ヨモギの生育経過にともなう物質分配および地下茎における炭水化物含量の推移

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1. Dry matter allocation and carbohydrate content in the rhizome of Artemisia princeps Pamp. were determined throughout the growing season. The plants which emerged from one-bud segments of rhizomes were trasplanted on May 4th in pots under field conditions. 2. The number of rhizomes increased rapidly in the early stages and one plant developed 12 rhizomes on an average until the end of the growing season, half of them being formed within the first month. 3. The allocation of net production at the early stages was higher both in the leaves and roots than in the other organs, while 2 to 3 months after transplanting the value became highest in the rhizomes. The carbohydrates in the stem and leaves were redistributed to the rhizomes in autumn. 4. The terminal part of the rhizome contained high levels of reducing and non-reducing sugars but low levels of polysaccarides. The other parts of the rhizomes contained high levels of non-reducing sugars and polysaccarides but low levels of reducing sugars. The contents of non-reducing sugars decreased gradually with time. 5. The growth of the rhizome continued throughout the growing season, but the contents of polysaccarides in the rhizomes were remarkably reduced at the time of floral initiation and then sharply increased one month after flowering. The energy yielded from polysaccaride decomposition in the rhizomes appears to be supplied mostly to the rhizome tips rather than to the shoots.
日本雑草学会の論文
1984-05-25

ヨモギの生育経過にともなう物質分配および地下茎における炭水化物含量の推移

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