Research On The Effect Of Konjac Seed Corms With Different Ages On The Yield And Quality Of Konjac Corms

Konjac is a monocotyledonous, perennial herb, which has been exploited largely for food, medicinal, chemical uses because of rich polysaccharides in the corms. Enshi Tujia and Miao Autonomous Prefecture are rolling mountains and crisscrossed ravines and gullies with a considerable difference in elevation. Enshi Prefecture is of Central Asia mountain monsoon humid climate, so, it is neither severely cold in winter nor intensely hot in summer. The spring here comes late but the autumn comes early. This region is characterized by fogginess and dampness, plentiful rainfall and four clearly demarcated seasons. The peculiar natural conditions of Enshi Prefecture is suitable for growth of Amorphophallus konjac. With more than 10 years' development, the cultivation scale of Amorphollus konjac has been steadily expanded. So far, Cultivating konjac has become important source of income of the the farmers and konjac processing enterprises in Enshi Prefecture.By conducting experiments in four places with different elevations in Enshi Prefecture, The author investigates the effect of konjac ages on agronomical characteristics, degree of disease occurrence, corm yield and planting benefits by conducting experiements in four places with different elevations in Enshi Prefecture. The author analyzes and evaluates the relations of konjac ages with the drying rate of konjac corms, the rate of fine flour and the quality of fine flour. Also, the author explores the methods of fine flour extraction and quality test of fine flour.The research results show that: The best konjac seed corms are the rhizomes that have been cultivated for one year and that are the provenance for reproducing seed corms. The rhizomes and one-year-old Konjac are characterized by early seedling emergence, low incidence rate, relatively higher yield and good economic benefits. As the konjac rhizome is young, it has strong viability. Therefore, it induces roots and develops leaves early after it is sowed. The plant can develop the second round of foliage leaves and the weight gain coefficient of the corm is big.As the one-year-old konjac seed corm is young, it has strong viability. It induces...