| This article is the study on the same variety Chinese yam's growth and development and ingredient unused trends in Qinyang and Pingyao ; on the quality and the discrimination character of different variety's yam in the same producing area ;on the character of GBS and the quality in different producing area of the yam.1. The growth and development almost doesn't change with the producing areas, but the content of nitrogen , phosphen kalium in the rhizoma stem leaf, that of chlorophyll in leaf , but the activeness of amylase in the amylase in the rhizoma isn't the case . The absorb flower of nitrogen^ phospher is about in flower, the absorb of kaliumis almost steady in the whole growth stage ; The higher content of nitrogen phospher , kalium in Qinyang yam is higher than that in Pingyao . The higher content of chlorophyll appears in the rhizoma inflate initial stage in the two producing areas, then reduces with the growth course , but the debase extent is less in Qinyang , more in Pingyao; amylase activeness in the rhizoma is more less in the initial stage and dormancy, increasing sharp in flower in Qinyang , keeping steady in dormancy, but increasing not obvious in flower in Pingyao , sharp in dormancy.2. The difference between the two area is slightly in ingredient unused , but the content of all ingredients is not the same. The content of the starch ishigher in the initial stage and flower , that in Qinyang is higher than that in Pingyao ; The unusedness of the protein is almost steady in the whole stage, the content of it in Qinyang is higher than that in Pingyao . The content of water-solubility and mellow-solubility substances reduces with the growth stage , the content of it in Qinyang is higher than that in Pingyao; The content of amylose is higher in initial stage and dormancy , that in Qinyang is much higher than that in Pingyao. The content of amylose has an negative correlation with the content of nitrogen , phospher and the amylase activeness in the rhizoma , what's more, the correlation with amylase has an obvious level, the positive correlation with mellow-solubility substance, different correlation with other factors in different producing areas.3. The content of all ingredient is different in different varieties yam. The content of starch has obvious difference among varieties , but no obvious difference between varieties ; obvious difference on protein, the content of protein is highest in Huazi yam and Baiyu yam with no obvious difference between them, that of Tiegun and Shanxi Taigu yam is in middle with no obvious difference and obvious difference in contrast to Huazi and Baiyu, that of Wenxian Taigu is laighest with obvious difference in contrast to other four varieties ; The content of water-solubility substance has bally obvious difference , that of Huazi is the highest with obvious difference in contrast to other four varieties , that of Tiegun is laighest with obvious difference in contrast to other four varieties , that of Shanxi Taigu, Baiyu and Wenxian Taigu is in the middle with no obvious difference between them; The content of mellow-solubility substance has obvious differencewith no obvious difference between them; The content of water has obvious difference , that of Tiegun is laighest with obvious difference in contrast to other four varieties , not between other four varieties ; The content of amylose has bally obvious difference , that of Tiegun is the highest with obvious difference in contrast to other four varieties , not between other four varieties .4. It has difference in the character of the cell mothball substance and isomorphic amylase chart among varieties, but no difference between primitive and different variety. It has spinal oxalic acid rime, with slightly difference among four varieties . Among them, the rime of Wenxian Taigu and Shanxi Taigu is thin and long , slightly clarity, that of Baiyu is short and thin, clarity. That of Tiegun is short and fat, obscurity, having obvious distinction with other three varieties . The isomorp...
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