conditions of high altitude, northerly latitude, low temperature and insufficient sunshine.

Picture 3 Flower Konjac

1. Flower 2. Male inflorescence 3. Anther 4. Transverse stigma 5. Transverse pistil 6. Longitudinal section of anther 7. Transverse section of anther 8. Longitudinal section of pistil